static void
test0(int n, const char * expected)
{
DBINT ind, expected_ind;
char text_buf[16];
dbfcmd(dbproc, "select c from #null where n = %d", n);
dbsqlexec(dbproc);
if (dbresults(dbproc) != SUCCEED) {
fprintf(stderr, "Was expecting a row.\n");
failed = 1;
dbcancel(dbproc);
return;
}
dbbind(dbproc, 1, NTBSTRINGBIND, 0, (BYTE *)text_buf);
if (use_nullbind)
dbnullbind(dbproc, 1, &ind);
memset(text_buf, 'a', sizeof(text_buf));
ind = -5;
if (dbnextrow(dbproc) != REG_ROW) {
fprintf(stderr, "Was expecting a row.\n");
failed = 1;
dbcancel(dbproc);
return;
}
text_buf[sizeof(text_buf) - 1] = 0;
printf("ind %d text_buf -%s-\n", (int) ind, text_buf);
expected_ind = 0;
if (strcmp(expected, "aaaaaaaaaaaaaaa") == 0)
expected_ind = -1;
/* do not check indicator if not bound */
if (!use_nullbind)
ind = expected_ind;
if (ind != expected_ind || strcmp(expected, text_buf) != 0) {
fprintf(stderr, "expected_ind %d expected -%s-\n", (int) expected_ind, expected);
failed = 1;
dbcancel(dbproc);
return;
}
if (dbnextrow(dbproc) != NO_MORE_ROWS) {
fprintf(stderr, "Only one row expected\n");
dbcancel(dbproc);
failed = 1;
}
while (dbresults(dbproc) == SUCCEED) {
/* nop */
}
}
bool QTDSResult::reset (const QString& query)
{
cleanup();
if (!driver() || !driver()-> isOpen() || driver()->isOpenError())
return false;
setActive(false);
setAt(QSql::BeforeFirstRow);
if (dbcmd(d->dbproc, const_cast<char*>(query.toLocal8Bit().constData())) == FAIL) {
setLastError(d->lastError);
return false;
}
if (dbsqlexec(d->dbproc) == FAIL) {
setLastError(d->lastError);
dbfreebuf(d->dbproc);
return false;
}
if (dbresults(d->dbproc) != SUCCEED) {
setLastError(d->lastError);
dbfreebuf(d->dbproc);
return false;
}
setSelect((DBCMDROW(d->dbproc) == SUCCEED)); // decide whether or not we are dealing with a SELECT query
int numCols = dbnumcols(d->dbproc);
if (numCols > 0) {
d->buffer.resize(numCols * 2);
init(numCols);
}
for (int i = 0; i < numCols; ++i) {
int dbType = dbcoltype(d->dbproc, i+1);
QVariant::Type vType = qDecodeTDSType(dbType);
QSqlField f(QString::fromAscii(dbcolname(d->dbproc, i+1)), vType);
f.setSqlType(dbType);
f.setLength(dbcollen(d->dbproc, i+1));
d->rec.append(f);
RETCODE ret = -1;
void* p = 0;
switch (vType) {
case QVariant::Int:
p = malloc(4);
ret = dbbind(d->dbproc, i+1, INTBIND, (DBINT) 4, (unsigned char *)p);
break;
case QVariant::Double:
// use string binding to prevent loss of precision
p = malloc(50);
ret = dbbind(d->dbproc, i+1, STRINGBIND, 50, (unsigned char *)p);
break;
case QVariant::String:
p = malloc(dbcollen(d->dbproc, i+1) + 1);
ret = dbbind(d->dbproc, i+1, STRINGBIND, DBINT(dbcollen(d->dbproc, i+1) + 1), (unsigned char *)p);
break;
case QVariant::DateTime:
p = malloc(8);
ret = dbbind(d->dbproc, i+1, DATETIMEBIND, (DBINT) 8, (unsigned char *)p);
break;
case QVariant::ByteArray:
p = malloc(dbcollen(d->dbproc, i+1) + 1);
ret = dbbind(d->dbproc, i+1, BINARYBIND, DBINT(dbcollen(d->dbproc, i+1) + 1), (unsigned char *)p);
break;
default: //don't bind the field since we do not support it
qWarning("QTDSResult::reset: Unsupported type for field \"%s\"", dbcolname(d->dbproc, i+1));
break;
}
if (ret == SUCCEED) {
d->buffer[i * 2] = p;
ret = dbnullbind(d->dbproc, i+1, (DBINT*)(&d->buffer[i * 2 + 1]));
} else {
d->buffer[i * 2] = 0;
d->buffer[i * 2 + 1] = 0;
free(p);
}
if ((ret != SUCCEED) && (ret != -1)) {
setLastError(d->lastError);
return false;
}
}
setActive(true);
return true;
}
static int
transfer_data(BCPPARAMDATA params, DBPROCESS * dbsrc, DBPROCESS * dbdest)
{
char ls_command[256];
int col;
DBINT src_numcols = 0;
DBINT src_datlen;
typedef struct migcoldata
{
DBINT coltype;
DBINT collen;
DBINT nullind;
DBCHAR *data;
} MIGCOLDATA;
MIGCOLDATA **srcdata;
DBINT rows_read = 0;
DBINT rows_sent = 0;
DBINT rows_done = 0;
DBINT ret;
struct timeval start_time;
struct timeval end_time;
double elapsed_time;
struct timeval batch_start;
struct timeval batch_end;
double elapsed_batch = 0.0;
if (params.vflag) {
printf("\nStarting copy...\n");
}
if (params.tflag) {
sprintf(ls_command, "truncate table %s", params.ddbobject);
if (dbcmd(dbdest, ls_command) == FAIL) {
printf("dbcmd failed\n");
return FALSE;
}
if (dbsqlexec(dbdest) == FAIL) {
printf("dbsqlexec failed\n");
return FALSE;
}
if (dbresults(dbdest) == FAIL) {
printf("Error in dbresults\n");
return FALSE;
}
}
sprintf(ls_command, "select * from %s", params.sdbobject);
if (dbcmd(dbsrc, ls_command) == FAIL) {
printf("dbcmd failed\n");
return FALSE;
}
if (dbsqlexec(dbsrc) == FAIL) {
printf("dbsqlexec failed\n");
return FALSE;
}
if (NO_MORE_RESULTS != dbresults(dbsrc));
{
if (0 == (src_numcols = dbnumcols(dbsrc))) {
printf("Error in dbnumcols\n");
return FALSE;
}
}
if (bcp_init(dbdest, params.ddbobject, (char *) NULL, (char *) NULL, DB_IN) == FAIL) {
printf("Error in bcp_init\n");
return FALSE;
}
srcdata = (MIGCOLDATA **) malloc(sizeof(MIGCOLDATA *) * src_numcols);
for (col = 0; col < src_numcols; col++) {
srcdata[col] = (MIGCOLDATA *) malloc(sizeof(MIGCOLDATA));
memset(srcdata[col], '\0', sizeof(MIGCOLDATA));
srcdata[col]->coltype = dbcoltype(dbsrc, col + 1);
srcdata[col]->collen = dbcollen(dbsrc, col + 1);
switch (srcdata[col]->coltype) {
case SYBBIT:
srcdata[col]->data = malloc(sizeof(DBBIT));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, BITBIND, sizeof(DBBIT), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBBIT, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBINT1:
srcdata[col]->data = malloc(sizeof(DBTINYINT));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, TINYBIND, sizeof(DBTINYINT), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBINT1, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBINT2:
srcdata[col]->data = malloc(sizeof(DBSMALLINT));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, SMALLBIND, sizeof(DBSMALLINT), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBINT2, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBINT4:
srcdata[col]->data = malloc(sizeof(DBINT));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, INTBIND, sizeof(DBINT), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBINT4, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBFLT8:
srcdata[col]->data = malloc(sizeof(DBFLT8));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, FLT8BIND, sizeof(DBFLT8), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBFLT8, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBREAL:
srcdata[col]->data = malloc(sizeof(DBREAL));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, REALBIND, sizeof(DBREAL), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBREAL, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBMONEY:
srcdata[col]->data = malloc(sizeof(DBMONEY));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, MONEYBIND, sizeof(DBMONEY), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBMONEY, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBMONEY4:
srcdata[col]->data = malloc(sizeof(DBMONEY4));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, SMALLMONEYBIND, sizeof(DBMONEY4), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBMONEY4, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBDATETIME:
srcdata[col]->data = malloc(sizeof(DBDATETIME));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, DATETIMEBIND, sizeof(DBDATETIME), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBDATETIME, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBDATETIME4:
srcdata[col]->data = malloc(sizeof(DBDATETIME4));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, SMALLDATETIMEBIND, sizeof(DBDATETIME), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBDATETIME4, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBNUMERIC:
srcdata[col]->data = malloc(sizeof(DBNUMERIC));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, NUMERICBIND, sizeof(DBNUMERIC), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, sizeof(DBNUMERIC), NULL, 0, SYBNUMERIC, col + 1) ==
FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBDECIMAL:
srcdata[col]->data = malloc(sizeof(DBDECIMAL));
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, DECIMALBIND, sizeof(DBDECIMAL), (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, sizeof(DBDECIMAL), NULL, 0, SYBDECIMAL, col + 1) ==
FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
case SYBTEXT:
case SYBCHAR:
srcdata[col]->data = malloc(srcdata[col]->collen + 1);
if (srcdata[col]->data == (char *) NULL) {
printf("allocation error\n");
return FALSE;
}
dbbind(dbsrc, col + 1, NTBSTRINGBIND, srcdata[col]->collen + 1, (BYTE *) srcdata[col]->data);
dbnullbind(dbsrc, col + 1, &(srcdata[col]->nullind));
if (bcp_bind(dbdest, (BYTE *) srcdata[col]->data, 0, -1, NULL, 0, SYBCHAR, col + 1) == FAIL) {
printf("bcp_bind error\n");
return FALSE;
}
break;
}
}
gettimeofday(&start_time, 0);
while (dbnextrow(dbsrc) != NO_MORE_ROWS) {
rows_read++;
for (col = 0; col < src_numcols; col++) {
switch (srcdata[col]->coltype) {
case SYBBIT:
case SYBINT1:
case SYBINT2:
case SYBINT4:
case SYBFLT8:
case SYBREAL:
case SYBDATETIME:
case SYBDATETIME4:
case SYBMONEY:
case SYBMONEY4:
if (srcdata[col]->nullind == -1) { /* NULL data retrieved from source */
bcp_collen(dbdest, 0, col + 1);
} else {
bcp_collen(dbdest, -1, col + 1);
}
break;
case SYBNUMERIC:
if (srcdata[col]->nullind == -1) { /* NULL data retrieved from source */
bcp_collen(dbdest, 0, col + 1);
} else {
bcp_collen(dbdest, sizeof(DBNUMERIC), col + 1);
}
break;
case SYBDECIMAL:
if (srcdata[col]->nullind == -1) { /* NULL data retrieved from source */
bcp_collen(dbdest, 0, col + 1);
} else {
bcp_collen(dbdest, sizeof(DBDECIMAL), col + 1);
}
break;
case SYBTEXT:
case SYBCHAR:
if (srcdata[col]->nullind == -1) { /* NULL data retrieved from source */
bcp_collen(dbdest, 0, col + 1);
} else {
/*
* if there is zero length data, then the
* input data MUST have been all blanks,
* trimmed down to nothing by the bind
* type of NTBSTRINGBIND.
* so find out the source data length and
* re-set the data accordingly...
*/
if (strlen(srcdata[col]->data) == 0) {
src_datlen = dbdatlen(dbsrc, col + 1);
memset(srcdata[col]->data, ' ', src_datlen);
srcdata[col]->data[src_datlen] = '\0';
}
bcp_collen(dbdest, strlen(srcdata[col]->data), col + 1);
}
break;
}
}
if (bcp_sendrow(dbdest) == FAIL) {
fprintf(stderr, "bcp_sendrow failed. \n");
return FALSE;
} else {
rows_sent++;
if (rows_sent == params.batchsize) {
gettimeofday(&batch_start, 0);
ret = bcp_batch(dbdest);
gettimeofday(&batch_end, 0);
elapsed_batch = elapsed_batch +
((double) (batch_end.tv_sec - batch_start.tv_sec) +
((double) (batch_end.tv_usec - batch_start.tv_usec) / 1000000.00)
);
if (ret == -1) {
printf("bcp_batch error\n");
return FALSE;
} else {
rows_done += ret;
printf("%d rows successfully copied (total %d)\n", ret, rows_done);
rows_sent = 0;
}
}
}
}
if (rows_read) {
gettimeofday(&batch_start, 0);
ret = bcp_done(dbdest);
gettimeofday(&batch_end, 0);
elapsed_batch = elapsed_batch +
((double) (batch_end.tv_sec - batch_start.tv_sec) +
((double) (batch_end.tv_usec - batch_start.tv_usec) / 1000000.00)
);
if (ret == -1) {
fprintf(stderr, "bcp_done failed. \n");
return FALSE;
} else {
rows_done += ret;
}
}
gettimeofday(&end_time, 0);
elapsed_time = (double) (end_time.tv_sec - start_time.tv_sec) +
((double) (end_time.tv_usec - start_time.tv_usec) / 1000000.00);
if (params.vflag) {
printf("\n");
printf("rows read : %d\n", rows_read);
printf("rows written : %d\n", rows_done);
printf("elapsed time (secs) : %f\n", elapsed_time);
printf("rows per second : %f\n", rows_done / elapsed_time);
}
return TRUE;
}
static int onDataResponse(eio_req *req) {
v8::HandleScope scope;
data_callback_t *callbackData = (data_callback_t *) req->data;
if(req->result == FAIL){
Local<Value> argv[1];
argv[0] = v8::Exception::Error(v8::String::New("An error occurred executing that statement"));
callbackData->callback->Call(Context::GetCurrent()->Global(), 1, argv);
}
uint32_t rownum = 0;
bool err = false;
COL *columns, *pcol;
int ncols = 0;
v8::Local<v8::Array> results = v8::Array::New();
while(dbresults(callbackData->dbconn) != NO_MORE_RESULTS){
ncols = dbnumcols(callbackData->dbconn);
columns = (COL *) calloc(ncols, sizeof(struct COL));
for (pcol = columns; pcol - columns < ncols; pcol++) {
int i = pcol - columns + 1;
pcol->name = v8::String::New(dbcolname(callbackData->dbconn, i));
pcol->type = dbcoltype(callbackData->dbconn, i);
pcol->size = dbcollen(callbackData->dbconn, i);
if (SYBCHAR != pcol->type) {
pcol->size = dbwillconvert(pcol->type, SYBCHAR);
}
//todo: work out if I'm leaking
if((pcol->buffer = (void *) malloc(pcol->size + 1)) == NULL) {
err = true;
break;
}
}
if(err){
for (pcol = columns; pcol - columns < ncols; pcol++) {
free(pcol->buffer);
free(columns);
}
Local<Value> argv[1];
argv[0] = v8::Exception::Error(v8::String::New("Could not allocate memory for columns"));
callbackData->callback->Call(Context::GetCurrent()->Global(), 1, argv);
return 0;
}
for (pcol = columns; pcol - columns < ncols; pcol++) {
int i = pcol - columns + 1;
int binding = NTBSTRINGBIND;
// switch(pcol->type){
// case TINYBIND:
// case SMALLBIND:
// case INTBIND:
// case FLT8BIND:
// case REALBIND:
// case SMALLDATETIMEBIND:
// case MONEYBIND:
// case SMALLMONEYBIND:
// case BINARYBIND:
// case BITBIND:
// case NUMERICBIND:
// case DECIMALBIND:
// case BIGINTBIND:
// // all numbers in JS are doubles
// binding = REALBIND;
// break;
// }
if(dbbind(callbackData->dbconn, i, binding, pcol->size + 1, (BYTE*)pcol->buffer) == FAIL){
err = true;
}else if(dbnullbind(callbackData->dbconn, i, &pcol->status) == FAIL){
err = true;
}
}
if(err){
for (pcol = columns; pcol - columns < ncols; pcol++) {
free(pcol->buffer);
free(columns);
}
Local<Value> argv[1];
argv[0] = v8::Exception::Error(v8::String::New("Could not allocate memory for columns"));
callbackData->callback->Call(Context::GetCurrent()->Global(), 1, argv);
return 0;
}
int row_code;
while ((row_code = dbnextrow(callbackData->dbconn)) != NO_MORE_ROWS){
if(row_code == REG_ROW) {
v8::Local<v8::Object> tuple = v8::Object::New();
for (pcol = columns; pcol - columns < ncols; pcol++) {
if(pcol->status == -1){
tuple->Set(pcol->name, v8::Null());
continue;
}
switch(pcol->type){
case SQLINTN:
case SQLINT1:
case SQLINT2:
case SQLINT4:
case SQLINT8:
case SQLFLT8:
case SQLDATETIME:
case SQLDATETIM4:
case SQLBIT:
case SQLFLT4:
case SQLNUMERIC:
case SQLDECIMAL:
case SQLFLTN:
case SQLDATETIMN:
case 36:
case SQLCHAR:
case SQLVARCHAR:
case SQLTEXT:
tuple->Set(pcol->name, v8::String::New((char*) pcol->buffer));
break;
// case SQLINTN:
// case SQLINT1:
// case SQLINT2:
// case SQLINT4:
// case SQLINT8:
// case SQLFLT8:
// case SQLDATETIME:
// case SQLDATETIM4:
// case SQLBIT:
// case SQLFLT4:
// case SQLNUMERIC:
// case SQLDECIMAL:
// case SQLFLTN:
// case SQLDATETIMN:
// DBREAL val;
// memcpy(&val, pcol->buffer, pcol->size);
// tuple->Set(pcol->name, v8::Number::New((double)val));
break;
case SQLIMAGE:
case SQLMONEY4:
case SQLMONEY:
case SQLBINARY:
case SQLVARBINARY:
case SQLMONEYN:
case SQLVOID:
default:
printf("unsupported col type %d\n", pcol->type);
break;
}
}
results->Set(rownum++, tuple);
}
}
for (pcol = columns; pcol - columns < ncols; pcol++) {
free(pcol->buffer);
}
free(columns);
}
v8::Local<v8::Value> argv[2] = { Local<Value>::New(Null()), results };
callbackData->callback->Call(Context::GetCurrent()->Global(), 2, argv);
callbackData->callback.Dispose();
delete callbackData;
return 0;
}
/**
* Pivot the rows, creating a new resultset
*
* Call dbpivot() immediately after dbresults(). It calls dbnextrow() as long as
* it returns REG_ROW, transforming the results into a cross-tab report.
* dbpivot() modifies the metadata such that DB-Library can be used tranparently:
* retrieve the rows as usual with dbnumcols(), dbnextrow(), etc.
*
* @dbproc, our old friend
* @nkeys the number of left-edge columns to group by
* @keys an array of left-edge columns to group by
* @ncols the number of top-edge columns to group by
* @cols an array of top-edge columns to group by
* @func the aggregation function to use
* @val the number of the column to which @func is applied
*
* @returns the return code from the final call to dbnextrow().
* Success is normally indicated by NO_MORE_ROWS.
*/
RETCODE
dbpivot(DBPROCESS *dbproc, int nkeys, int *keys, int ncols, int *cols, DBPIVOT_FUNC func, int val)
{
enum { logalot = 1 };
struct pivot_t P, *pp;
struct agg_t input, *pout = NULL;
struct key_t *pacross;
struct metadata_t *metadata, *pmeta;
size_t i, nmeta = 0;
tdsdump_log(TDS_DBG_FUNC, "dbpivot(%p, %d,%p, %d,%p, %p, %d)\n", dbproc, nkeys, keys, ncols, cols, func, val);
if (logalot) {
char buffer[1024] = {'\0'}, *s = buffer;
const static char *names[2] = { "\tkeys (down)", "\n\tcols (across)" };
int *p = keys, *pend = p + nkeys;
for (i=0; i < 2; i++) {
const char *sep = "";
s += sprintf(s, "%s: ", names[i]);
for ( ; p < pend; p++) {
s += sprintf(s, "%s%d", sep, *p);
sep = ", ";
}
p = cols;
pend = p + ncols;
assert(s < buffer + sizeof(buffer));
}
tdsdump_log(TDS_DBG_FUNC, "%s\n", buffer);
}
memset(&input, 0, sizeof(input));
P.dbproc = dbproc;
if ((pp = tds_find(&P, pivots, npivots, sizeof(*pivots), pivot_key_equal)) == NULL ) {
pp = realloc(pivots, (1 + npivots) * sizeof(*pivots));
if (!pp)
return FAIL;
pivots = pp;
pp += npivots++;
} else {
agg_free(pp->output);
key_free(pp->across);
}
memset(pp, 0, sizeof(*pp));
if ((input.row_key.keys = calloc(nkeys, sizeof(*input.row_key.keys))) == NULL)
return FAIL;
input.row_key.nkeys = nkeys;
for (i=0; i < nkeys; i++) {
int type = dbcoltype(dbproc, keys[i]);
int len = dbcollen(dbproc, keys[i]);
assert(type && len);
col_init(input.row_key.keys+i, type, len);
if (FAIL == dbbind(dbproc, keys[i], bind_type(type), input.row_key.keys[i].len, col_buffer(input.row_key.keys+i)))
return FAIL;
if (FAIL == dbnullbind(dbproc, keys[i], &input.row_key.keys[i].null_indicator))
return FAIL;
}
if ((input.col_key.keys = calloc(ncols, sizeof(*input.col_key.keys))) == NULL)
return FAIL;
input.col_key.nkeys = ncols;
for (i=0; i < ncols; i++) {
int type = dbcoltype(dbproc, cols[i]);
int len = dbcollen(dbproc, cols[i]);
assert(type && len);
col_init(input.col_key.keys+i, type, len);
if (FAIL == dbbind(dbproc, cols[i], bind_type(type), input.col_key.keys[i].len, col_buffer(input.col_key.keys+i)))
return FAIL;
if (FAIL == dbnullbind(dbproc, cols[i], &input.col_key.keys[i].null_indicator))
return FAIL;
}
/* value */ {
int type = dbcoltype(dbproc, val);
int len = dbcollen(dbproc, val);
assert(type && len);
col_init(&input.value, type, len);
if (FAIL == dbbind(dbproc, val, bind_type(type), input.value.len, col_buffer(&input.value)))
return FAIL;
if (FAIL == dbnullbind(dbproc, val, &input.value.null_indicator))
return FAIL;
}
while ((pp->status = dbnextrow(dbproc)) == REG_ROW) {
/* add to unique list of crosstab columns */
if ((pacross = tds_find(&input.col_key, pp->across, pp->nacross, sizeof(*pp->across), key_equal)) == NULL ) {
pacross = realloc(pp->across, (1 + pp->nacross) * sizeof(*pp->across));
if (!pacross)
return FAIL;
pp->across = pacross;
pacross += pp->nacross++;
key_cpy(pacross, &input.col_key);
}
assert(pp->across);
if ((pout = tds_find(&input, pp->output, pp->nout, sizeof(*pp->output), agg_equal)) == NULL ) {
pout = realloc(pp->output, (1 + pp->nout) * sizeof(*pp->output));
if (!pout)
return FAIL;
pp->output = pout;
pout += pp->nout++;
if ((pout->row_key.keys = calloc(input.row_key.nkeys, sizeof(*pout->row_key.keys))) == NULL)
return FAIL;
key_cpy(&pout->row_key, &input.row_key);
if ((pout->col_key.keys = calloc(input.col_key.nkeys, sizeof(*pout->col_key.keys))) == NULL)
return FAIL;
key_cpy(&pout->col_key, &input.col_key);
col_init(&pout->value, input.value.type, input.value.len);
}
func(&pout->value, &input.value);
}
/* Mark this proc as pivoted, so that dbnextrow() sees it when the application calls it */
pp->dbproc = dbproc;
pp->dbresults_state = dbproc->dbresults_state;
dbproc->dbresults_state = pp->output < pout? _DB_RES_RESULTSET_ROWS : _DB_RES_RESULTSET_EMPTY;
/*
* Initialize new metadata
*/
nmeta = input.row_key.nkeys + pp->nacross;
metadata = calloc(nmeta, sizeof(*metadata));
assert(pp->across || pp->nacross == 0);
/* key columns are passed through as-is, verbatim */
for (i=0; i < input.row_key.nkeys; i++) {
assert(i < nkeys);
metadata[i].name = strdup(dbcolname(dbproc, keys[i]));
metadata[i].pacross = NULL;
col_cpy(&metadata[i].col, input.row_key.keys+i);
}
/* pivoted columms are found in the "across" data */
for (i=0, pmeta = metadata + input.row_key.nkeys; i < pp->nacross; i++) {
struct col_t col;
col_init(&col, SYBFLT8, sizeof(double));
assert(pmeta + i < metadata + nmeta);
pmeta[i].name = make_col_name(pp->across+i);
assert(pp->across);
pmeta[i].pacross = pp->across + i;
col_cpy(&pmeta[i].col, pp->nout? &pp->output[0].value : &col);
}
if (!reinit_results(dbproc->tds_socket, nmeta, metadata)) {
return FAIL;
}
return SUCCEED;
#if 0
for (pp->pout=pp->output; pp->pout < pp->output + pp->nout; pp->pout++) {
char name[256] = {0};
assert(pp->pout->col_key.keys[0].len < sizeof(name));
memset(name, '\0', sizeof(name));
memcpy(name, pp->pout->col_key.keys[0].s, pp->pout->col_key.keys[0].len),
printf("%5d %-30s %5d\n", pp->pout->row_key.keys[0].i,
name,
pp->pout->value.i );
}
exit(1);
#endif
}
static void
print_results(DBPROCESS *dbproc)
{
static const char empty_string[] = "";
static const char dashes[] = "----------------------------------------------------------------" /* each line is 64 */
"----------------------------------------------------------------"
"----------------------------------------------------------------"
"----------------------------------------------------------------";
struct METADATA *metadata = NULL, return_status;
struct DATA { char *buffer; int status; } *data = NULL;
struct METACOMP { int numalts; struct METADATA *meta; struct DATA *data; } **metacompute = NULL;
RETCODE erc;
int row_code;
int i, c, ret;
int iresultset;
int ncomputeids = 0, ncols = 0;
/*
* If using default column separator, we want columns to line up vertically,
* so we use blank padding (STRINGBIND).
* For any other separator, we use no padding.
*/
const int bindtype = (0 == strcmp(options.colsep, default_colsep))? STRINGBIND : NTBSTRINGBIND;
/*
* Set up each result set with dbresults()
* This is more commonly implemented as a while() loop, but we're counting the result sets.
*/
fprintf(options.verbose, "%s:%d: calling dbresults: OK\n", options.appname, __LINE__);
for (iresultset=1; (erc = dbresults(dbproc)) != NO_MORE_RESULTS; iresultset++) {
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbresults(), result set %d failed\n", options.appname, __LINE__, iresultset);
return;
}
if (options.pivot.func) {
const struct key_t *rk = &options.pivot.row_key, *ck = &options.pivot.col_key;
erc = dbpivot(dbproc, rk->nkeys, rk->keys, ck->nkeys, ck->keys,
options.pivot.func, options.pivot.val_col);
}
fprintf(options.verbose, "Result set %d\n", iresultset);
/* Free prior allocations, if any. */
for (c=0; c < ncols; c++) {
free(metadata[c].format_string);
free(data[c].buffer);
}
free(metadata);
metadata = NULL;
free(data);
data = NULL;
ncols = 0;
for (i=0; i < ncomputeids; i++) {
for (c=0; c < metacompute[i]->numalts; c++) {
free(metacompute[i]->meta[c].name);
free(metacompute[i]->meta[c].format_string);
}
free(metacompute[i]->meta);
free(metacompute[i]->data);
free(metacompute[i]);
}
free(metacompute);
metacompute = NULL;
ncomputeids = 0;
/*
* Allocate memory for metadata and bound columns
*/
fprintf(options.verbose, "Allocating buffers\n");
ncols = dbnumcols(dbproc);
metadata = (struct METADATA*) calloc(ncols, sizeof(struct METADATA));
assert(metadata);
data = (struct DATA*) calloc(ncols, sizeof(struct DATA));
assert(data);
/* metadata is more complicated only because there may be several compute ids for each result set */
fprintf(options.verbose, "Allocating compute buffers\n");
ncomputeids = dbnumcompute(dbproc);
if (ncomputeids > 0) {
metacompute = (struct METACOMP**) calloc(ncomputeids, sizeof(struct METACOMP*));
assert(metacompute);
}
for (i=0; i < ncomputeids; i++) {
metacompute[i] = (struct METACOMP*) calloc(ncomputeids, sizeof(struct METACOMP));
assert(metacompute[i]);
metacompute[i]->numalts = dbnumalts(dbproc, 1+i);
fprintf(options.verbose, "%d columns found in computeid %d\n", metacompute[i]->numalts, 1+i);
if (metacompute[i]->numalts > 0) {
fprintf(options.verbose, "allocating column %d\n", 1+i);
metacompute[i]->meta = (struct METADATA*) calloc(metacompute[i]->numalts, sizeof(struct METADATA));
assert(metacompute[i]->meta);
metacompute[i]->data = (struct DATA*) calloc(metacompute[i]->numalts, sizeof(struct DATA));
assert(metacompute[i]->data);
}
}
/*
* For each column, get its name, type, and size.
* Allocate a buffer to hold the data, and bind the buffer to the column.
* "bind" here means to give db-lib the address of the buffer we want filled as each row is fetched.
* TODO: Implement dbcoltypeinfo() for numeric/decimal datatypes.
*/
fprintf(options.verbose, "Metadata\n");
fprintf(options.verbose, "%-6s %-30s %-30s %-15s %-6s %-6s \n", "col", "name", "source", "type", "size", "varies");
fprintf(options.verbose, "%.6s %.30s %.30s %.15s %.6s %.6s \n", dashes, dashes, dashes, dashes, dashes, dashes);
for (c=0; c < ncols; c++) {
/* Get and print the metadata. Optional: get only what you need. */
char *name = dbcolname(dbproc, c+1);
metadata[c].name = strdup(name ? (const char *) name : empty_string);
name = dbcolsource(dbproc, c+1);
metadata[c].source = (name)? name : empty_string;
metadata[c].type = dbcoltype(dbproc, c+1);
metadata[c].size = dbcollen(dbproc, c+1);
assert(metadata[c].size != -1); /* -1 means indicates an out-of-range request*/
fprintf(options.verbose, "%6d %30s %30s %15s %6d %6d \n",
c+1, metadata[c].name, metadata[c].source, dbprtype(metadata[c].type),
metadata[c].size, dbvarylen(dbproc, c+1));
/*
* Build the column header format string, based on the column width.
* This is just one solution to the question, "How wide should my columns be when I print them out?"
*/
metadata[c].width = get_printable_size(metadata[c].type, metadata[c].size);
if (metadata[c].width < strlen(metadata[c].name))
metadata[c].width = strlen(metadata[c].name);
ret = set_format_string(&metadata[c], (c+1 < ncols)? options.colsep : "\n");
if (ret <= 0) {
fprintf(stderr, "%s:%d: asprintf(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
/*
* Bind the column to our variable.
* We bind everything to strings, because we want db-lib to convert everything to strings for us.
* If you're performing calculations on the data in your application, you'd bind the numeric data
* to C integers and floats, etc. instead.
*
* It is not necessary to bind to every column returned by the query.
* Data in unbound columns are simply never copied to the user's buffers and are thus
* inaccesible to the application.
*/
if (metadata[c].width < INT_MAX) {
data[c].buffer = calloc(1, 1 + metadata[c].width); /* allow for null terminator */
assert(data[c].buffer);
erc = dbbind(dbproc, c+1, bindtype, 0, (BYTE *) data[c].buffer);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
erc = dbnullbind(dbproc, c+1, &data[c].status);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbnullbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
} else {
/* We don't bind text buffers, but use dbreadtext instead. */
data[c].buffer = NULL;
}
}
/*
* Get metadata and bind the columns for any compute rows.
*/
for (i=0; i < ncomputeids; i++) {
fprintf(options.verbose, "For computeid %d:\n", 1+i);
for (c=0; c < metacompute[i]->numalts; c++) {
/* read metadata */
struct METADATA *meta = &metacompute[i]->meta[c];
int nby, iby;
BYTE *bylist;
char *colname, *bynames;
int altcolid = dbaltcolid(dbproc, i+1, c+1);
metacompute[i]->meta[c].type = dbalttype(dbproc, i+1, c+1);
metacompute[i]->meta[c].size = dbaltlen(dbproc, i+1, c+1);
/*
* Jump through hoops to determine a useful name for the computed column
* If the query says "compute count(c) by a,b", we get a "by list" indicating a & b.
*/
bylist = dbbylist(dbproc, c+1, &nby);
bynames = strdup("by (");
for (iby=0; iby < nby; iby++) {
char *s = NULL;
int ret = asprintf(&s, "%s%s%s", bynames, dbcolname(dbproc, bylist[iby]),
(iby+1 < nby)? ", " : ")");
if (ret < 0) {
fprintf(options.verbose, "Insufficient room to create name for column %d:\n", 1+c);
break;
}
free(bynames);
bynames = s;
}
if( altcolid == -1 ) {
colname = "*";
} else {
assert(0 < altcolid && altcolid <= dbnumcols(dbproc));
colname = metadata[--altcolid].name;
}
asprintf(&metacompute[i]->meta[c].name, "%s(%s)", dbprtype(dbaltop(dbproc, i+1, c+1)), colname);
assert(metacompute[i]->meta[c].name);
metacompute[i]->meta[c].width = get_printable_size(metacompute[i]->meta[c].type,
metacompute[i]->meta[c].size);
if (metacompute[i]->meta[c].width < strlen(metacompute[i]->meta[c].name))
metacompute[i]->meta[c].width = strlen(metacompute[i]->meta[c].name);
ret = set_format_string(meta, (c+1 < metacompute[i]->numalts)? options.colsep : "\n");
if (ret <= 0) {
free(bynames);
fprintf(stderr, "%s:%d: asprintf(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
fprintf(options.verbose, "\tcolumn %d is %s, type %s, size %d %s\n",
c+1, metacompute[i]->meta[c].name, dbprtype(metacompute[i]->meta[c].type),
metacompute[i]->meta[c].size, (nby > 0)? bynames : "");
free(bynames);
/* allocate buffer */
assert(metacompute[i]->data);
metacompute[i]->data[c].buffer = calloc(1, metacompute[i]->meta[c].width);
assert(metacompute[i]->data[c].buffer);
/* bind */
erc = dbaltbind(dbproc, i+1, c+1, bindtype, -1, (BYTE*) metacompute[i]->data[c].buffer);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbaltbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
}
}
fprintf(options.verbose, "\n");
fprintf(options.verbose, "Data\n");
if (!options.fquiet) {
/* Print the column headers to stderr to keep them separate from the data. */
for (c=0; c < ncols; c++) {
fprintf(options.headers, metadata[c].format_string, metadata[c].name);
}
/* Underline the column headers. */
for (c=0; c < ncols; c++) {
fprintf(options.headers, metadata[c].format_string, dashes);
}
}
/*
* Print the data to stdout.
*/
while ((row_code = dbnextrow(dbproc)) != NO_MORE_ROWS) {
switch (row_code) {
case REG_ROW:
for (c=0; c < ncols; c++) {
if (metadata[c].width == INT_MAX) { /* TEXT/IMAGE */
BYTE *p = dbdata(dbproc, c+1);
size_t len = dbdatlen(dbproc, c+1);
if (len == 0) {
fputs("NULL", stdout);
} else {
BYTE *pend = p + len;
switch(dbcoltype(dbproc, c+1)) {
case SYBTEXT:
if (fwrite(p, len, 1, stdout) != 1) {
perror("could not write to output file");
exit(EXIT_FAILURE);
}
break;
default: /* image, binary */
fprintf(stdout, "0x");
for (; p < pend; p++) {
printf("%02hx", (unsigned short int)*p);
}
break;
}
}
fprintf(stdout, metadata[c].format_string, ""); /* col/row separator */
continue;
}
switch (data[c].status) { /* handle nulls */
case -1: /* is null */
/* TODO: FreeTDS 0.62 does not support dbsetnull() */
fprintf(stdout, metadata[c].format_string, "NULL");
break;
case 0:
/* case >1 is datlen when buffer is too small */
default:
fprintf(stdout, metadata[c].format_string, data[c].buffer);
break;
}
}
break;
case BUF_FULL:
assert(row_code != BUF_FULL);
break;
case FAIL:
fprintf(stderr, "bsqldb: fatal error: dbnextrow returned FAIL\n");
assert(row_code != FAIL);
exit(EXIT_FAILURE);
break;
default: /* computeid */
fprintf(options.verbose, "Data for computeid %d\n", row_code);
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
char fmt[256] = "%-";
struct METADATA *meta = &metacompute[row_code-1]->meta[c];
/* left justify the names */
strcat(fmt, &meta->format_string[1]);
fprintf(options.headers, fmt, meta->name);
}
/* Underline the column headers. */
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
fprintf(options.headers, metacompute[row_code-1]->meta[c].format_string, dashes);
}
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
struct METADATA *meta = &metacompute[row_code-1]->meta[c];
struct DATA *data = &metacompute[row_code-1]->data[c];
switch (data->status) { /* handle nulls */
case -1: /* is null */
/* TODO: FreeTDS 0.62 does not support dbsetnull() */
fprintf(stdout, meta->format_string, "NULL");
break;
case 0:
/* case >1 is datlen when buffer is too small */
default:
fprintf(stdout, meta->format_string, data->buffer);
break;
}
}
}
}
/* Check return status */
if (!options.fquiet) {
fprintf(options.verbose, "Retrieving return status... ");
if (dbhasretstat(dbproc) == TRUE) {
fprintf(stderr, "Procedure returned %d\n", dbretstatus(dbproc));
} else {
fprintf(options.verbose, "none\n");
}
}
/*
* Get row count, if available.
*/
if (!options.fquiet) {
if (DBCOUNT(dbproc) > -1)
fprintf(stderr, "%d rows affected\n", DBCOUNT(dbproc));
else
fprintf(stderr, "@@rowcount not available\n");
}
/*
* Check return parameter values
*/
fprintf(options.verbose, "Retrieving output parameters... ");
if (dbnumrets(dbproc) > 0) {
for (i = 1; i <= dbnumrets(dbproc); i++) {
char parameter_string[1024];
return_status.name = dbretname(dbproc, i);
fprintf(stderr, "ret name %d is %s\n", i, return_status.name);
return_status.type = dbrettype(dbproc, i);
fprintf(options.verbose, "\n\tret type %d is %d", i, return_status.type);
return_status.size = dbretlen(dbproc, i);
fprintf(options.verbose, "\n\tret len %d is %d\n", i, return_status.size);
dbconvert(dbproc, return_status.type, dbretdata(dbproc, i), return_status.size,
SYBVARCHAR, (BYTE *) parameter_string, -1);
fprintf(stderr, "ret data %d is %s\n", i, parameter_string);
}
} else {
fprintf(options.verbose, "none\n");
}
} /* wend dbresults */
fprintf(options.verbose, "%s:%d: dbresults() returned NO_MORE_RESULTS (%d):\n", options.appname, __LINE__, erc);
}
void
print_results(DBPROCESS *dbproc)
{
static const char empty_string[] = "";
static const char dashes[] = "----------------------------------------------------------------" /* each line is 64 */
"----------------------------------------------------------------"
"----------------------------------------------------------------"
"----------------------------------------------------------------";
struct METADATA *metadata = NULL, return_status;
struct DATA { char *buffer; int status; } *data = NULL;
struct METACOMP { int numalts; struct METADATA *meta; struct DATA *data; } **metacompute = NULL;
RETCODE erc;
int row_code;
int i, c, ret;
int iresultset;
int ncomputeids = 0, ncols = 0;
/*
* Set up each result set with dbresults()
* This is more commonly implemented as a while() loop, but we're counting the result sets.
*/
fprintf(options.verbose, "%s:%d: calling dbresults OK:\n", options.appname, __LINE__);
for (iresultset=1; (erc = dbresults(dbproc)) != NO_MORE_RESULTS; iresultset++) {
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbresults(), result set %d failed\n", options.appname, __LINE__, iresultset);
return;
}
fprintf(options.verbose, "Result set %d\n", iresultset);
/* Free prior allocations, if any. */
fprintf(options.verbose, "Freeing prior allocations\n", iresultset);
for (c=0; c < ncols; c++) {
free(metadata[c].format_string);
free(data[c].buffer);
}
free(metadata);
metadata = NULL;
free(data);
data = NULL;
ncols = 0;
for (i=0; i < ncomputeids; i++) {
for (c=0; c < metacompute[i]->numalts; c++) {
free(metacompute[i]->meta[c].name);
free(metacompute[i]->meta[c].format_string);
}
free(metacompute[i]->meta);
free(metacompute[i]->data);
free(metacompute[i]);
}
free(metacompute);
metacompute = NULL;
ncomputeids = 0;
/*
* Allocate memory for metadata and bound columns
*/
fprintf(options.verbose, "Allocating buffers\n", iresultset);
ncols = dbnumcols(dbproc);
metadata = (struct METADATA*) calloc(ncols, sizeof(struct METADATA));
assert(metadata);
data = (struct DATA*) calloc(ncols, sizeof(struct DATA));
assert(data);
/* metadata is more complicated only because there may be several compute ids for each result set */
fprintf(options.verbose, "Allocating compute buffers\n", iresultset);
ncomputeids = dbnumcompute(dbproc);
if (ncomputeids > 0) {
metacompute = (struct METACOMP**) calloc(ncomputeids, sizeof(struct METACOMP*));
assert(metacompute);
}
for (i=0; i < ncomputeids; i++) {
metacompute[i] = (struct METACOMP*) calloc(ncomputeids, sizeof(struct METACOMP));
assert(metacompute[i]);
metacompute[i]->numalts = dbnumalts(dbproc, 1+i);
fprintf(options.verbose, "%d columns found in computeid %d\n", metacompute[i]->numalts, 1+i);
if (metacompute[i]->numalts > 0) {
fprintf(options.verbose, "allocating column %d\n", 1+i);
metacompute[i]->meta = (struct METADATA*) calloc(metacompute[i]->numalts, sizeof(struct METADATA));
assert(metacompute[i]->meta);
metacompute[i]->data = (struct DATA*) calloc(metacompute[i]->numalts, sizeof(struct DATA));
assert(metacompute[i]->data);
}
}
/*
* For each column, get its name, type, and size.
* Allocate a buffer to hold the data, and bind the buffer to the column.
* "bind" here means to give db-lib the address of the buffer we want filled as each row is fetched.
* TODO: Implement dbcoltypeinfo() for numeric/decimal datatypes.
*/
fprintf(options.verbose, "Metadata\n", iresultset);
fprintf(options.verbose, "%-6s %-30s %-30s %-15s %-6s %-6s \n", "col", "name", "source", "type", "size", "varys");
fprintf(options.verbose, "%.6s %.30s %.30s %.15s %.6s %.6s \n", dashes, dashes, dashes, dashes, dashes, dashes);
for (c=0; c < ncols; c++) {
int width;
/* Get and print the metadata. Optional: get only what you need. */
char *name = dbcolname(dbproc, c+1);
metadata[c].name = (name)? name : empty_string;
name = dbcolsource(dbproc, c+1);
metadata[c].source = (name)? name : empty_string;
metadata[c].type = dbcoltype(dbproc, c+1);
metadata[c].size = dbcollen(dbproc, c+1);
assert(metadata[c].size != -1); /* -1 means indicates an out-of-range request*/
fprintf(options.verbose, "%6d %30s %30s %15s %6d %6d \n",
c+1, metadata[c].name, metadata[c].source, dbprtype(metadata[c].type),
metadata[c].size, dbvarylen(dbproc, c+1));
/*
* Build the column header format string, based on the column width.
* This is just one solution to the question, "How wide should my columns be when I print them out?"
*/
width = get_printable_size(metadata[c].type, metadata[c].size);
if (width < strlen(metadata[c].name))
width = strlen(metadata[c].name);
ret = set_format_string(&metadata[c], (c+1 < ncols)? " " : "\n");
if (ret <= 0) {
fprintf(stderr, "%s:%d: asprintf(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
/*
* Bind the column to our variable.
* We bind everything to strings, because we want db-lib to convert everything to strings for us.
* If you're performing calculations on the data in your application, you'd bind the numeric data
* to C integers and floats, etc. instead.
*
* It is not necessary to bind to every column returned by the query.
* Data in unbound columns are simply never copied to the user's buffers and are thus
* inaccesible to the application.
*/
data[c].buffer = calloc(1, metadata[c].size);
assert(data[c].buffer);
erc = dbbind(dbproc, c+1, STRINGBIND, -1, (BYTE *) data[c].buffer);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
erc = dbnullbind(dbproc, c+1, &data[c].status);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbnullbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
}
/*
* Get metadata and bind the columns for any compute rows.
*/
for (i=0; i < ncomputeids; i++) {
fprintf(options.verbose, "For computeid %d:\n", 1+i);
for (c=0; c < metacompute[i]->numalts; c++) {
/* read metadata */
struct METADATA *meta = &metacompute[i]->meta[c];
int nbylist, ibylist;
BYTE *bylist;
char *colname, bynames[256] = "by (";
int altcolid = dbaltcolid(dbproc, i+1, c+1);
metacompute[i]->meta[c].type = dbalttype(dbproc, i+1, c+1);
metacompute[i]->meta[c].size = dbaltlen(dbproc, i+1, c+1);
/*
* Jump through hoops to determine a useful name for the computed column
* If the query says "compute count(c) by a,b", we get a "by list" indicating a & b.
*/
bylist = dbbylist(dbproc, c+1, &nbylist);
for (ibylist=0; ibylist < nbylist; ibylist++) {
int ret;
char *s = strchr(bynames, '\0');
int remaining = bynames + sizeof(bynames) - s;
assert(remaining > 0);
ret = snprintf(s, remaining, "%s%s", dbcolname(dbproc, bylist[ibylist]),
(ibylist+1 < nbylist)? ", " : ")");
if (ret <= 0) {
fprintf(options.verbose, "Insufficient room to create name for column %d:\n", 1+c);
break;
}
}
if( altcolid == -1 ) {
colname = "*";
} else {
colname = metadata[altcolid].name;
}
asprintf(&metacompute[i]->meta[c].name, "%s(%s)", dbprtype(dbaltop(dbproc, i+1, c+1)), colname);
assert(metacompute[i]->meta[c].name);
ret = set_format_string(meta, (c+1 < metacompute[i]->numalts)? " " : "\n");
if (ret <= 0) {
fprintf(stderr, "%s:%d: asprintf(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
fprintf(options.verbose, "\tcolumn %d is %s, type %s, size %d %s\n",
c+1, metacompute[i]->meta[c].name, dbprtype(metacompute[i]->meta[c].type), metacompute[i]->meta[c].size,
(nbylist > 0)? bynames : "");
/* allocate buffer */
assert(metacompute[i]->data);
metacompute[i]->data[c].buffer = calloc(1, metacompute[i]->meta[c].size);
assert(metacompute[i]->data[c].buffer);
/* bind */
erc = dbaltbind(dbproc, i+1, c+1, STRINGBIND, -1, metacompute[i]->data[c].buffer);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbaltbind(), column %d failed\n", options.appname, __LINE__, c+1);
return;
}
}
}
fprintf(options.verbose, "\n");
fprintf(options.verbose, "Data\n", iresultset);
/* Print the column headers to stderr to keep them separate from the data. */
for (c=0; c < ncols; c++) {
char fmt[256] = "%-";
/* left justify the names */
strcat(fmt, &metadata[c].format_string[1]);
fprintf(stderr, fmt, metadata[c].name);
}
/* Underline the column headers. */
for (c=0; c < ncols; c++) {
fprintf(stderr, metadata[c].format_string, dashes);
}
/*
* Print the data to stdout.
*/
while ((row_code = dbnextrow(dbproc)) != NO_MORE_ROWS) {
switch (row_code) {
case REG_ROW:
for (c=0; c < ncols; c++) {
switch (data[c].status) { /* handle nulls */
case -1: /* is null */
/* TODO: FreeTDS 0.62 does not support dbsetnull() */
fprintf(stdout, metadata[c].format_string, "NULL");
break;
case 0:
/* case >1 is datlen when buffer is too small */
default:
fprintf(stdout, metadata[c].format_string, data[c].buffer);
break;
}
}
break;
case BUF_FULL:
assert(row_code != BUF_FULL);
break;
default: /* computeid */
fprintf(options.verbose, "Data for computeid %d\n", row_code);
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
char fmt[256] = "%-";
struct METADATA *meta = &metacompute[row_code-1]->meta[c];
/* left justify the names */
strcat(fmt, &meta->format_string[1]);
fprintf(stderr, fmt, meta->name);
}
/* Underline the column headers. */
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
fprintf(stderr, metacompute[row_code-1]->meta[c].format_string, dashes);
}
for (c=0; c < metacompute[row_code-1]->numalts; c++) {
struct METADATA *meta = &metacompute[row_code-1]->meta[c];
struct DATA *data = &metacompute[row_code-1]->data[c];
switch (data->status) { /* handle nulls */
case -1: /* is null */
/* TODO: FreeTDS 0.62 does not support dbsetnull() */
fprintf(stdout, meta->format_string, "NULL");
break;
case 0:
/* case >1 is datlen when buffer is too small */
default:
fprintf(stdout, meta->format_string, data->buffer);
break;
}
}
}
}
/* Check return status */
fprintf(options.verbose, "Retrieving return status... ");
if (dbhasretstat(dbproc) == TRUE) {
fprintf(stderr, "Procedure returned %d\n", dbretstatus(dbproc));
} else {
fprintf(options.verbose, "none\n");
}
/*
* Get row count, if available.
*/
if (DBCOUNT(dbproc) > -1)
fprintf(stderr, "%d rows affected\n", DBCOUNT(dbproc));
/*
* Check return parameter values
*/
fprintf(options.verbose, "Retrieving output parameters... ");
if (dbnumrets(dbproc) > 0) {
for (i = 1; i <= dbnumrets(dbproc); i++) {
char parameter_string[1024];
return_status.name = dbretname(dbproc, i);
fprintf(stderr, "ret name %d is %s\n", i, return_status.name);
return_status.type = dbrettype(dbproc, i);
fprintf(options.verbose, "\n\tret type %d is %d", i, return_status.type);
return_status.size = dbretlen(dbproc, i);
fprintf(options.verbose, "\n\tret len %d is %d\n", i, return_status.size);
dbconvert(dbproc, return_status.type, dbretdata(dbproc, i), return_status.size,
SYBVARCHAR, (BYTE *) parameter_string, -1);
fprintf(stderr, "ret data %d is %s\n", i, parameter_string);
}
} else {
fprintf(options.verbose, "none\n");
}
} /* wend dbresults */
fprintf(options.verbose, "%s:%d: dbresults() returned NO_MORE_RESULTS (%d):\n", options.appname, __LINE__, erc);
}
int /* return count of SQL text rows */
print_results(DBPROCESS *dbproc)
{
static const char empty_string[] = "";
struct METADATA *metadata = NULL;
struct DATA { char *buffer; int status; } *data = NULL;
RETCODE erc;
int row_code;
int c, ret;
int iresultset;
int nrows=0, ncols=0, ncomputeids;
/*
* Set up each result set with dbresults()
*/
for (iresultset=1; (erc = dbresults(dbproc)) != NO_MORE_RESULTS; iresultset++) {
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbresults(), result set %d failed\n", options.appname, __LINE__, iresultset);
return -1;
}
if (SUCCEED != dbrows(dbproc)) {
return 0;
}
/* Free prior allocations, if any. */
for (c=0; c < ncols; c++) {
free(metadata[c].format_string);
free(data[c].buffer);
}
free(metadata);
metadata = NULL;
free(data);
data = NULL;
ncols = 0;
/*
* Allocate memory for metadata and bound columns
*/
ncols = dbnumcols(dbproc);
metadata = (struct METADATA*) calloc(ncols, sizeof(struct METADATA));
assert(metadata);
data = (struct DATA*) calloc(ncols, sizeof(struct DATA));
assert(data);
/* The hard-coded queries don't generate compute rows. */
ncomputeids = dbnumcompute(dbproc);
assert(0 == ncomputeids);
/*
* For each column, get its name, type, and size.
* Allocate a buffer to hold the data, and bind the buffer to the column.
* "bind" here means to give db-lib the address of the buffer we want filled as each row is fetched.
*/
for (c=0; c < ncols; c++) {
int width;
/* Get and print the metadata. Optional: get only what you need. */
char *name = dbcolname(dbproc, c+1);
metadata[c].name = (name)? name : (char*) empty_string;
name = dbcolsource(dbproc, c+1);
metadata[c].source = (name)? name : (char*) empty_string;
metadata[c].type = dbcoltype(dbproc, c+1);
metadata[c].size = dbcollen(dbproc, c+1);
assert(metadata[c].size != -1); /* -1 means indicates an out-of-range request*/
#if 0
fprintf(stderr, "%6d %30s %30s %15s %6d %6d \n",
c+1, metadata[c].name, metadata[c].source, dbprtype(metadata[c].type),
metadata[c].size, dbvarylen(dbproc, c+1));
#endif
/*
* Build the column header format string, based on the column width.
* This is just one solution to the question, "How wide should my columns be when I print them out?"
*/
width = get_printable_size(metadata[c].type, metadata[c].size);
if (width < strlen(metadata[c].name))
width = strlen(metadata[c].name);
ret = set_format_string(&metadata[c], (c+1 < ncols)? " " : "\n");
if (ret <= 0) {
fprintf(stderr, "%s:%d: asprintf(), column %d failed\n", options.appname, __LINE__, c+1);
return -1;
}
/*
* Bind the column to our variable.
* We bind everything to strings, because we want db-lib to convert everything to strings for us.
* If you're performing calculations on the data in your application, you'd bind the numeric data
* to C integers and floats, etc. instead.
*
* It is not necessary to bind to every column returned by the query.
* Data in unbound columns are simply never copied to the user's buffers and are thus
* inaccesible to the application.
*/
data[c].buffer = calloc(1, metadata[c].size);
assert(data[c].buffer);
erc = dbbind(dbproc, c+1, STRINGBIND, -1, (BYTE *) data[c].buffer);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbbind(), column %d failed\n", options.appname, __LINE__, c+1);
return -1;
}
erc = dbnullbind(dbproc, c+1, &data[c].status);
if (erc == FAIL) {
fprintf(stderr, "%s:%d: dbnullbind(), column %d failed\n", options.appname, __LINE__, c+1);
return -1;
}
}
/*
* Print the data to stdout.
*/
for (;(row_code = dbnextrow(dbproc)) != NO_MORE_ROWS; nrows++) {
switch (row_code) {
case REG_ROW:
for (c=0; c < ncols; c++) {
switch (data[c].status) { /* handle nulls */
case -1: /* is null */
fprintf(stderr, "defncopy: error: unexpected NULL row in SQL text\n");
break;
case 0: /* OK */
default: /* >1 is datlen when buffer is too small */
fprintf(stdout, "%s", data[c].buffer);
break;
}
}
break;
case BUF_FULL:
default:
fprintf(stderr, "defncopy: error: expected REG_ROW (%d), got %d instead\n", REG_ROW, row_code);
assert(row_code == REG_ROW);
break;
} /* row_code */
} /* wend dbnextrow */
fprintf(stdout, "\n");
} /* wend dbresults */
return nrows;
}
void MSSqlDatatable::update()
{
// clear.
this->clear();
# ifdef _FREETDS
DBPROCESS* proc = (DBPROCESS*)_proc;
// update.
uint const ncols = dbnumcols(proc);
struct COL
{
char *name;
char *buffer;
int type, size, status;
} *columns, *pcol;
if ((columns = (COL*)calloc(ncols, sizeof(struct COL))) == NULL) {
return;
}
RETCODE sta = 0;
rows_type& rows = this->_rows;
cols_type& cols = this->_cols;
cols.resize(ncols);
//Read metadata and bind.
for (pcol = columns; pcol - columns < ncols; pcol++) {
int c = (int)(pcol - columns + 1);
pcol->name = dbcolname(proc, c);
pcol->type = dbcoltype(proc, c);
pcol->size = dbcollen(proc, c);
// add cols.
cols[c - 1] = new variant_t(pcol->name, core::copy);
if (SYBCHAR != pcol->type) {
pcol->size = dbwillconvert(pcol->type, SYBCHAR);
}
if ((pcol->buffer = (char*)calloc(1, pcol->size + 1)) == NULL){
break;
}
sta = dbbind(proc,
c,
NTBSTRINGBIND,
pcol->size + 1,
(byte*)pcol->buffer);
if (sta == FAIL) {
break;
}
sta = dbnullbind(proc,
c,
&pcol->status);
if (sta == FAIL) {
break;
}
}
// Get rows.
while ((sta = dbnextrow(proc)) != NO_MORE_ROWS){
switch (sta) {
case REG_ROW:
{
DBMSqlDatatable::row_type *row = new DBMSqlDatatable::row_type;
row->resize(ncols);
for (pcol=columns; pcol - columns < ncols; ++pcol)
{
int c = (int)(pcol - columns + 1);
char const* buffer = pcol->status == -1 ? "" : pcol->buffer;
(*row)[c - 1] = new variant_t(buffer, core::copy);
}
rows.push_back(row);
} break;
}
}
/* free metadata and data buffers */
for (pcol=columns; pcol - columns < ncols; pcol++) {
free(pcol->buffer);
}
free(columns);
# endif
# ifdef _MSSQL
_RecordsetPtr& rcdset = *((_RecordsetPtr*)_proc);
usize const ncols = (usize const)rcdset->Fields->GetCount();
rows_type& rows = this->_rows;
cols_type& cols = this->_cols;
cols.resize(ncols);
// read cols.
for (uint idx = 0; idx < ncols; ++idx)
{
# ifdef NNT_DEBUG
try {
# endif
_bstr_t name = rcdset->Fields->GetItem((long)idx)->GetName();
cols[idx] = new variant_t((char const*)name, core::copy);
# ifdef NNT_DEBUG
} catch (_com_error& err) {
_bstr_t msg = err.ErrorMessage();
trace_msg((char const*)msg);
}
# endif
}
// read rows.
while (!rcdset->adoEOF)
{
row_type* row = new row_type;
row->resize(ncols);
for (uindex idx = 0; idx < ncols; ++idx)
{
# ifdef NNT_DEBUG
try {
# endif
_bstr_t val = rcdset->GetCollect((long)idx);
(*row)[idx] = new variant_t((char const*)val, core::copy);
# ifdef NNT_DEBUG
} catch (_com_error& err) {
_bstr_t msg = err.ErrorMessage();
trace_msg((char const*)msg);
}
# endif
}
rows.push_back(row);
rcdset->MoveNext();
}
# endif
}