int main(int argc, const char * argv[])
{
// insert code here...
// std::cout << "Hello, World!\n";
CppSQLite3DB db;
std::cout << "sqlite version: " << db.SQLiteVersion() << std::endl;
db.open("test.db");
db.execDML("create table emp(empno int, empname char(20));");
int nRows = db.execDML("insert into emp values (7, 'David Beckham');");
std::cout << nRows << " rows inserted " << std::endl;
return 0;
}
void testCppSQLite()
{
try
{
int i, fld;
time_t tmStart, tmEnd;
remove(gszFile);
CppSQLite3DB* db = getSQLiteDB();
cout << "SQLite Version: " << db->SQLiteVersion() << endl;
cout << endl << "Creating emp table" << endl;
db->execDML("create table emp(empno int, empname char(20));");
///////////////////////////////////////////////////////////////
// Execute some DML, and print number of rows affected by each one
///////////////////////////////////////////////////////////////
cout << endl << "DML tests" << endl;
int nRows = db->execDML("insert into emp values (7, 'David Beckham');");
cout << nRows << " rows inserted" << endl;
nRows = db->execDML(
"update emp set empname = 'Christiano Ronaldo' where empno = 7;");
cout << nRows << " rows updated" << endl;
nRows = db->execDML("delete from emp where empno = 7;");
cout << nRows << " rows deleted" << endl;
/////////////////////////////////////////////////////////////////
// Transaction Demo
// The transaction could just as easily have been rolled back
/////////////////////////////////////////////////////////////////
int nRowsToCreate(50000);
cout << endl << "Transaction test, creating " << nRowsToCreate;
cout << " rows please wait..." << endl;
tmStart = time(0);
db->execDML("begin transaction;");
for (i = 0; i < nRowsToCreate; i++)
{
char buf[128];
sprintf(buf, "insert into emp values (%d, 'Empname%06d');", i, i);
db->execDML(buf);
}
db->execDML("commit transaction;");
tmEnd = time(0);
////////////////////////////////////////////////////////////////
// Demonstrate CppSQLiteDB::execScalar()
////////////////////////////////////////////////////////////////
cout << db->execScalar("select count(*) from emp;")
<< " rows in emp table in ";
cout << tmEnd-tmStart << " seconds (that was fast!)" << endl;
////////////////////////////////////////////////////////////////
// Re-create emp table with auto-increment field
////////////////////////////////////////////////////////////////
cout << endl << "Auto increment test" << endl;
db->execDML("drop table emp;");
db->execDML(
"create table emp(empno integer primary key, empname char(20));");
cout << nRows << " rows deleted" << endl;
for (i = 0; i < 5; i++)
{
char buf[128];
sprintf(buf,
"insert into emp (empname) values ('Empname%06d');", i+1);
db->execDML(buf);
cout << " primary key: " << db->lastRowId() << endl;
}
///////////////////////////////////////////////////////////////////
// Query data and also show results of inserts into auto-increment field
//////////////////////////////////////////////////////////////////
cout << endl << "Select statement test" << endl;
CppSQLite3Query q = db->execQuery("select * from emp order by 1;");
for (fld = 0; fld < q.numFields(); fld++)
{
cout << q.fieldName(fld) << "(" << q.fieldDeclType(fld) << ")|";
}
cout << endl;
while (!q.eof())
{
cout << q.fieldValue(0) << "|";
cout << q.fieldValue(1) << "|" << endl;
q.nextRow();
}
///////////////////////////////////////////////////////////////
// SQLite's printf() functionality. Handles embedded quotes and NULLs
////////////////////////////////////////////////////////////////
cout << endl << "SQLite sprintf test" << endl;
CppSQLite3Buffer bufSQL;
bufSQL.format("insert into emp (empname) values (%Q);", "He's bad");
cout << (const char*)bufSQL << endl;
db->execDML(bufSQL);
bufSQL.format("insert into emp (empname) values (%Q);", NULL);
cout << (const char*)bufSQL << endl;
db->execDML(bufSQL);
////////////////////////////////////////////////////////////////////
// Fetch table at once, and also show how to
// use CppSQLiteTable::setRow() method
//////////////////////////////////////////////////////////////////
cout << endl << "getTable() test" << endl;
CppSQLite3Table t = db->getTable("select * from emp order by 1;");
for (fld = 0; fld < t.numFields(); fld++)
{
cout << t.fieldName(fld) << "|";
}
cout << endl;
for (int row = 0; row < t.numRows(); row++)
{
t.setRow(row);
for (int fld = 0; fld < t.numFields(); fld++)
{
if (!t.fieldIsNull(fld))
cout << t.fieldValue(fld) << "|";
else
cout << "NULL" << "|";
}
cout << endl;
}
////////////////////////////////////////////////////////////////////
// Test CppSQLiteBinary by storing/retrieving some binary data, checking
// it afterwards to make sure it is the same
//////////////////////////////////////////////////////////////////
cout << endl << "Binary data test" << endl;
db->execDML("create table bindata(desc char(10), data blob);");
unsigned char bin[256];
CppSQLite3Binary blob;
for (i = 0; i < sizeof bin; i++)
{
bin[i] = i;
}
blob.setBinary(bin, sizeof bin);
bufSQL.format("insert into bindata values ('testing', %Q);",
blob.getEncoded());
db->execDML(bufSQL);
cout << "Stored binary Length: " << sizeof bin << endl;
q = db->execQuery("select data from bindata where desc = 'testing';");
if (!q.eof())
{
blob.setEncoded((unsigned char*)q.fieldValue("data"));
cout << "Retrieved binary Length: "
<< blob.getBinaryLength() << endl;
}
const unsigned char* pbin = blob.getBinary();
for (i = 0; i < sizeof bin; i++)
{
if (pbin[i] != i)
{
cout << "Problem: i: ," << i << " bin[i]: "
<< pbin[i] << endl;
}
}
/////////////////////////////////////////////////////////
// Pre-compiled Statements Demo
/////////////////////////////////////////////////////////////
cout << endl << "Transaction test, creating " << nRowsToCreate;
cout << " rows please wait..." << endl;
db->execDML("drop table emp;");
db->execDML("create table emp(empno int, empname char(20));");
tmStart = time(0);
db->execDML("begin transaction;");
CppSQLite3Statement stmt = db->compileStatement(
"insert into emp values (?, ?);");
for (i = 0; i < nRowsToCreate; i++)
{
char buf[16];
sprintf(buf, "EmpName%06d", i);
stmt.bind(1, i);
stmt.bind(2, buf);
stmt.execDML();
stmt.reset();
}
db->execDML("commit transaction;");
tmEnd = time(0);
cout << db->execScalar("select count(*) from emp;")
<< " rows in emp table in ";
cout << tmEnd-tmStart << " seconds (that was even faster!)" << endl;
cout << endl << "End of tests" << endl;
}
catch (CppSQLite3Exception& e)
{
cerr << e.errorCode() << ":" << e.errorMessage() << endl;
}
}
