int main(void)
{
try
{
Environment::Initialize();
Connection con("db", "usr", "pwd");
Statement st(con);
st.Execute("select * from all_users");
Resultset rs = st.GetResultset();
while (rs++)
{
std::cout << "UserName:"******"username") << " Created:" << rs.Get<ostring>("created") << std::endl;
}
std::cout << "=> Total fetched rows : " << rs.GetCount() << std::endl;
}
catch (std::exception &ex)
{
std::cout << ex.what() << std::endl;
}
Environment::Cleanup();
return EXIT_SUCCESS;
}
void test_scrollable_cursor(void)
{
if (Environment::GetRuntimeVersion() > Oracle9iR1)
{
ocout << otext("\n>>>>> TEST SCROLLABLE CURSORS \n\n");
Statement st(con);
st.SetFetchMode(Statement::FetchScrollable);
st.Execute(otext("select table_name from user_tables where ")
otext("table_name like 'TEST_%' order by table_name"));
Resultset rs = st.GetResultset();
rs.Last();
ocout << otext("Total rows : ") << rs.GetCount() << oendl;
ocout << otext("... Go to row 1\n");
rs.First();
ocout << otext("table ") << rs.Get<ostring>(1) << oendl;
ocout << otext("... Enumerate from row 2 to row ") << rs.GetCount() << otext(" ") << oendl;
while (rs++)
{
ocout << otext("table ") << rs.Get<ostring>(1) << oendl;
}
ocout << otext("... Enumerate from row ") << rs.GetCount() - 1 << otext(" back to row 1") << oendl;
while (rs.Prev())
{
ocout << otext("table ") << rs.Get<ostring>(1) << oendl;
}
ocout << otext("... Go to the 3th row") << oendl;
rs.Seek(Resultset::SeekAbsolute, 3);
ocout << otext("table ") << rs.Get<ostring>(1) << oendl;
ocout << otext("... Fetch the next 2 rows") << oendl;
while (rs.GetCurrentRow() < 5 && rs++)
{
ocout << otext("table ") << rs.Get<ostring>(1) << oendl;
}
}
}
int main(void)
{
try
{
Environment::Initialize();
Connection con("db", "usr", "pwd");
Statement st(con);
st.SetFetchMode(Statement::FetchScrollable);
st.Execute("select rownum, 'Row ' || rownum from (select 1 from dual connect by level <= 65)");
Resultset rs = st.GetResultset();
rs.Last();
std::cout << "Total rows : " << rs.GetCount() << std::endl;
rs.First();
print_row(rs);
while (rs.Next())
{
print_row(rs);
}
while (rs.Prev())
{
print_row(rs);
}
rs.Seek(Resultset::SeekAbsolute, 30);
print_row(rs);
while (rs.GetCurrentRow() < 60 && rs.Next())
{
print_row(rs);
}
rs.Seek(Resultset::SeekRelative, -15);
print_row(rs);
}
catch (std::exception &ex)
{
std::cout << ex.what() << std::endl;
}
Environment::Cleanup();
return EXIT_SUCCESS;
}
void test_ref_cursor(void)
{
ocout << otext("\n>>>>> TEST REF CURSOR \n\n");
Statement stBind(con);
Statement st(con);
st.Prepare(otext("begin open :c for select * from test_fetch; end;"));
st.Bind(otext(":c"), stBind, BindInfo::Out);
st.ExecutePrepared();
Resultset rs = stBind.GetResultset();
while (rs++)
{
PrintProductFromQuery(rs);
}
ocout << oendl << rs.GetCount() << otext(" row(s) fetched") << oendl;
}
int main3(void) {
ofstream of;
of.open("out.tsv");
try {
Environment::Initialize();
Connection con("localhost", "scott", "tiger");
Statement st(con);
st.Execute("select * from APEX_040000.WWV_FLOW_STEP_ITEMS");
Resultset rs = st.GetResultset();
auto colCount = rs.GetColumnCount();
cout << colCount << '\n';
for (int i=1; i <=colCount; i++){
cout << rs.GetColumn(i).GetName() << "|" << rs.GetColumn(i).GetFullSQLType() << '\n';
}
while (rs++) {
for (int i = 1; i <= colCount; i++){
of << rs.Get<ostring>(i);
if (i < colCount){
of << "\t";
}
}
of << "\n";
}
std::cout << "=> Total fetched rows : " << rs.GetCount() << std::endl;
}
catch (std::exception &ex) {
std::cout << ex.what() << std::endl;
}
Environment::Cleanup();
of.close();
return EXIT_SUCCESS;
}
void test_fetch(void)
{
ocout << otext("\n>>>>> SIMPLE TEST FETCH WITH META DATA\n\n");
Statement st(con);
st.Execute(otext("select * from test_fetch"));
Resultset rs = st.GetResultset();
for (int i = 1, n = rs.GetColumnCount(); i <= n; i++)
{
ocout << otext("> Field : #") << i << otext(" - Name : ") << rs.GetColumn(i).GetName() << oendl;
}
ocout << oendl;
while (rs++)
{
PrintProductFromQuery(rs);
}
ocout << oendl << rs.GetCount() << otext(" row(s) fetched") << oendl;
}
void test_lob(void)
{
ocout << otext("\n>>>>> TEST LOB MANIPULATION\n\n");
Statement st(con);
st.Execute(otext("select code, content from test_lob where code=1 for update"));
Resultset rs = st.GetResultset();
while (rs++)
{
Clob clob = rs.Get<Clob>(2);
clob.Write(otext("today, "));
clob.Append(otext("i'm going to the cinema ! "));
clob.Seek(SeekSet, 0);
ocout << otext("> code : ") << rs.Get<int>(1) << otext(", content : ") << clob.Read(SizeString) << oendl;
}
con.Commit();
ocout << oendl << rs.GetCount() << otext(" row(s) fetched") << oendl;
}
void test_fetch_translate(void)
{
ocout << otext("\n>>>>> SIMPLE TEST FETCH WITH ROW TRANSLATION TO USER TYPE \n\n");
Statement st(con);
st.Execute(otext("select * from test_fetch"));
Resultset rs = st.GetResultset();
ocout << oendl;
while (rs++)
{
Product p;
if (rs.Get(p, FillProductFromQuery))
{
PrintProductFromObject(p);
}
}
ocout << oendl << rs.GetCount() << otext(" row(s) fetched") << oendl;
}
void test_returning(void)
{
ocout << otext("\n>>>>> TEST RETURNING CLAUSE \n\n");
Statement st(con);
st.Prepare(otext("update test_lob set code = code + 1 returning code, content into :i, :l"));
st.Register<int>(otext(":i"));
st.Register<Clob>(otext(":l"));
st.ExecutePrepared();
Resultset rs = st.GetResultset();
while (rs++)
{
Clob clob = rs.Get<Clob>(2);
clob.Append(otext("(modified)"));
clob.Seek(SeekSet, 0);
ocout << otext("> code : ") << rs.Get<int>(1) << otext(" - ") << clob.Read(static_cast<unsigned int>(clob.GetLength())) << oendl;
}
con.Commit();
ocout << oendl << rs.GetCount() << otext(" row(s) fetched") << oendl;
}
