Hi,
I am new to PostgreSQL and tried using the libpq C library. I can read
a test table using PQgetvalue for text format, i.e. format = 0.
However, when I experiment with using binary output format, I was unable
to read anything else except result set fiend that is in char(x),
varchar(x), i.e., character string data.
What have I done wrong?
int * pId; LPSTR pszName; double * pSalary;
PGresult *pResult = PQexecParams(m_pConn, (LPCTSTR)strSelect, nParams, parmTypes, paramValues,
parmLengths,parmFormats, 1);
pId = (int *)PQgetvalue(pResult, row, 0); pszName = (LPSTR)PQgetvalue(pResult, row, 1); pSalary = (double
*)PQgetvalue(pResult,row, 6);
printf("id: %d name: %s salary: %f", *pId, pszName, *pSalary);
What I got is as follow:
+ + + printing resultset, 2 rows, 8 columns
id: 167772160 name: Amy Who salary: 0.000000
id: 16777216 name: David Smith salary: 0.000000
Which supposed to return:
id: 10 name: Amy Who salary: 150000.00
id: 1 name: David Smith salary: 350000.00
Any help is greatly appreciated!
Jeff
