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/*
* Test SQLColAttribute
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
static void
runtest(char *extra_conn_options)
{
int rc;
HSTMT hstmt = SQL_NULL_HSTMT;
SQLUSMALLINT i;
SQLSMALLINT numcols;
printf("Running tests with %s...\n", extra_conn_options);
/* The behavior of these tests depend on the UnknownSizes parameter */
test_connect_ext(extra_conn_options);
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/*
* Get column attributes of a simple query.
*/
printf("Testing SQLColAttribute...\n");
rc = SQLExecDirect(hstmt,
(SQLCHAR *) "SELECT '1'::int AS intcol, 'foobar'::text AS textcol, 'varchar string'::varchar as varcharcol, ''::varchar as empty_varchar_col, 'varchar-5-col'::varchar(5) as varchar5col, '5 days'::interval day to second",
SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
rc = SQLNumResultCols(hstmt, &numcols);
CHECK_STMT_RESULT(rc, "SQLNumResultCols failed", hstmt);
for (i = 1 ; i <= numcols; i++)
{
char buffer[64];
SQLLEN number;
rc = SQLColAttribute(hstmt, i, SQL_DESC_LABEL, buffer, sizeof(buffer), NULL, NULL);
CHECK_STMT_RESULT(rc, "SQLColAttribute failed", hstmt);
printf("\n-- Column %d: %s --\n", i, buffer);
rc = SQLColAttribute(hstmt, i, SQL_DESC_OCTET_LENGTH, NULL, SQL_IS_INTEGER, NULL, &number);
CHECK_STMT_RESULT(rc, "SQLColAttribute failed", hstmt);
printf("SQL_DESC_OCTET_LENGTH: %d\n", (int) number);
rc = SQLColAttribute(hstmt, i, SQL_DESC_TYPE_NAME, buffer, sizeof(buffer), NULL, NULL);
CHECK_STMT_RESULT(rc, "SQLColAttribute failed", hstmt);
printf("SQL_DESC_TYPE_NAME: %s\n", buffer);
}
/* Clean up */
test_disconnect();
}
int main(int argc, char **argv)
{
/*
* The output of these tests depend on the UnknownSizes and
* MaxVarcharSize parameters
*/
// runtest("UnknownSizes=-1;MaxVarcharSize=100"); meaningless
runtest("UnknownSizes=0;MaxVarcharSize=100");
runtest("UnknownSizes=1;MaxVarcharSize=100");
runtest("UnknownSizes=2;MaxVarcharSize=100");
// runtest("UnknownSizes=100;MaxVarcharSize=100"); meaningless
return 0;
}
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