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#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
static void
printhex(unsigned char *b, int len)
{
int i;
printf("hex: ");
for (i = 0; i < len; i++)
printf("%02X", b[i]);
}
int main(int argc, char **argv)
{
int rc;
HSTMT hstmt = SQL_NULL_HSTMT;
char param1[20] = { 1, 2, 3, 4, 5, 6, 7, 8 };
SQLLEN cbParam1;
char buf[100];
SQLLEN ind;
test_connect();
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/**** Insert a Large Object */
printf("inserting large object...\n");
rc = SQLPrepare(hstmt, (SQLCHAR *) "INSERT INTO lo_test_tab VALUES (1, ?)", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLPrepare failed", hstmt);
/* bind LO param */
cbParam1 = 8;
rc = SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT,
SQL_C_BINARY, /* value type */
SQL_LONGVARBINARY, /* param type */
200, /* column size */
0, /* dec digits */
param1, /* param value ptr */
0, /* buffer len */
&cbParam1 /* StrLen_or_IndPtr */);
CHECK_STMT_RESULT(rc, "SQLBindParameter failed", hstmt);
/* Execute */
rc = SQLExecute(hstmt);
CHECK_STMT_RESULT(rc, "SQLExecute failed", hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/**** Read it back ****/
printf("reading it back...\n");
SQLExecDirect(hstmt, (SQLCHAR *) "SELECT id, large_data FROM lo_test_tab WHERE id = 1", SQL_NTS);
rc = SQLFetch(hstmt);
CHECK_STMT_RESULT(rc, "SQLFetch failed", hstmt);
rc = SQLGetData(hstmt, 2, SQL_C_BINARY, buf, sizeof(buf), &ind);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
printhex(buf, (int) ind);
printf("\n");
/* Clean up */
test_disconnect();
return 0;
}
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