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/*
* Test SQLBulkOperations()
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
void
printCurrentRow(HSTMT hstmt)
{
char buf[40];
int col;
SQLLEN ind;
int rc;
for (col = 1; col <= 2; col++)
{
rc = SQLGetData(hstmt, col, SQL_C_CHAR, buf, sizeof(buf), &ind);
if (!SQL_SUCCEEDED(rc))
{
print_diag("SQLGetData failed", SQL_HANDLE_STMT, hstmt);
exit(1);
}
if (ind == SQL_NULL_DATA)
strcpy(buf, "NULL");
printf("%s%s", (col > 1) ? "\t" : "", buf);
}
printf("\n");
}
#define BOOKMARK_SIZE 14
int main(int argc, char **argv)
{
int rc;
HSTMT hstmt = SQL_NULL_HSTMT;
int i;
SQLINTEGER colvalue1;
SQLINTEGER colvalue2;
SQLLEN indColvalue1;
SQLLEN indColvalue2;
char bookmark[BOOKMARK_SIZE];
SQLLEN bookmark_ind;
char saved_bookmarks[3][BOOKMARK_SIZE];
SQLLEN saved_bookmark_inds[3];
SQLINTEGER colvalues1[3];
SQLINTEGER colvalues2[3];
SQLLEN indColvalues1[3];
SQLLEN indColvalues2[3];
memset(bookmark, 0x7F, sizeof(bookmark));
memset(saved_bookmarks, 0xF7, sizeof(saved_bookmarks));
test_connect_ext("UpdatableCursors=1;Fetch=1");
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/*
* Initialize a table with some test data.
*/
printf("Creating test table bulkoperations_test\n");
rc = SQLExecDirect(hstmt, (SQLCHAR *) "CREATE TEMPORARY TABLE bulkoperations_test(i int4, orig serial)", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
rc = SQLExecDirect(hstmt, (SQLCHAR *) "INSERT INTO bulkoperations_test SELECT g, g FROM generate_series(1, 10) g", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
printf("Opening a cursor for update, and fetching 10 rows\n");
rc = SQLSetStmtAttr(hstmt, SQL_ATTR_CONCURRENCY,
(SQLPOINTER) SQL_CONCUR_ROWVER, 0);
CHECK_STMT_RESULT(rc, "SQLSetStmtAttr failed", hstmt);
rc = SQLSetStmtAttr(hstmt, SQL_ATTR_CURSOR_TYPE,
(SQLPOINTER) SQL_CURSOR_KEYSET_DRIVEN, 0);
CHECK_STMT_RESULT(rc, "SQLSetStmtAttr failed", hstmt);
/* Enable bookmarks */
rc = SQLSetStmtAttr(hstmt, SQL_ATTR_USE_BOOKMARKS,
(SQLPOINTER) SQL_UB_VARIABLE, SQL_IS_UINTEGER);
CHECK_STMT_RESULT(rc, "SQLSetStmtAttr failed", hstmt);
rc = SQLBindCol(hstmt, 0, SQL_C_VARBOOKMARK, &bookmark, sizeof(bookmark), &bookmark_ind);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLBindCol(hstmt, 1, SQL_C_LONG, &colvalue1, 0, &indColvalue1);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLBindCol(hstmt, 2, SQL_C_LONG, &colvalue2, 0, &indColvalue2);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLExecDirect(hstmt, (SQLCHAR *) "SELECT * FROM bulkoperations_test ORDER BY orig", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
for (i = 1; i <= 5; i++)
{
rc = SQLFetch(hstmt);
if (rc == SQL_NO_DATA)
break;
if (rc == SQL_SUCCESS)
printCurrentRow(hstmt);
else
{
print_diag("SQLFetch failed", SQL_HANDLE_STMT, hstmt);
exit(1);
}
/* Save row # 2's bookmark for fetch test */
if (i == 2)
{
memcpy(saved_bookmarks[0], bookmark, bookmark_ind);
saved_bookmark_inds[0] = bookmark_ind;
}
}
/* Do a positioned update and delete */
printf("\nUpdating result set\n");
colvalue1 += 100;
rc = SQLBulkOperations(hstmt, SQL_UPDATE_BY_BOOKMARK);
CHECK_STMT_RESULT(rc, "SQLBulkOperations failed", hstmt);
/* Have to use an absolute position after SQLBulkOperations. */
rc = SQLFetchScroll(hstmt, SQL_FETCH_ABSOLUTE, 8);
CHECK_STMT_RESULT(rc, "SQLFetchScroll failed", hstmt);
rc = SQLBulkOperations(hstmt, SQL_DELETE_BY_BOOKMARK);
CHECK_STMT_RESULT(rc, "SQLBulkOperations failed", hstmt);
/* Have to use an absolute position after SQLBulkOperations. */
rc = SQLFetchScroll(hstmt, SQL_FETCH_ABSOLUTE, 5);
CHECK_STMT_RESULT(rc, "SQLFetchScroll failed", hstmt);
/* Print the updated row */
printCurrentRow(hstmt);
/* remember its bookmark for later fetch */
memcpy(saved_bookmarks[1], bookmark, bookmark_ind);
saved_bookmark_inds[1] = bookmark_ind;
/* Perform an insertion */
colvalue1 = 1234;
colvalue2 = 5678;
rc = SQLBulkOperations(hstmt, SQL_ADD);
CHECK_STMT_RESULT(rc, "SQLBulkOperations failed", hstmt);
/* Remember the bookmark of the inserted row */
memcpy(saved_bookmarks[2], bookmark, bookmark_ind);
saved_bookmark_inds[2] = bookmark_ind;
/**** Test bulk fetch *****/
printf("Testing bulk fetch of original, updated, and inserted rows\n");
rc = SQLBindCol(hstmt, 0, SQL_C_VARBOOKMARK, saved_bookmarks, sizeof(bookmark), saved_bookmark_inds);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLBindCol(hstmt, 1, SQL_C_LONG, colvalues1, 0, indColvalues1);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLBindCol(hstmt, 2, SQL_C_LONG, colvalues2, 0, indColvalues2);
CHECK_STMT_RESULT(rc, "SQLBindCol failed", hstmt);
rc = SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_ARRAY_SIZE, (SQLPOINTER) 3, 0);
CHECK_STMT_RESULT(rc, "SQLSetStmtAttr failed", hstmt);
rc = SQLBulkOperations(hstmt, SQL_FETCH_BY_BOOKMARK);
CHECK_STMT_RESULT(rc, "SQLBulkOperations failed", hstmt);
printf ("row no #2: %d - %d\n", colvalues1[0], colvalues2[0]);
printf ("updated row: %d - %d\n", colvalues1[1], colvalues2[1]);
printf ("inserted row: %d - %d\n", colvalues1[2], colvalues2[2]);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
rc = SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_ARRAY_SIZE, (SQLPOINTER) 1, 0);
CHECK_STMT_RESULT(rc, "SQLSetStmtAttr failed", hstmt);
/**** See if the updates really took effect ****/
printf("\nQuerying the table again\n");
rc = SQLExecDirect(hstmt, (SQLCHAR *) "SELECT * FROM bulkoperations_test ORDER BY orig", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
print_result(hstmt);
/* Clean up */
test_disconnect();
return 0;
}
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