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INTRBASE_55
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EXAMPLES
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API
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API16T.C
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C/C++ Source or Header
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1998-10-18
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5KB
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166 lines
/*
* Program type: API
*
* Description:
* If run from a Windows 3.1 Client, the winevent program
* should be started before running this program and should
* be terminated upon the completion of this program.
* For other platforms, this program should be run in
* conjunction with api16.
*
* This Program adds some sales records, in order to trigger
* the event that api16 or winevent is waiting for.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "example.h"
#include <ibase.h>
int main (ARG(int, argc), ARG(char **, argv))
ARGLIST(int argc)
ARGLIST(char **argv)
{
struct {
short len;
char data [9];
} po_number;
short nullind = 0;
isc_stmt_handle stmt = NULL; /* statement handle */
isc_db_handle DB = NULL; /* database handle */
isc_tr_handle trans = NULL; /* transaction handle */
long status[20]; /* status vector */
XSQLDA ISC_FAR * sqlda;
char empdb[128];
char *delete_str =
"DELETE FROM sales WHERE po_number LIKE 'VNEW%'";
char *insert_str =
"INSERT INTO sales (po_number, cust_no, order_status, total_value) \
VALUES (?, 1015, 'new', 0)";
if (argc > 1)
strcpy(empdb, argv[1]);
else
strcpy(empdb, "employee.gdb");
if (isc_attach_database(status, 0, empdb, &DB, 0, NULL))
{
ERREXIT(status, 1)
}
if (isc_start_transaction(status, &trans, 1, &DB, 0, NULL))
{
ERREXIT(status, 1)
}
/* Allocate an input SQLDA for po_number in insert string. */
sqlda = (XSQLDA ISC_FAR *) malloc(XSQLDA_LENGTH(1));
sqlda->sqln = 1;
sqlda->sqld = 1;
sqlda->version = 1;
/* Allocate a statement. */
if (isc_dsql_allocate_statement(status, &DB, &stmt))
{
ERREXIT(status, 1)
}
/* Start out by deleting any existing records */
if (isc_dsql_execute_immediate(status, &DB, &trans, 0, delete_str,
1, NULL))
{
ERREXIT(status, 2)
}
if (isc_commit_transaction(status, &trans))
{
ERREXIT(status, 2)
}
if (isc_start_transaction(status, &trans, 1, &DB, 0, NULL))
{
ERREXIT(status, 3)
}
/* Insert three records in one transaction */
if (isc_dsql_prepare(status, &trans, &stmt, 0, insert_str, 1, NULL))
{
ERREXIT(status, 4)
}
if (isc_dsql_describe_bind(status, &stmt, 1, sqlda))
{
ERREXIT(status, 5)
}
sqlda->sqlvar[0].sqltype = SQL_VARYING + 1;
sqlda->sqlvar[0].sqllen = sizeof (po_number.data);
sqlda->sqlvar[0].sqldata = (char *) &po_number;
sqlda->sqlvar[0].sqlind = &nullind;
/* Add batch 1. */
po_number.len = strlen("VNEW1");
strncpy(po_number.data, "VNEW1", sizeof (po_number.data));
printf("api16t: Adding %s\n", po_number.data);
if (isc_dsql_execute(status, &trans, &stmt, 1, sqlda))
{
ERREXIT(status, 6)
}
po_number.len = strlen("VNEW2");
strncpy(po_number.data, "VNEW2", sizeof (po_number.data));
printf("api16t: Adding %s\n", po_number.data);
if (isc_dsql_execute(status, &trans, &stmt, 1, sqlda))
{
ERREXIT(status, 6)
}
po_number.len = strlen("VNEW3");
strncpy(po_number.data, "VNEW3", sizeof (po_number.data));
printf("api16t: Adding %s\n", po_number.data);
if (isc_dsql_execute(status, &trans, &stmt, 1, sqlda))
{
ERREXIT(status, 6)
}
/* This will fire the triggers for the first three records */
if (isc_commit_transaction(status, &trans))
{
ERREXIT(status, 7)
}
/* Add batch 2. */
if (isc_start_transaction(status, &trans, 1, &DB, 0, NULL))
{
ERREXIT(status, 8)
}
po_number.len = strlen("VNEW4");
strncpy(po_number.data, "VNEW4", sizeof (po_number.data));
printf("api16t: Adding %s\n", po_number.data);
if (isc_dsql_execute(status, &trans, &stmt, 1, sqlda))
{
ERREXIT(status, 9)
}
if (isc_dsql_free_statement(status, &stmt, DSQL_drop))
{
ERREXIT(status, 10)
}
/* This will fire the triggers for the fourth record */
if (isc_commit_transaction(status, &trans))
{
ERREXIT(status, 11)
}
isc_detach_database(status, &DB);
free(sqlda);
return 0;
}