/****************************************************************************
** (c) Copyright IBM Corp. 2007 All rights reserved.
**
** The following sample of source code ("Sample") is owned by International
** Business Machines Corporation or one of its subsidiaries ("IBM") and is
** copyrighted and licensed, not sold. You may use, copy, modify, and
** distribute the Sample in any form without payment to IBM, for the purpose of
** assisting you in the development of your applications.
**
** The Sample code is provided to you on an "AS IS" basis, without warranty of
** any kind. IBM HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR
** IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do
** not allow for the exclusion or limitation of implied warranties, so the above
** limitations or exclusions may not apply to you. IBM shall not be liable for
** any damages you suffer as a result of using, copying, modifying or
** distributing the Sample, even if IBM has been advised of the possibility of
** such damages.
*****************************************************************************
**
** SOURCE FILE NAME: dtudt.c
**
** SAMPLE: How to create, use, and drop user-defined distinct types.
**
** CLI FUNCTIONS USED:
** SQLAllocHandle -- Allocate Handle
** SQLExecDirect -- Execute a Statement Directly
** SQLFreeHandle -- Free Handle Resources
** SQLSetConnectAttr -- Set Connection Attributes
**
**
*****************************************************************************
**
** For more information on the sample programs, see the README file.
**
** For information on developing CLI applications, see the CLI Guide
** and Reference.
**
** For information on using SQL statements, see the SQL Reference.
**
** For the latest information on programming, building, and running DB2
** applications, visit the DB2 Information Center:
** http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/index.jsp
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlcli1.h>
#include "utilcli.h" /* Header file for CLI sample code */
int UDTCreate(SQLHANDLE);
int UDTUse(SQLHANDLE);
int UDTDrop(SQLHANDLE);
int main(int argc, char *argv[])
{
SQLRETURN cliRC = SQL_SUCCESS;
int rc = 0;
SQLHANDLE henv; /* environment handle */
SQLHANDLE hdbc; /* connection handle */
char dbAlias[SQL_MAX_DSN_LENGTH + 1];
char user[MAX_UID_LENGTH + 1];
char pswd[MAX_PWD_LENGTH + 1];
/* check the command line arguments */
rc = CmdLineArgsCheck1(argc, argv, dbAlias, user, pswd);
if (rc != 0)
{
return rc;
}
printf("\nTHIS SAMPLE SHOWS HOW TO CREATE, USE, AND DROP UDTs.\n");
/* initialize the CLI application by calling a helper
utility function defined in utilcli.c */
rc = CLIAppInit(dbAlias,
user,
pswd,
&henv,
&hdbc,
(SQLPOINTER)SQL_AUTOCOMMIT_ON);
if (rc != 0)
{
return rc;
}
rc = UDTCreate(hdbc);
rc = UDTUse(hdbc);
rc = UDTDrop(hdbc);
/* terminate the CLI application by calling a helper
utility function defined in utilcli.c */
rc = CLIAppTerm(&henv, &hdbc, dbAlias);
return rc;
} /* main */
/* create user-defined distinct types by issuing the
CREATE DISTINCT TYPE SQL statement */
int UDTCreate(SQLHANDLE hdbc)
{
SQLRETURN cliRC = SQL_SUCCESS;
int rc = 0;
SQLHANDLE hstmt; /* statement handle */
/* SQL statements to be executed */
SQLCHAR *stmt1 = (SQLCHAR *)
"CREATE DISTINCT TYPE UDT1 AS INTEGER WITH COMPARISONS";
SQLCHAR *stmt2 = (SQLCHAR *)
"CREATE DISTINCT TYPE UDT2 AS CHAR(2) WITH COMPARISONS";
SQLCHAR *stmt3 = (SQLCHAR *)
"CREATE DISTINCT TYPE UDT3 AS DECIMAL(7,2) WITH COMPARISONS";
printf("\n-----------------------------------------------------------");
printf("\nUSE THE CLI FUNCTIONS\n");
printf(" SQLSetConnectAttr\n");
printf(" SQLAllocHandle\n");
printf(" SQLExecDirect\n");
printf(" SQLFreeHandle\n");
printf("TO CREATE USER-DEFINED DISTINCT TYPES:\n");
/* set AUTOCOMMIT on */
cliRC = SQLSetConnectAttr(hdbc,
SQL_ATTR_AUTOCOMMIT,
(SQLPOINTER)SQL_AUTOCOMMIT_ON,
SQL_NTS);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* allocate a statement handle */
cliRC = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* create UDT1 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt1);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt1, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* create the UDT2 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt2);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt2, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* create the UDT3 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt3);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt3, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* free the statement handle */
cliRC = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
return rc;
} /* UDTCreate */
/* use user-defined distinct types */
int UDTUse(SQLHANDLE hdbc)
{
SQLRETURN cliRC = SQL_SUCCESS;
int rc = 0;
SQLHANDLE hstmt; /* statement handle */
/* SQL statements to be executed */
SQLCHAR *stmt1 = (SQLCHAR *)
"CREATE TABLE DTUDT (Col1 UDT1, Col2 UDT2, Col3 UDT3)";
SQLCHAR *stmt2 = (SQLCHAR *)
"INSERT INTO DTUDT "
" VALUES(CAST(77 AS UDT1), "
" CAST('ab' AS UDT2), "
" CAST(111.77 AS UDT3))";
SQLCHAR *stmt3 = (SQLCHAR *)"DROP TABLE DTUDT ";
printf("\n-----------------------------------------------------------");
printf("\nUSE THE CLI FUNCTIONS\n");
printf(" SQLSetConnectAttr\n");
printf(" SQLAllocHandle\n");
printf(" SQLExecDirect\n");
printf(" SQLFreeHandle\n");
printf("TO USE USER-DEFINED DISTINCT TYPES:\n");
/* set AUTOCOMMIT on */
cliRC = SQLSetConnectAttr(hdbc,
SQL_ATTR_AUTOCOMMIT,
(SQLPOINTER)SQL_AUTOCOMMIT_ON,
SQL_NTS);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* allocate a statement handle */
cliRC = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* create the test table */
printf("\n Directly execute the statement\n");
printf(" CREATE TABLE DTUDT (Col1 UDT1, Col2 UDT2, Col3 UDT3)\n");
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt1, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* insert values in the test table */
printf("\n Directly execute the statement\n");
printf(" INSERT INTO DTUDT VALUES\n");
printf(" VALUES(CAST(77 AS UDT1),\n");
printf(" CAST('ab' AS UDT2),\n");
printf(" CAST(111.77 AS UDT3))\n");
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt2, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* drop the test table */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt3);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt3, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* free the statement handle */
cliRC = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
return rc;
} /* UDTUse */
/* drop user-defined distinct types by issuing the
DROP DISTINCT TYPE SQL statement */
int UDTDrop(SQLHANDLE hdbc)
{
SQLRETURN cliRC = SQL_SUCCESS;
int rc = 0;
SQLHANDLE hstmt; /* statement handle */
/* SQL statements to be executed */
SQLCHAR *stmt1 = (SQLCHAR *)"DROP DISTINCT TYPE UDT1";
SQLCHAR *stmt2 = (SQLCHAR *)"DROP DISTINCT TYPE UDT2";
SQLCHAR *stmt3 = (SQLCHAR *)"DROP DISTINCT TYPE UDT3";
printf("\n-----------------------------------------------------------");
printf("\nUSE THE CLI FUNCTIONS\n");
printf(" SQLSetConnectAttr\n");
printf(" SQLAllocHandle\n");
printf(" SQLExecDirect\n");
printf(" SQLFreeHandle\n");
printf("TO DROP USER-DEFINED DISTINCT TYPES:\n");
/* set AUTOCOMMIT on */
cliRC = SQLSetConnectAttr(hdbc,
SQL_ATTR_AUTOCOMMIT,
(SQLPOINTER)SQL_AUTOCOMMIT_ON,
SQL_NTS);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* allocate a statement handle */
cliRC = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* drop UDT1 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt1);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt1, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* drop UDT2 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt2);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt2, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* drop UDT3 */
printf("\n Directly execute the statement\n");
printf(" %s\n", stmt3);
/* directly execute a statement */
cliRC = SQLExecDirect(hstmt, stmt3, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* free the statement handle */
cliRC = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
return rc;
} /* UDTDrop */