/****************************************************************************
** (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: tbcreate.c                                        
**                                                                        
** SAMPLE: How to create and drop tables
**
** 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 TbCreate(SQLHANDLE);
int TbDrop(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 AND DROP TABLES.\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;
  }

  /* create a table */
  rc = TbCreate(hdbc);
  /* drop a table */
  rc = TbDrop(hdbc);

  /* terminate the CLI application by calling a helper
     utility function defined in utilcli.c */
  rc = CLIAppTerm(&henv, &hdbc, dbAlias);

  return rc;
} /* main */

/* create a table */
int TbCreate(SQLHANDLE hdbc)
{
  SQLRETURN cliRC = SQL_SUCCESS;
  int rc = 0;
  SQLHANDLE hstmt; /* statement handle */

  SQLCHAR *stmt = (SQLCHAR *)"CREATE TABLE TBDEFINE(Col1 SMALLINT, "
                             "                      Col2 CHAR(7), "
                             "                      Col3 VARCHAR(7), "
                             "                      Col4 DEC(9,2), "
                             "                      Col5 DATE, "
                             "                      Col6 BLOB(5000), "
                             "                      Col7 CLOB(5000))";

  printf("\n-----------------------------------------------------------");
  printf("\nUSE THE CLI FUNCTIONS\n");
  printf("  SQLSetConnectAttr\n");
  printf("  SQLAllocHandle\n");
  printf("  SQLExecDirect\n");
  printf("  SQLFreeHandle\n");
  printf("TO SHOW HOW TO CREATE A TABLE:\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 table */
  printf("\n  Directly execute the statement\n");
  printf("    CREATE TABLE TBDEFINE(Col1 SMALLINT,\n");
  printf("                          Col2 CHAR(7),\n");
  printf("                          Col3 VARCHAR(7),\n");
  printf("                          Col4 DEC(9,2),\n");
  printf("                          Col5 DATE,\n");
  printf("                          Col6 BLOB(5000),\n");
  printf("                          Col7 CLOB(5000))\n");

  /* directly execute the statement */
  cliRC = SQLExecDirect(hstmt, stmt, 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;
} /* TbCreate */

/* drop a table */
int TbDrop(SQLHANDLE hdbc)
{
  SQLRETURN cliRC = SQL_SUCCESS;
  int rc = 0;
  SQLHANDLE hstmt; /* statement handle */

  SQLCHAR *stmt = (SQLCHAR *)"DROP TABLE TBDEFINE";

  printf("\n-----------------------------------------------------------");
  printf("\nUSE THE CLI FUNCTIONS\n");
  printf("  SQLSetConnectAttr\n");
  printf("  SQLAllocHandle\n");
  printf("  SQLExecDirect\n");
  printf("  SQLFreeHandle\n");
  printf("TO SHOW HOW TO DROP A TABLE:\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 the table */
  printf("\n  Directly execute the statement\n");
  printf("    %s\n", stmt);

  /* directly execute the statement */
  cliRC = SQLExecDirect(hstmt, stmt, 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;
} /* TbDrop */