/*******************************************************************************
**                                                                        
** Source File Name = prepare.c  1.3                                      
**                                                                        
** Licensed Materials - Property of IBM                                   
**                                                                        
** (C) COPYRIGHT International Business Machines Corp. 1995, 1999
** All Rights Reserved.                                                   
**                                                                        
** US Government Users Restricted Rights - Use, duplication or            
** disclosure restricted by GSA ADP Schedule Contract with IBM Corp.      
**                                                                        
**                                                                        
**    PURPOSE :                                                           
** Example of preparing then repeatedly executing an SQL statement.
**                                                                        
** For more information about these samples see the README file.
**
** For more information on programming in CLI see the:
**     - "Building CLI Applications" section of the Application Building Guide, and the
**     - CLI Guide and Reference.
**
** For more information on the SQL language see the SQL Reference.
**
*******************************************************************************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlcli1.h>
#include "samputil.h"          /* Header file for CLI sample code */

/* For the Macintosh environment when generating 68K applications */
#ifdef DB268K
   /* Need to include ASLM for 68K applications */
   #include <LibraryManager.h>
#endif

/*
 Global Variables for user id and password.
 To keep samples simple, not a recommended practice.
*/
extern SQLCHAR server[SQL_MAX_DSN_LENGTH + 1] ;
extern SQLCHAR uid[MAX_UID_LENGTH + 1] ;
extern SQLCHAR pwd[MAX_PWD_LENGTH + 1] ;

/**  main  **/
int main( int argc, char * argv[] ) {

    SQLHANDLE henv, hdbc, hstmt ;
    SQLRETURN rc ;
/*--> SQLL1X08.SCRIPT */
    SQLCHAR * sqlstmt = ( SQLCHAR * )
       "SELECT deptname, location from org where division = ? " ;
/*<-- */
    struct {
       SQLINTEGER ind ;
       SQLCHAR  s[15] ;
       SQLINTEGER pad[512];
    } deptname, location, division ;
/* For the Macintosh environment when generating 68K applications */
#ifdef DB268K
   /* Before making any API calls for 68K environment, need to initialize the
      Library Manager */
   InitLibraryManager(0,kCurrentZone,kNormalMemory);
   atexit(CleanupLibraryManager);
#endif

    /* macro to initalize server, uid and pwd */
    INIT_UID_PWD ;

    /* allocate an environment handle */
    rc = SQLAllocHandle( SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    /* allocate a connect handle, and connect */
    rc = DBconnect( henv, &hdbc ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    rc = SQLAllocHandle( SQL_HANDLE_STMT, hdbc, &hstmt ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

/*--> */

    /* prepare statement for multiple use */
    rc = SQLPrepare(hstmt, sqlstmt, SQL_NTS);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    /* bind division to parameter marker in sqlstmt */
    rc = SQLBindParameter( hstmt,
                           1,
                           SQL_PARAM_INPUT,
                           SQL_C_CHAR,
                           SQL_VARCHAR,
                           10,
                           0,
                           division.s,
                           11,
                           NULL
                         ) ;
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    /* bind deptname to first column in the result set */
    rc = SQLBindCol(hstmt, 1, SQL_C_CHAR, (SQLPOINTER) deptname.s, 15,
                    &deptname.ind);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    rc = SQLBindCol(hstmt, 2, SQL_C_CHAR, (SQLPOINTER) location.s, 14,
                    &location.ind);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    printf("\nEnter Division Name or 'q' to quit:\n");
    printf("(Eastern, Western, Midwest, Corporate)\n");
    gets((char *)division.s);

    while (division.s[0] != 'q') {

        rc = SQLExecute(hstmt);
        CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

        printf("Departments in %s Division:\n", division.s);
        printf("DEPTNAME       Location\n");
        printf("-------------- -------------\n");

        while ( ( rc = SQLFetch( hstmt ) ) == SQL_SUCCESS )
           printf( "%-14.14s %-13.13s \n", deptname.s, location.s ) ;
        if ( rc != SQL_NO_DATA_FOUND )
           CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

        rc = SQLFreeStmt( hstmt, SQL_CLOSE ) ;
        CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

        printf("\nEnter Division Name or 'q' to quit:\n");
        printf("(Eastern, Western, Midwest, Corporate)\n");
        gets((char *)division.s);
    }

    rc = SQLFreeHandle( SQL_HANDLE_STMT, hstmt ) ;
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

/*<-- */

    rc = SQLEndTran( SQL_HANDLE_DBC, hdbc, SQL_ROLLBACK ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    printf( "\n>Disconnecting .....\n" ) ;
    rc = SQLDisconnect( hdbc ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    rc = SQLFreeHandle( SQL_HANDLE_DBC, hdbc ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    rc = SQLFreeHandle( SQL_HANDLE_ENV,  henv ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    return( SQL_SUCCESS ) ;

}                               /* end main */