#ifdef RCSID
static char *RCSid = 
   "$Header: oci25.c 29-may-97.19:14:54 ehayes Exp $ ";
   "$Header: oci25.c 22-aug-97.17:25:11 ehayes Exp $ ";
#endif /* RCSID */

/* Copyright (c) 1995, 1997 by Oracle Corporation */
/* Copyright (c) 1995, 1996, 1997 by Oracle Corporation */
/*
   NAME
     oci25.c
   DESCRIPTION
     Demo program for A22400 OCI Techniques White Paper
     Tests DDL operations
   MODIFIED   (MM/DD/YY)
    ehayes     05/29/97 -  Fix olint errors
    ehayes     08/22/97 -
    dchatter   07/15/96 -  hda is a ub4 array to prevent bus error
    vraghuna   03/01/95 -  Creation
*/
/*
 * Name:        oci25.c 
 *
 * Description: This program illustrates how to do DDL with oparse
 *
 * Based on:    <nothing>
 * Changes:     <none - base revision>
 *
 * Setup:       Run corresponding ociXX.sql before running this program.
 *              Link program and run it.
 *              Program requires NO arguments
 *
 *                           oci25 <return>
 *
 * OCI Calls used:
 *
 *      Phase         OCI Call           Notes
 *      ------------------------------------------------------------------
 *      Login     -   olog               Use instead of orlon as of 7.2
 *      Open      -   oopen
 *      Parse     -   oparse             does the DDL for us 
 *      Bind      -   none 
 *      Describe  -   none
 *      Define    -   none
 *      Execute   -   none
 *      Fetch     -   none
 *      Close     -   oclose
 *      Logoff    -   olof
 * 
 * This program is for educational purposes.
 *      
 */

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>

#include <oratypes.h>
/* LDA and CDA struct declarations */
#include <ocidfn.h>
#ifdef __STDC__
#include <ociapr.h>
#else
#include <ocikpr.h>
#endif
/* demo constants and structs */
#include <ocidem.h>


/* oparse flags */
#define  DEFER_PARSE        1
#define  NATIVE             1
#define  VERSION_7          2

/* exit flags */
#define OCI_EXIT_FAILURE 1
#define OCI_EXIT_SUCCESS 0

Lda_Def lda;                                                   /* login area */
ub4     hda[HDA_SIZE/sizeof(ub4)];                              /* host area */
Cda_Def cda;                                                  /* cursor area */

/* Function prototypes */
void logon ();
void logoff ();
void setup();
void err_report();
void dump_data();
void do_exit();
void do_describe();

/* SQL statement used in this program */

text *sqlstm1 = (text *)"CREATE TABLE test1 (col1 number)";
text *sqlstm2 = (text *)"CREATE TABLE test2 (col1 number)";
text *sqlstm3 = (text *)"CREATE TABLE test3 (col1 number)";

main(argc, argv)
eword argc;
text **argv;
{

  logon();                                       /* logon to Oracle database */

  setup();                                          /* prepare sql statement */

  logoff();                                        /* logoff Oracle database */

  do_exit(OCI_EXIT_SUCCESS);

}

/* 
 * Function: setup
 *
 * Description: This routine does the necessary setup to execute the SQL
 *              statement. Specifically, it does the open, parse, bind and
 *              define phases as needed.
 *
 */
void setup()
{

  if (oopen(&cda, &lda, (text *) 0, -1, -1, (text *) 0, -1))         /* open */
  {
    err_report(&cda);
    do_exit(OCI_EXIT_FAILURE);
  }

/* try creating test1 with a deferred parse but no execute */

  if (oparse(&cda, sqlstm1, (sb4) -1, DEFER_PARSE,                 /* parse */
               (ub4) VERSION_7))
  {
    err_report(&cda);
    do_exit(OCI_EXIT_FAILURE);
  }

/* try creating test2 with a non-deferred parse */

  if (oparse(&cda, sqlstm2, (sb4) -1, 0,                           /* parse */
               (ub4) VERSION_7))
  {
    err_report(&cda);
    do_exit(OCI_EXIT_FAILURE);
  }

/* try creating test3 with a deferred parse AND execute */

  if (oparse(&cda, sqlstm3, (sb4) -1, DEFER_PARSE,                 /* parse */
               (ub4) VERSION_7))
  {
    err_report(&cda);
    do_exit(OCI_EXIT_FAILURE);
  }

  if (oexec(&cda))
  {
    err_report(&cda);
    do_exit(OCI_EXIT_FAILURE);
  }

}

/* 
 * Function: err_report
 *
 * Description: This routine prints out the most recent OCI error
 *
 */
void err_report(cursor)
Cda_Def *cursor;
{
    sword n;
    text msg[512];                      /* message buffer to hold error text */

    if (cursor->fc > 0)
      printf("\n-- ORACLE error when processing OCI function %s \n\n", 
            oci_func_tab[cursor->fc]);
    else
      printf("\n-- ORACLE error\n");
 
    n = (sword)oerhms(&lda, cursor->rc, msg, (sword) sizeof msg);
    fprintf(stderr, "%s\n", msg);

}

/* 
 * Function: do_exit
 *
 * Description: This routine exits with a status
 *
 */
void do_exit(status)
eword status;
{

  if (status == OCI_EXIT_FAILURE)
     printf("\n Exiting with FAILURE status %d\n", status);
  else 
     printf("\n Exiting with SUCCESS status %d\n", status);
     
  exit(status);
}

/* 
 * Function: login
 *
 * Description: This routine logs on onto the database as OCITEST/OCITEST
 *
 */
void logon()
{
    
  if (olog(&lda, (ub1 *)hda, (text *)"OCITEST", -1, (text *)"OCITEST", -1, 
	   (text *)0, -1, (ub4)OCI_LM_DEF))
  {
    err_report((Cda_Def *)&lda);
    exit(OCI_EXIT_FAILURE);
  }

  printf("\n Connected to ORACLE as ocitest\n");

}

/* 
 * Function: logoff
 *
 * Description: This routine closes out any cursors and logs off the database
 *
 */
void logoff()
{

  if (oclose(&cda))                                          /* close cursor */
  {
    fprintf(stderr, "Error closing cursor 1.\n");
    do_exit(OCI_EXIT_FAILURE);
  }

  if (ologof(&lda))                                  /* log off the database */
  {
    fprintf(stderr, "Error on disconnect.\n");
    do_exit(OCI_EXIT_FAILURE);
  }

}