Re: Looking for examples of OCI call Oracle Stored Proc

From: Mark Tomlinson <msftmail_at_us.oracle.com>
Date: Mon, 19 Jul 1999 08:02:44 -0400
Message-ID: <379313E4.4CCEA5FD@NoPlace.Org>

Philip S Zhan wrote:

> The only material (I have) describe the OCI interface with
> Oracle Stored Procedure is the OCI Programming Guide. The
> guide has a brief description and a piece of incomplete
> example code. The example is not covering my case. There
> is no example in Oracle's demo package.
>
> Can someone point out some good resources (good OCI book with
> details) or examples.
>
> I have a stored procedure with an array of objects or a table
> of objects as its parameter. I am also trying to minimize the
> number of server round-trips. After describing the stored proc,
> I got confused with so many options to deal with its parameters:
> ArrayOfStruct? COR? etc..
>
> Philip
>

Name:

             OCI Basic Array Binding to PL/SQL Table Sample Code  Category:

             OCI
 Port:

             WIN32
 Description:

             A great simplification of the Oracle supplied CDEMO4. Uses obndra to bind an array of chars to a PL/SQL table. Note that it is not possible to bind PL/SQL

             tables of records, only PL/SQL tables of simple types like numbers or varchars.

/*

create or replace package test_pkg as
  type array is table of varchar2(20) index by binary_integer;   procedure test_proc(v_array out array); end;
/

create or replace package body test_pkg as   procedure test_proc(v_array out array) is     cursor c1 is select loc from dept;
  begin
    open c1;
    for i in 1..4 loop
      fetch c1 into v_array(i);
    end loop;
  end;
end;
/

*/

#include <stdio.h>
#include <memory.h>
#include <ociapr.h>

#pragma comment(lib, "d:\\orant\\oci73\\lib\\old\\ora73.lib")

#define VARCHAR2_TYPE            1
#define NUMBER_TYPE              2
#define INT_TYPE                 3
#define FLOAT_TYPE               4
#define STRING_TYPE              5
#define ROWID_TYPE              11
#define DATE_TYPE               12

Lda_Def lda;
Cda_Def cda;
ub1 hda[256];

#define ELEMENTS 4
#define ELEMENT_LEN 20

text v_str[ELEMENTS][ELEMENT_LEN];
int a_size = ELEMENTS;

void main()
{

        memset(hda,0,255);

        if (olog(&lda,hda,(text*)
"scott/tiger_at_exampledb",-1,0,-1,0,-1,OCI_LM_DEF))

        printf("Logon failed: %i\n", lda.rc);

        if (oopen(&cda,&lda,0,-1,-1,0,-1))
        printf("Open failed: %i\n", lda.rc);

        if (oparse(&cda,(text*) "begin test_pkg.test_proc(:str);
end;",-1,1,2))
        printf("Parse failed: %i\n", cda.rc);

        if (obndra(&cda,(text*) ":str",-1,(text*)
v_str,20,STRING_TYPE,-1,
        0,0,0,(ELEMENTS * ELEMENT_LEN),&a_size,
        0,-1,-1))
        printf("Binding failed: %i\n", cda.rc);

        if (oexec(&cda))
        printf("Execute failed: %i\n", cda.rc);

        printf("%s\n", v_str[0]);
        printf("%s\n", v_str[1]);
        printf("%s\n", v_str[2]);
        printf("%s\n", v_str[3]);

        if (ocan(&cda))
        printf("Cancel failed: %i\n", cda.rc);

        if (oclose(&cda))
        printf("Close failed: %i\n", lda.rc);

        if (ologof(&lda))
        printf("Logoff failed: %i\n", lda.rc);

} Received on Mon Jul 19 1999 - 07:02:44 CDT