OTL 4.0, Example 52 (PL/SQL table of DATEs as parameter, Oracle 8)

Example 52 (PL/SQL table of DATEs as parameter, Oracle 8)

This example demonstrates how to use OTL template PL/SQL table containers for reading/writing PL/SQL tables of DATEs from/to the otl_stream.

Source Code

#include <iostream>
using namespace std;

#include <stdio.h>

#define OTL_ORA8 // Compile OTL 4.0/OCI8
#include <otlv4.h> // include the OTL 4.0 header file

otl_connect db; // connect object

void plsql(void)
{ 
 otl_stream s(1, // buffer size needs to be set to 1 in this case
                "begin "
                "  pkg_test.prc_test(:v<int,in>, :t2<timestamp,out[200]>); "
               "end;",
              db // connect object
             );

 s.set_commit(0); // Since there is no transactions, unset the stream auto-commit

 otl_datetime_tab<200> t2; // PL/SQL table of otl_datetime[200]

 s<<7; // assign :v = 7
 s>>t2; // read :t2 from the stream.

 cout<<endl<<endl<<"T2_Len="<<t2.len()<<endl;
 for(int j=0;j<t2.len();++j)
  if(t2.is_null(j))
   cout<<"T2["<<j<<"]=NULL"<<endl;
  else
   cout<<"T2["<<j<<"]="<<t2.v[j].month
       <<"/"<<t2.v[j].day
       <<"/"<<t2.v[j].year
       <<" "<<t2.v[j].hour
       <<":"<<t2.v[j].minute
       <<":"<<t2.v[j].second
       <<endl;

}


int main()
{
 otl_connect::otl_initialize(); // initialize OCI environment
 try{

  db.rlogon("scott/tiger"); // connect to Oracle

  otl_cursor::direct_exec
   (db,
    "CREATE OR REPLACE PACKAGE pkg_test IS "
    "  TYPE my_date_table IS TABLE OF DATE INDEX BY BINARY_INTEGER; "
    " "
    "  PROCEDURE prc_test(v IN NUMBER, v2 OUT my_date_table); "
    " "
    "END; "
  );

  otl_cursor::direct_exec
   (db,
    "CREATE OR REPLACE PACKAGE BODY pkg_test IS "
    " "
    "  PROCEDURE prc_test(v IN NUMBER, v2 OUT my_date_table) "
    "  IS "
    "  BEGIN "
    "    FOR i IN 1..v LOOP "
    "      v2(i) := SYSDATE-i; "
    "    END LOOP; "
    "  END; "
    "   "
    "END; "
  );


  plsql();

 }

 catch(otl_exception& p){ // intercept OTL exceptions
  cerr<<p.msg<<endl; // print out error message
  cerr<<p.stm_text<<endl; // print out SQL that caused the error
  cerr<<p.var_info<<endl; // print out the variable that caused the error
 }

 db.logoff(); // disconnect from Oracle

 return 0;

}

Output

T2_Len=7
T2[0]=2/29/2000 15:40:33
T2[1]=2/28/2000 15:40:33
T2[2]=2/27/2000 15:40:33
T2[3]=2/26/2000 15:40:33
T2[4]=2/25/2000 15:40:33
T2[5]=2/24/2000 15:40:33
T2[6]=2/23/2000 15:40:33

Examples Contents Go Home

Permission to use, copy, modify and redistribute this document for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies.