OTL 4.Example 233 (#define OTL_ORA_MAP_STRINGS_TO_CHARZ, Oracle 8, 8i, 9i)

Example 233 (#define OTL_ORA_MAP_STRINGS_TO_CHARZ, Oracle 8, 8i, 9i)

This example demonstrates #define OTL_ORA_MAP_STRINGS_TO_CHARZ.

Source Code

#include <iostream>
using namespace std;

#include <stdio.h>

//#define OTL_ORA8 // Compile OTL 4.0/OCI8
//#define OTL_ORA9I // Compile OTL 4.0/OCI9i
#define OTL_ORA8I // Compile OTL 4.0/OCI8i
#define OTL_ORA_MAP_STRINGS_TO_CHARZ
#include <otlv4.h> // include the OTL 4.0 header file

otl_connect db; // connect object

void insert()
// insert rows into table
{ 
 otl_stream o(5, // buffer size
              "insert into test_tab values(:f1<int>,:f2<char[11]>)", 
                 // SQL statement
              db // connect object
             );
  o<<1<<"Name";
  o<<2<<"Name ";
  o<<3<<"Name  ";
}

void select()
{ 
 otl_stream i(5, // buffer size
              "select * from test_tab where f2=:f2<char[11]>",
                 // SELECT statement
              db // connect object
             ); 
   // create select stream
 
 int f1;
 char f2[31];

 i<<"Name"; // assigning :f2 = 'Name'
   // SELECT automatically executes when all input variables are
   // assigned. First portion of output rows is fetched to the buffer

 while(!i.eof()){ // while not end-of-data
  i>>f1>>f2;
  cout<<"f1="<<f1<<", f2='"<<f2<<"'"<<endl;
 }

}

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

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

  otl_cursor::direct_exec
   (
    db,
    "drop table test_tab",
    otl_exception::disabled // disable OTL exceptions
   ); // drop table

  otl_cursor::direct_exec
   (
    db,
    "create table test_tab(f1 number, f2 varchar2(10))"
    );  // create table

  cout<<"========= table with a VARCHAR2 column ========"<<endl;
  insert(); // insert records into table
  select(); // select records from table

  otl_cursor::direct_exec
   (
    db,
    "drop table test_tab",
    otl_exception::disabled // disable OTL exceptions
   ); // drop table

  otl_cursor::direct_exec
   (
    db,
    "create table test_tab(f1 number, f2 char(10))"
    );  // create table

  cout<<"========= table with a CHAR column ========"<<endl;
  insert(); // insert records into table
  select(); // select records from table

 }

 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

========= table with a VARCHAR2 column ========
f1=1, f2='Name'
========= table with a CHAR column ========
f1=1, f2='Name      '
f1=2, f2='Name      '
f1=3, f2='Name      '

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. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.