# OTL 4.0, Example 259 (#define OTL_THROWS_ON_SQL_SUCCESS_WITH_INFO, ODBC, MS SQL Server)

This example demonstrates #define OTL_THROWS_ON_SQL_SUCCESS_WITH_INFO in a combination with #define OTL_EXTENDED_EXCEPTION (also see the otl_exception's extended fields).

## Source Code

    #include <iostream>
    using namespace std;

    #include <stdio.h>
    #define OTL_ODBC // Compile OTL 4.0/ODBC
    #define OTL_EXTENDED_EXCEPTION // Enable extended field in otl_exception
    #define OTL_THROWS_ON_SQL_SUCCESS_WITH_INFO
    #include <otlv4.h> // include the OTL 4.0 header file

    otl_connect db; // connect object

    void insert()
    // insert rows into table
    {
      try{
        // Setting the "OTL throws on SQL_SUCCESS_WITH_INFO flag" to true
        db.set_throw_on_sql_success_with_info(true);
        // Executing a T-SQL batch of INSERT statements.
        otl_cursor::direct_exec
          (db,
           "SET NOCOUNT ON; " // NOCOUNT needs to be set to ON in order to
                              // work with OTL.
           "INSERT INTO test_tab VALUES(1,'Name1'); "
           "INSERT INTO test_tab VALUES(2,'Name2'); "
           "INSERT INTO test_tab VALUES(2,'*Name2'); "
           "INSERT INTO test_tab VALUES(3,'Name3') ",
           otl_exception::enabled
          );
      }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.sqlstate<<endl; // print out SQLSTATE message
        cerr<<p.var_info<<endl; // print out the variable that caused the error
        if(p.arr_len>0){ // checking if the extended fields were populated
          for(int j=0;j<p.arr_len;++j){
            cout<<"MSG["<<j<<"]="<<p.msg_arr[j]<<endl; // message array
            cout<<"SQLSTATE["<<j<<"]="<<p.sqlstate_arr[j]<<endl; // sqlstate array
            cout<<"CODE["<<j<<"]="<<p.code_arr[j]<<endl; // code array
          }
        }
      }
      // Setting the "throw flag" back to false
      db.set_throw_on_sql_success_with_info(false);

    }

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

      db.rlogon("scott/tiger@mssql"); // connect to MS SQL Server

      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 int not null unique, f2 varchar(30))"
        );  // create table

      insert(); // insert records into 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.sqlstate<<endl; // print out SQLSTATE info.
      cerr<<p.var_info<<endl; // print out the variable that caused the error
      if(p.arr_len>0){ // checking if the extended fields were populated
       for(int j=0;j<p.arr_len;++j){
        cout<<"MSG["<<j<<"]="<<p.msg_arr[j]<<endl; // message array
        cout<<"SQLSTATE["<<j<<"]="<<p.sqlstate_arr[j]<<endl; // sqlstate array
        cout<<"CODE["<<j<<"]="<<p.code_arr[j]<<endl; // code array
       }
      }
     }

     db.logoff(); // disconnect from MS SQL Server
     return 0;

    }

## Output

    [Microsoft][ODBC SQL Server Driver][SQL Server]Violation of UNIQUE KEY constraint 'UQ__test_tab__1550F9CF'. Cannot insert duplicate key in object 'test_tab'.
    SET NOCOUNT ON; INSERT INTO test_tab VALUES(1,'Name1'); INSERT INTO test_tab VALUES(2,'Name2'); INSERT INTO test_tab VALUES(2,'*Name2'); INSERT INTO test_tab VALUES(3,'Name3')
    23000

    MSG[0]=[Microsoft][ODBC SQL Server Driver][SQL Server]Violation of UNIQUE KEY constraint 'UQ__test_tab__1550F9CF'. Cannot insert duplicate key in object 'test_tab'.
    SQLSTATE[0]=23000
    CODE[0]=2627
    MSG[1]=[Microsoft][ODBC SQL Server Driver][SQL Server]The statement has been terminated.
    SQLSTATE[1]=01000
    CODE[1]=3621

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Copyright © 1996, 2007, Sergei Kuchin, email: skuchin@ispwest.com, skuchin@gmail.com/a>.

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