# OTL 4.0, Example 102 (#define OTL_UNCAUGHT_EXCEPTION_ON, Oracle 8/8i)

# Example 102 (#define OTL_UNCAUGHT_EXCEPTION_ON, Oracle 8/8i)

This example demonstrates #define OTL_UNCAUGHT_EXCEPTION_ON. See also problem 46. This example definitely does NOT work with VC++ 6.0. In Windows, it can be compiled with Borland C++ 5.5. or GNU C++, or any other C++ compiler which supports the ANSI C++ bool uncaught_exception() function.

## Source Code

    #include <iostream>
    using namespace std;

    #include <stdio.h>

    #define OTL_ORA8 // Compile OTL 4.0/OCI8
    #define OTL_STL // enable STL / ANSI C++ compliance.
    #define OTL_UNCAUGHT_EXCEPTION_ON // enable safe exception handling / error
                                      // recovery.
    #include <otlv4.h> // include the OTL 4.0 header file

    otl_connect db; // connect object

    void insert()
    // insert rows into table
    {
     otl_stream o(10, // buffer size
                  "insert into test_tab values(:f1<int>,:f2<char[31]>)",
                     // SQL statement
                  db // connect object
                 );
     o.set_commit(0); // turning off the stream's autocommit flag
     char tmp[32];

     for(int i=1;i<=100;++i){
      sprintf(tmp,"Name%d",i);
      o<<i;
      if(i==17)
       throw "Making a little trouble in the middle of the INSERT...";
      o<<tmp;
     }
     o.flush(); // flushing the stream's buffer
     db.commit(); // committing the changes to the database
    }

    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(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.var_info<<endl; // print out the variable that caused the error
      db.rollback(); // roll back transaction
     }

     catch(const char* msg){
      cerr<<msg<<endl; // print out the message
      db.rollback(); // roll back transaction
     }

     db.logoff(); // disconnect from Oracle

     return 0;

    }

## Output

    Making a little trouble in the middle of the INSERT...

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

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