OTL 4.0, Example 534 (#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_MSSQL_2005 // Compile OTL 4/ODBC, MS SQL 2005
#define OTL_FREETDS_ODBC_WORKAROUNDS // Enable the FreeTDS / ODBC workarounds for MS SQL
//#define OTL_ODBC // Compile OTL 4/ODBC. Uncomment this when used with MS SQL 7.0/ 2000
//#define OTL_ODBC_UNIX // Compile OTL 4 / ODBC. Uncomment this when used in Linux / Unix
#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@freetds_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

[FreeTDS][SQL Server]Violation of UNIQUE KEY constraint 'UQ__test_tab__617D1B65'. Cannot insert duplicate key in object 'dbo.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]=[FreeTDS][SQL Server]Violation of UNIQUE KEY constraint 'UQ__test_tab__617D1B65'. Cannot insert duplicate key in object 'dbo.test_tab'.
SQLSTATE[0]=23000
CODE[0]=2627
MSG[1]=[FreeTDS][SQL Server]The statement has been terminated.
SQLSTATE[1]=01000
CODE[1]=362

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