This example demonstrates #define OTL_UNCAUGHT_EXCEPTION_ON.
See also problem 46.
#include <iostream>
using namespace std;
#include <stdio.h>
#define OTL_ODBC_ENTERPRISEDB // Compile OTL 4.0/EnterpriseDB-ODBC
// Uncomment the #define below when used in Linux / Unix
//#define OTL_ODBC_UNIX
#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 ODBC environment
try{
db.rlogon("scott/tiger@edbsql"); // connect to EDB
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 EDB
return 0;
}
Making a little trouble in the middle of the INSERT...
Copyright © 1996-2024, Sergei Kuchin, email: skuchin@gmail.com, skuchin@gmail.com/a>.