Things to consider:
Under User DSN Click Add
choose MySQL ODBC you want to use and then click finish
Right click your project and go to property->Configuration Properties->C/C++->General->Additional Include directory....
Add the path of otlv4_h2 as shown below:-
Press ok.
Right click your project tatiana and then go to debug->Start New Instance.
- Microsoft Visual C++ 2008
- MySQL Connector odbc
- Wamp or Xamp must be started and make sure that MySQL is started too.
- otl from http://otl.sourceforge.net/
Download and Install MySQL Connector odbc from http://dev.mysql.com/downloads/connector/odbc/
Open your control panel->Administrative Tools->Data Sources ODBC
Open your control panel->Administrative Tools->Data Sources ODBC
Under User DSN Click Add
choose MySQL ODBC you want to use and then click finish
Then
Download otlv4_h2.zip from http://otl.sourceforge.net/
Extract otlv4_h2.zip to C:/ directory
Open your Microsoft Visual C++ 2008, and go to File->New Project->Visual C++->Win32->Win32 Console Application. press ok after writing Name of the project as tatiana
Double click tatiana.cpp from source files and copy and paste the following code to it.
// tatiana.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <iostream>
using namespace std;
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define OTL_ODBC_MYSQL // Compile OTL 4.0/ODBC/MySQL
// #define OTL_ODBC_UNIX // uncomment this line if UnixODBC is used
#include <otlv4.h> // include the OTL 4.0 header file
otl_connect db; // connect object
void insert()
// insert rows into table
{
otl_stream o(1, // buffer size should be == 1 always on INSERT
"insert into test_tab values(:f1<int>,:f2<char[31]>)",
// SQL statement
db // connect object
);
char tmp[32];
for(int i=1;i<=100;++i){
sprintf(tmp,"Name%d",i);
o<<i<<tmp;
}
}
void update(const int af1)
// insert rows into table
{
otl_stream o(1, // buffer size should be == 1 always on UPDATE
"UPDATE test_tab "
" SET f2=:f2<char[31]> "
" WHERE f1=:f1<int>",
// UPDATE statement
db // connect object
);
o<<"Name changed"<<af1;
o<<otl_null()<<af1+1; // set f2 to NULL
}
void select(const int af1)
{
// MyODBC does not allow any input bind variables in the WHERE clause
// in a SELECT statement.
// Therefore, the SELECT statement has to be generated literally.
char stmbuf[1024];
sprintf(stmbuf,
"select * from test_tab where f1>=%d and f1<=%d*2",
af1,
af1
);
otl_stream i(50, // buffer size may be > 1
stmbuf, // SELECT statement
db // connect object
);
// create select stream
int f1;
char f2[31];
while(!i.eof()){ // while not end-of-data
i>>f1;
cout<<"f1="<<f1<<", f2=";
i>>f2;
if(i.is_null())
cout<<"NULL";
else
cout<<f2;
cout<<endl;
}
}
int main()
{
otl_connect::otl_initialize(); // initialize ODBC environment
try{
db.rlogon("UID=root;PWD=;DSN=tester"); // connect to ODBC
// db.rlogon("scott/tiger@mysql"); // connect to ODBC, alternative format
// of connect string
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, f2 varchar(30))"
); // create table
insert(); // insert records into the table
update(10); // update records in the table
select(8); // select records from the 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 message
cerr<<p.var_info<<endl; // print out the variable that caused the error
}
db.logoff(); // disconnect from ODBC
system("pause");
return 0;
}
Add the path of otlv4_h2 as shown below:-
Press ok.
Right click your project tatiana and then go to debug->Start New Instance.
hopefully you enjoyed the tutorial... go to the database from the phpmyadmin under the database name specified in the codes. Look for table test_tab.
******enjoy******
No comments:
Post a Comment