Hello Everyone,

This is Antrikssh Mishra , I have created one application in c++ and using Eclipse with fedora 15 o/s I just build it and run it .my application build successfully but not connect to the server when I debug it then it shows following errors :

No source available for "sql::mysql::MySQL_Connection::init() at 0x14224c"

when I debug my code the code is debug perfectly but it fail at that point is show below.

pcHostName = "localhost"
pcUserName = "admin"
pcPassword = "user"
pcDBName = "MyDbase"

int iRetVal = 0;

// try block to establish a connection
try {

// load the drivers
poDriver = get_driver_instance();

// create a connection to the MySQL package
poConn = poDriver->connect(pcHostName, pcUserName, pcPassword);

// Connect to the MySQL database
poConn->setSchema(pcDBName);

// catch block to trap the exception and return error unable to access
// database
} catch (SQLException oSQLExecept) {
iRetVal =1;
}

return iRetVal;
}

After the highlighted line my code produce error before it worked perfectly.


Thanks and Regards,
Antrikssh Mishra.

What is the function get_driver_instance(); supposed to return? I would test to make sure that this is returning the correct values. Sometimes the line that fails is a result of improper data returned from a previous function. In your case you are using poDriver and you need to make sure that this has a correct value before proceeding with the connection.

Hello,

Sir I have re-debug my code and get the poDriver value that is


this * DB_Connection * const 0x807a288
poDriver sql:: Driver * 0x807a340
poConn sql:: Connection * 0x0
poStmt sql:: Statement * 0x0
poPrpdStmt sql::PreparedStatement * 0x0

HostName const char * 0x806d03f "localhost"
UserName const char * 0x806d03e "admin"


poDriver
Details:0x807a340
Default:0x807a340
Decimal:134718272
Hex:0x807a340
Binary:1000000001111010001101000000
Octal:01001721500

Name : poConn
Details:0x0
Default:0x0
Decimal:0

Name : poStmt
Details:0x0
Default:0x0
Decimal:0
Hex:0x0

Name : poPrpdStmt
Details:0x0
Default:0x0
Decimal:0
Hex:0x0
Hex:0x0

According to you what will be the value of poDriver.


Thanks and Regards,

Antrikssh Mishra.