VS Express 2013 C++ with MySQL Connector stmt->executeQuery() error - c++

Question

So I finally got VS 2013 C++ to connect with mySQL using the Connector C and C++ and I know this because I am able to add a table into my DB using the stmt->execute() function.
Now, I am trying to get the rows using the ResultSet to retrieve from function executeQuery, but this error shows up:
Here is my code:
#include <iostream>
#include <string>
#include "mysql_connection.h"
#include "mysql_driver.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
#include <cppconn/prepared_statement.h>
#define dbHOST "tcp://127.0.0.1:3306"
#define dbUSER "root"
#define dbPASS "root"
#define dbDB "db_test"
using namespace std;
using namespace sql;
int main()
{
sql::mysql::MySQL_Driver *driver;
sql::Connection *con;
sql::Statement *stmt;
sql::ResultSet *res;
driver = sql::mysql::get_driver_instance();
con = driver->connect(dbHOST, dbUSER, dbPASS);
stmt = con->createStatement();
string query = "SELECT * FROM test";
res = stmt->executeQuery(query.c_str());
while (res->next()) {
cout << "id = " << res->getInt(1);
cout << ", label = '" << res->getString("label") << "'" << endl;
}
delete res;
delete stmt;
delete con;
system("pause");
return 0;
}
Under the output pane, it shows this as well:
First-chance exception at 0x77661D4D in MySQLConnect.exe: Microsoft C++ exception: sql::SQLException at memory location 0x0088FB5C.
Unhandled exception at 0x77661D4D in MySQLConnect.exe: Microsoft C++ exception: sql::SQLException at memory location 0x0088FB5C.
Under the call stack after I hit F5 and it breaks, it shows this:
MySQLConnect.exe!main() Line 35 C++
Line 35 is the line with res = stmt->executeQuery(query.c_str());
Let me know if you need more information on my code / settings.
Thanks in advance!

Answer 1

Silly me, I found out what is the problem.
I have to add in a line:
stmt->execute("USE " dbDB);
before I can do any further query for that database. The snippet is now like this:
stmt = con->createStatement();
stmt->execute("USE " dbDB); // <-- This line, change dbDB to your own
string query = "SELECT * FROM test"; // <- before all of these below
res = stmt->executeQuery(query.c_str());
I hope this helps!