db_sql_01 - sql.Open doesn't return error, as it only creates a handle to the database, not a connection.
db_sql_02 'success': checking db.ping() to see if the connection can be established, thus making sure the credentials are correct
db_sql_03 'success_error': checking db.ping() to see if the connection can be established, thus making sure the credentials are correct
testing the database name
The beego way of handling rollback while doing a transaction
The beego way of handling commit while doing a transaction
transaction using beego