MongoDB is a document-oriented database. The main reason for not choosing relational model is said to be able to make scaling out easier. MongoDB has retain the most useful features of relational databases, such as secondary indexes, range queries, sorting etc.
If you forgot your mysql root password and you want to recover this here are the steps to Set / change / reset the password.
A User Defined Function (UDF) is a piece of code that extends the functionality of a MySQL server by adding a new function that behaves just like a native (built-in) MySQL function, such as abs() or concat().
TokuDB for MySQL® is a high-performance storage engine that increases MySQL performance and scalability on mixed workloads by one to two orders of magnitude.
