MySQL is a relational database management system (RDBMS). MySQL stands for "My Structured Query Language". The program runs as a server providing multi-user access to a number of databases. MySQL is officially pronounced /maɪˌɛskjuːˈɛl/ (My S-Q-L), but often pronounced /maɪˌsiː'kwɛl/ (My SEQuel).
Many web applications use MySQL as the database component of a LAMP software stack.