# Comparing and synchronizing SQLite databases

What is SQL?

SQL (Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS). It is the standard language used to interact with most RDBMSs, including MySQL, PostgreSQL, Oracle Database, Microsoft Access, and others. SQL can be used to create new databases, update existing ones and delete those that are no longer needed; it allows users to perform queries on the data stored in their RDBMs as well as carry out complex operations such as joining multiple tables together or creating views of the information stored within them.