Structured Query Language

You could not have worked in the software field without at least hearing about Structured Query Language (SQL), a standard database access language with its own grammar. In the SQL world, a database is a collection of tables that consist of rows and columns. Many DBMS products support SQL, and many programmers know SQL. The SQL standard is continually evolving, and SQL grammar varies among products. SQL extensions, such as blob (binary large object) capability, allow storage of pictures, sound, and complex data structures.