Introduction - If you have any usage issues, please Google them yourself
SQL is the Structured Query Language (structured query language) acronym. SQL is a database established specifically for the operation command set is a fully functional database language. In using it, only need to issue the " what" command, " how to do" is not the user to consider. SQL is powerful, easy to learn, easy to use, has become the basis for database operations, and now almost all databases are supported by SQL.