SQL (Structured Query Language) is a database computer language

Introduction of SQL (Structured Query Language):

SQL (Structured Query Language) is a database computer language des ginned for managing .

Data in relational database management systems (RDBMS).

SQL is a standardized computer language that was originally developed by IBM for querying, altering and defining relational databases, using declarative statements.

What can SQL do?

• SQL can execute queries against a database

• SQL can retrieve data from a database

• SQL can insert records in a database

• SQL can update records in a database

• SQL can delete records from a database

• SQL can create new databases

• SQL can create new tables in a database

• SQL can create stored procedures in a database

• SQL can create views in a database

• SQL can set permissions on tables, procedures, and views

Even if SQL is a standard, many of the database systems that exist today implement their own version of the SQL language. In this document we will use the Microsoft SQL Server as an example.

Here are some examples of SQL queries: