SQL generally expanded as Structured Query Language. The first report of SQL was developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s. This version, initially called SEQUEL, was planned to manipulate and retrieve data stored in IBM's original relational database creation, System R. The SQL language was later formally standardized by the American National Standards Institute (ANSI) in 1986. Later versions of the SQL standard have been released as International Organization for Standardization (ISO) standards.Originally intended as a declarative query and data manipulation language, variations of SQL have been created by SQL database management system (DBMS) vendors that add procedural constructs, control-of-flow statements, user-defined data types, and various other language extensions. With the release of the SQL:1999 standard, many such extensions were formally adopted as part of the SQL language via the SQL continual Stored Modules portion of the standard. In SQL first, there are the standard Data Manipulation Language (DML) basics. DML is the subset of the language used to insert, update and delete data.
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