![]() A database query can be either a select query or a action query. SQL command fall into Data Definition Language(DDL), Data Manipulation Language(DML), Data Query Language(DQL), Data Control Language(DCL), Transaction Control Language(TCL). Table is represented into rows and columns also known as tuple or records and fields. ![]() SQL is considered as a standard language for relational database management system and it is also known as data-oriented language The power of SQL is with a single command line we can access many records and we can fetch data based on specific criteria. ![]() The term Relational database means to relate structured data in the table. It was initially known as SEQUEL and is mainly used to query data from database, manipulate the data and retrieve data from relational database. SQL is a very easy database Language to learn and it requires no programming background.
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