What is SQL ?
SQL stands for Structured Query Language. SQL is a language for interacting with data in a database. SQL works following:
Create, Putting data into tables. Read Query data out of a table. Update Change data already in a table .Delete Remove data from the table.
What is an Importance of SQL?
SQL helps a user program to update the computer database by removing old data, modifying hitherto stored data, and adding new data.
It works by understanding and analyzing databases that include data fields in their tables. For example, we can take a large organization where a lot of data have to be stored and managed.
SQL DDL provides commands for defining relation schemas, deleting relations, modifying relation schemas. SQL includes commands for beginning and ending the transactions.
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