SQL for Beginner – PART I

SQL Tutorial

SQL:-

Collection of organized data called as DATABASE. When we define, create, query and update the database through software then that system known as “Database Management System” or “DBMS”.  When we want to manage all this things through programming language then we use “SQL” or “Structured Programming Language”.

SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce.

Data Definition Language:

Whenever you want to build or destroy or altered any structure of database object at that time whatever SQL commands we follow those are inside of Data Definition Language’s scope.

SQL Commands:

1. Create – It will create an object in database.

2. Alter – It will alter required object in database.

3. Drop – It will destroy the whole structure of an object in database.

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