The SQL command object is used to specify what type of interaction with a database.

Commonly used SQL command

SQL Command Description
CREATE DATABASE Creates a new database
CREATE TABLE Creates a new table
ALTER DATABASE Modifies a database
ALTER TABLE Modifies a table
DROP TABLE Deletes a table
CREATE INDEX Creates an index
DROP INDEX Deletes an index
SELECT Fetch data from database tables
UPDATE Modify data in a database table
DELETE Deletes data from a database table
INSERT INTO Inserts new data into a database table

Above SQL query are often used and always starts with these commands.