WHAT ARE THE CONSTRAINTS IN SQL?

HOW TO BACKUP DATABASE IN SQL?

HOW TO USE BETWEEN OPERATOR IN SQL?

HOW TO USE IN OPERATOR IN SQL?

HOW TO USE WILDCARD CHARACTERS IN SQL?

HOW TO USE LIKE OPERATOR IN SQL?

HOW TO USE COUNT() AVG() SUM() FUNTIONS IN SQL?

HOW TO USE MIN() AND MAX() FUNTION IN SQL?

HOW TO USE SELECT TOP CLAUSE IN SQL?

WHAT IS A NULL VALUE IN SQL?

HOW TO USE SQL ORDER BY CLAUSE?

HOW TO USE SQL AND, OR, NOT OPERATORS?