SQL recovery software to repair corrupted .mdf files, tables, views,
stored procedures, rules, defaults, user defined data types and triggers from
Microsoft SQL server database

Constraints are declaration of conditions for the database that must remain true. Constraints are used to bind the reading or writing operation from/to the database table. These include tuple-based, attribute base, referential integrity and key constraints. The system examines for the desecration of the constraints on the actions that may cause desecration, and aborts the action accordingly.

You can use the database constraints to limit the type of data entry that can be entered into a SQL Server database table. These constraints can be defined when the table is first created through he "Create Table" statement, of after table creation using "Alter Table" command. Triggers are special kind of inbuilt database constraints.

There are five common types of database constraints:

1. Primary Key
2. Foreign Key
3. Unique Key
4. Not Null
5. Check

These are used for different purposes to define the database creating and altering conditions.

Sometimes, the database constraints get corrupted or stop working properly due to several reasons including improper database altering, unsaved database constraints and related table or constraint deletion. In these circumstances the MS SQL Server Database can't be modified or accessed and can lead to nightmare of data loss.

Stellar Phoenix SQL Data Recovery software can repair your corrupted database constraints and can make your SQL Server database easily accessible and can retrieve it in its original condition. It is a very powerful Microsoft SQL Server database repair and restore software to get the original database back.