what is Constraint? How many types of constraints in SQL ?
Answer Posted / shankar k
Constraint are used to table columns validations.
there are some constraints.
Primary key,
Foreign Key,
Not Null,
Check,
Unique Key,
default
| Is This Answer Correct ? | 43 Yes | 10 No |
Post New Answer View All Answers
How to Update from select query in sql server?
Name 3 of the features that the sql server built-in function loginproperty performs on standard logins? : sql server security
What is sql profiler. What are the default templates with it? : sql server database administration
Define magic tables in sql server?
How to test values returned by a subquery with the in operator?
How to remove duplicate rows from table?
what are acid properties? : Sql server database administration
How to set a database state to offline in ms sql server?
What is ems sql management studio? : sql server management studio
What stored procedure would you use to view lock information?
How do indexes help, types?
List the data types available in mssql?
what is normalization? : Sql server database administration
how many no of arguments can be passed in procedures and functions
Explain different types of BACKUPs avaialabe in SQL Server? Given a particular scenario, how would you go about choosing a backup plan?