What are constraints? Explain different types of
constraints?
Answer Posted / hari
Constraint : To Restrict the voilation of irrelegular data
and maintain data integrity.
Primary key
Unique Key
NotNull
Forigen Key
Check
Is This Answer Correct ? | 73 Yes | 45 No |
Post New Answer View All Answers
In one interview...interviewer ask me question pleas tell me sql server architecture.. can any body tell me the sql server architecture with digram
After creating the cube, if we added a new column to the oltp table then how you add this new attribute to the cube? : sql server analysis services, ssas
What are the types of joins in sql?
What is the difference between primary key and unique constraints?
How will you know when statistics on a table are obsolete?
What do you mean by data manipulation language?
What is raiseerror? What is raiseerror?
What is difference between joins and subqueries?
How to get the query of a table in sql server?
What is the difference between cartesian product and cross join?
How to create indexed view?
What is the purpose of object explorer and its features? : sql server management studio
Is sql server is free?
Mention the differences between sql server and mysql.
Explain optimistic and pessimistic concurrency?