what is Constraint? How many types of constraints in SQL ?
- 38 Answers
- 84053 Views
- HCL, IBM, NIIT, Wipro, I also Faced
- E-Mail Answers
Answer Posted / scornguy
Constraints are used to limit the type of data that can go
into a table.
NOT NULL
UNIQUE
PRIMARY KEY
FOREIGN KEY
CHECK
DEFAULT
| Is This Answer Correct ? | 225 Yes | 29 No |
Post New Answer View All Answers
ow to bring suspect mode datbase online from scratch
What is the difference between a "where" clause and a "having" clause?
What is a constant or literal in ms sql server?
Can primary key be a foreign key?
What is default constraint?
Explain about protocol layer present in SQL server?
Where are full-text indexes stored?
What are sparse columns?
What is measure group, measure? : sql server analysis services, ssas
Tell me what are the essential components of sql server service broker?
In what version of sql server were synonyms released?
How to stop log file growing too big?
Explain different types of lock modes in sql server 2000?
What is model database? : SQL Server Architecture
How is foreign key related to primary key?
