Define candidate key, alternate key, composite key?
- 30 Answers
- 137687 Views
- IAS, IBM, I also Faced
- E-Mail Answers
Answer Posted / zulfiqar ali
ANSWER 22.. 1 A candidate key is the combination of one or
more attributes which is used to identify records uniquely a
candidate can be selected as a primary key.
2 A key which is not selected is called Alternate key.
3 combination of attributes is called composite key.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
How to combine two function together?
If a column is an image value type, how you can compare column values? How can you use this column in join clause?
Explain about query and reporting.
Explain about the storage and physical database design?
What you can do to remove data from the cache and query plans from memory for testing the performance of a query repeatedly?
Explain about relational database management systems?
Explain about normal forms?
Can an extended stored procedure be called from inside a user-defined function?
How to use online Backups?
Who are naive users?
What are the three basic rules which are to be followed for the relational model of the database?
What is an application role and explain a scenario when you would use one?
State the acid rules?
What are the three types of database design?
Any sample or model question of punjab national bank for deputy manger IT or any sample of PNB.any1 plz do send on
