waht is the difference between primary key and super key?
Answer Posted / avinash
primary key:
primary key could be any key which is able to identify
a specific row in data base in a unique manner.
super key;
different set of attributes which are able to identify
any row in the database is known as super key.
| Is This Answer Correct ? | 29 Yes | 6 No |
Post New Answer View All Answers
What is a directory object?
How many types of cluster table in Oracle?
Explain joins in oracle?
If any one has information regarding interview of NIC (National Informatics Centre),it would be of great help...
What is primefaces used for?
What are the different types of database objects?
What are the system predefined user roles?
How to find the duplicate rows count from employees table in oracle?
How do I uninstall oracle client from windows?
what is IDE,DMV in sql server?
Tab A A B ------ 1 A 2 B 3 C Tab B A B ----- 4 D 5 E 6 F Generate the value into B table from A table. Only table A has the value. Write the SQL query to get B table value.
What are the limitations oracle database 10g xe?
interview questions with answer for cts
In SAP ECC 6.0 , under DB02 tcode , Tablespace name to be explain stepy step all the col
What is transaction control statement and how many types of transaction control statement in Oracle?