Interested to Buy Any Domain ? << Click Here >> for more details...
Difference between primary key and unique key ?
- 77 Answers
- 207519 Views
- Accenture, B2B Software Technologies, Cognizant, HP Finsoft, IndiaNIC, Karomi Technology, Keane India Ltd, L&T, Onward eServices, R Systems, Shakti, Techtic Solutions, I also Faced
- E-Mail Answers
Answer Posted / sreesakthi
primary key will not allow null values whereas unique key
will allow null values.we have only one primary key per
table,but we can have more than one unique key per table
| Is This Answer Correct ? | 25 Yes | 8 No |
Post New Answer View All Answers
How to use "in out" parameter properly?
Explain the use of constraints option in exp command.
Can we protect our pl/sql source code?
What is a subquery in oracle?
What is oracle database 10g express edition?
Explain the use of tables option in exp command.
How to empty your oracle recycle bin?
What are the types of trigger in oracle?
How to create a server parameter file?
How to create a table index in oracle?
What are dml statements in oracle?
List out the difference between commit, rollback, and savepoint?
How many types of auditing in Oracle?
How can I get column names from a table in oracle?
Explain mutating triggers.
