"primary key=unique+null" is equal,reson?not,reason?
- 5 Answers
- 5431 Views
- I also Faced
- E-Mail Answers
Answer Posted / s.rama devi
if we create pk for any column in table. That column dont
allow the duplicate values and also not null values
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
What is meant by raw datatype?
What is oracle database client?
How to initialize variables with default values?
What is BBED in Oracle?
Explain a synonym?
What is hash cluster in oracle?
What is an oracle user role?
You have found corruption in a tablespace that contains static tables that are part of a database that is in NOARCHIVE log mode. How would you restore the tablespace without losing new data in the other tablespaces?
How to invoke the data pump import utility?
What is a server parameter file in oracle?
Why do I get java.lang.abstractmethoderror when trying to load a blob in the db?
You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?
List out the types of joins.
How to check database size in Oracle?
Explain mutating triggers.
