If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?
- 8 Answers
- 9836 Views
- IBM, I also Faced
- E-Mail Answers
Answer Posted / amit
if that so then your referential entrigity will be spoil
foreign key will not be recognised means data will not true.
| Is This Answer Correct ? | 5 Yes | 8 No |
Post New Answer View All Answers
what is the scenario where you take the database to NoArchivelog mode?
What is a table index in oracle?
How many memory layers are in the oracle shared pool?
What are the differences between primary key and unique key?
What happens to the current transaction if the session is killed?
How to convert characters to times in oracle?
How to define a data field as not null?
Difference between the “verify” and “feedback” command?
Explain how are indexes update?
Explain drop constraint oracle?
What happens if the update subquery returns multiple rows?
How to start instance with a minimal initialization parameter file?
What is connection pool in oracle?
How to use "while" statements in oracle?
11. Display the client number and name and the client number and name of the person who referred that client.
