what is unique key?
Answer Posted / guest
It is a constraint used to avoid duplication of values
within the row of a specified column or set of columns in a
table. It can also allow null values
| Is This Answer Correct ? | 20 Yes | 5 No |
Post New Answer View All Answers
How to write a query with a left outer join in oracle?
How to call a stored function with parameters?
What is hash cluster in oracle?
State any two functions of oracle?
How to change user password in oracle?
What is an Oracle index?
Is the After report trigger fired if the report execution fails ?
What is Library Cache in Oracle?
How to synchronize 2 schema's objects?
What are the differences between date and timestamp in oracle?
How to change system global area (sga) in oracle?
How to call a stored function in oracle?
How to drop a tablespace?
What do you understand by database schema and what does it hold?
What is oracle sid?