If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?
Answer Posted / pkd
yes, unique key is also used for foreign key
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What are the ansi data types supported in oracle?
Explain view?
How to name query output columns in oracle?
How to update values in a table in oracle?
Why do we need oracle client?
What are the predefined tablespaces in a database?
How to create a single index for multiple columns?
What is a system tablespace and when it is created?
How to install oracle database 10g xe?
What is the difference between I and G in Oracle?
Explain the difference between a procedure and a function? What do you understand by those terms?
Explain enable novalidate constraint.
What is the implicit cursor in oracle?
How to define a data field as not null?
What is an oracle wallet?