If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?
Answer Posted / reddibasha
No, it is not equivalent practically.
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
How to drop an index in oracle?
How many objectname will be created for a single table drop function? Why 'flashback' query giving error "ORA-38312: original name is used by an existing object" while getting the table?
What are temporal data types in oracle?
Compare and contrast between sql and sql server and explain its various functions?
Explain oracle’s system global area (sga).
How to drop an existing table in oracle?
State some uses of redo log files?
In which language oracle has been developed?
Explain the different normalization forms?
What are the differences between interval year to month and interval day to second?
How to unlock the sample user account in oracle?
How to use select statement to count the number of rows in oracle?
What are the advantages of oracle?
what is a Nested Loop join?
Explain the features of oracle?