Difference between primary key and unique key ?
Answer Posted / saga
--->We Define only one PK per table but it should have one
or more UK.
--->PK does not contain null but UK contains null.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is transaction control statement and how many types of transaction control statement in Oracle?
What do database buffers contain?
How to rename a tablespace in oracle?
query optmization techniques and quwry analyser+projects+ppts
What are the four Oracle system processes that must always be up and running for the database to be useable?
What privilege is needed for a user to create indexes in oracle?
What is an oracle database?
What are the uses of synonyms?
Is there any way to find out when one specific table/view/M-view is used last time. i.e. when one specific object is used in any SELECT statement.
How would you begin to troubleshoot an ORA-3113 error?
What is oracle sid?
Explain oracle left join with an example?
hi friends i completed b.com 2004.i have 3y accounting exp. in manufacturing company.now i have completed oracle finance.pls suggest me how will get job in oracle.can i get job in oracle.
What are the arithmetic operations?
What is sequence?