difference between table level constraint and column level and
advantages of table level constraint
Answer Posted / selvi
Column level constraint can not refer other columns or sysdate, UID, currVal, nextVal or rownum, and this is limitation of column level constraint over table level constraint.
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
Which constraints we can use while creating database in sql?
Why self join is used in sql?
When is the explicit cursor used ?
How to avoid using cursors? What to use instead of cursor and in what cases to do so?
What is loop in pl sql?
What is the function that is used to transfer a pl/sql table log to a database table?
What does trigger mean in slang?
What does select count (*) mean in sql?
What is indexes?
how to enter binary numbers in sql statements? : Sql dba
Mention what problem one might face while writing log information to a data-base table in pl/sql?
What is pl sql record in oracle?
Does truncate release storage space?
How show all rows in sql?
What are synonyms in sql?