Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / nagarjuna reddy
A pseudo column is a column but it is not physically existed
in the table.if we want to use these column by specifying
externally in select statement for projection or selection.
but we can't insert,delete and update pseudo columns.
some of pseudo columns are
1 ROWID
2 ROWNUM
3 LEVEL
4 CURRVAL
5 MEXTVAL
etc...
| Is This Answer Correct ? | 9 Yes | 3 No |
Post New Answer View All Answers
How to get help at the sql prompt?
How many tables can you join in sql?
What is tuple in sql?
What are the ways on commenting in a pl/sql code?
How exception handling is done in advance pl/sql?
Is id a reserved word in sql?
How many sql core licenses do I need?
Why is sql*loader direct path so fast?
What do you think about pl/sql?
What is crud sql?
Explain what is sql?
How do I upgrade sql?
how do you login to mysql using unix shell? : Sql dba
What is blind sql injection?
What is pl sql collection?
