Answer Posted / mail2sentha
pseudo column is a act as an database table column,but its
not a actual column in a table,we can fetch value from a
pseudo column.
ex.
user,usid,rownum,rowid,level,nextval,curval,sysdate
| Is This Answer Correct ? | 29 Yes | 6 No |
Post New Answer View All Answers
How many functions are there in sql?
How to fetch values from testtable1 that are not in testtable2 without using not keyword?
Is sql open source?
Is primary key clustered index?
How to generate a salary slip like jan 1000 1000 feb 1000 2000 ... dec 1000 12000
What is difference between cursor and trigger?
How many indexes can be created on a table in sql?
What packages(if any) has oracle provided for use by developers?
What is informix sql?
What is sql integrity?
What is the difference between local variables and global variables?
What is difference between sql function and stored procedure?
Explian rowid, rownum? What are the psoducolumns we have?
What is null in pl/sql?
What do you mean by field in sql?
