What are the pseudo columns in Oracle?
A Pesudo column is not actual column of any database table, it
only behave like a table column and you can select pesudo column
values for a table but you can not perform insert, update or delete
for a pseudocolumn. Oracle supporting many pseudo columns, some of
those are :
CURRVAL
NEXTVAL
LEVEL
ROWID
ROWNUM
ORA_ROWSCN
OBJECT_ID
For
more details visit to Oracle.com :
0 Comments:
Post a Comment
Subscribe to Post Comments [Atom]
<< Home