-
Junior Member
Unique key and Single Query
Suppose we have defined a unique on a column of a table? So at max how many null values can one insert for the same column.
Also using Single query how to display numbers from 1 to 100
-
Expert Member
Re: Unique key and Single Query
select rownum from sys.all_tables where rownum <=100 ;
-
Re: Unique key and Single Query
You can insert any number of null values as NULL is not a value .
and NULL <> NULL.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules