How many null values can be inserted in a coulmn whihc is unique constraint
- 8 Answers
- 10909 Views
- Flextronics, I also Faced
- E-Mail Answers
Answer Posted / amit
Any no. of times you can insert null values in a coulmn
whihc is unique constraint because a Null value is
undefined,unassigned,and unapplicable value so thats why we
cannot compaire with any other null value or other value.
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
how to create a table index in mysql? : Sql dba
How do you update f as m and m as f from the below table testtable?
How do you drop a trigger?
Can you upgrade sql express to full sql?
Mention what are the benefits of pl/sql packages?
ERROR:Insert or update on table"accnt" violates foreign key constraints "acct_to_curr_symbol" DETAILS:KEY(accnt_curr_id)(-2)is not present in the table "curr_symbol" ......solve The Problem..
Can we rename a column in the output of sql query?
Why is stored procedure faster than query?
What is triggering circuit?
What are inbuilt functions in sql?
How many sql core licenses do I need?
How can we link a sql database to an existing android app?
Can I learn sql in a week?
Which table is left in join?
Explian rowid, rownum?
