What is the difference between the following sql queries written
to
>extract tuples with the field amount having non null value:
> select loan_number from loan where amount <> null (It
>returns
>an empty set)
> select loan_number from loan where amount is not null(It
>returns the exp
I am using MySQL version 3.23.11-alpha on Win98. I have created a
database with a table borrower whose description is as follow:
mysql> describe borrower;
+---+-+--+-+-+---+
| Field | Type| Null | Key | Default | Extra |
+--