Hello..

we have serious problem of checking null values. is there any
solutions for it.

We have written query and in that query i am doing minus value from
the another value like.
select val1 - val2 from table.

val1 has value but val2 is "NULL" so i get null value finaly.
"In oracle NVL function to solve the problem so if any function in
Firebird Interbase 6 to solve the problem..?"

so what should i do now...?
if it is possible so please give us prompt reply.
thanx
Jyotindra & Dev.