identify a specific value

[CRISPAN]

I need to identify a specific value in a database with 800 columns
eg know how many values ​​equal to 0 I have in total on base with a single command

[khurshid.arshad]

Dear CRISPAN
Your question is not clear.
a.

[Gregory Martin]

Have you looked at the count function? If your data is on a roster, you may be able to use that function to count the number of times that something occurs. If you want to find a particular occurrence, you can use the seek function.