Question

I am querying the database to return a simple array.
IE: “SELECT * FROM contacts LIMIT 50”

But what i’m trying to figure out is, what if the user only has 10 contacts. I would like to show a response saying (10 of 10) contacts showing.

I know I could run 2 queries on the database,
a. SELECT * FROM contacts (and then count the results)
b. SELECT * FROM contacts (and then find the difference of A and B

But the problem lies when a user has 2,000 contacts which wouldn’t be uncommon. and then querying the database every time the user selects the “contacts” page.

So is there a simpler way to do this? or am I on the right track?

Any light would be appreciated.
Cheers.

Answer 1

Another approach

select *,
     (select count(*) from table) as `found`,
     (select 10 - count(*) from table) as missing
from table limit 10