wrong count in query

Question

I have a table whose structure is as follows:

id  int
userid  int
status  enum (\'pending\',\'approved\')
dop     datetime

Data is as:

Answer 1

SELECT count( DISTINCT userid )
FROM t1
WHERE STATUS = 'pending'
GROUP BY userid

Answer 2

Try to add the userid in the select clause :

SELECT userid, count( userid )
FROM t1
WHERE STATUS = 'pending'
GROUP BY userid

Answer 3

The group by statement is executed after the count. Use this instead:

SELECT count( DISTINCT userid )
FROM t1
WHERE STATUS = 'pending'

Answer 4

You sould use the COUNT(DISTINCT()) construction, it allow you to count the diferent values not NULL (docu)

Try this sentence:

SELECT count( DISTINCT( userid ) )
FROM t1
WHERE STATUS = 'pending'
GROUP BY userid

HTH!

Answer 5

Do you want to count the number of user with status pending then?

SELECT count(userid)
FROM t1
WHERE STATUS = 'pending'
GROUP BY status, userid

Answer 6

Maybe adding DISTINCT() on userid?