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

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!