Question

Heres my scenario.

I have a table with 3 rows I want to return within a stored procedure, rows are email, name and id. id must = 3 or 4 and email must only be per user as some have multiple entries.

I have a Select statement as follows

SELECT
     DISTINCT email,
     name,
     id
from table
where
     id = 3
     or id = 4

Ok fairly simple but there are some users whose have entries that are both 3 and 4 so they appear twice, if they appear twice I want only those with ids of 4 remaining. I’ll give another example below as its hard to explain.

Table –

Email              Name    Id
[e-mail]   jimmy   4
[e-mail]   brian   4
[e-mail]   kevin   3
[e-mail]   jimmy   3

So in the above scenario I would want to ignore the jimmy with the id of 3, any way of doing this without hard coding?

Thanks

Answer 1

SELECT
     email,
     name,
     max(id)
from table
where
     id in( 3, 4 )
group by email, name