Multiple where clauses in one row sql

count, sql, where-clause

Solution

You can combine `SUM` and `CASE` to get various counts in one go:

SELECT
    Month,
    SUM(CASE WHEN Flag=1 THEN 1 ELSE 0 END) as count1,
    SUM(CASE WHEN Flag=2 THEN 1 ELSE 0 END) as count2
from
    ...
WHERE Month in ('11','12')
GROUP BY
    Month /* Other columns? */

Problem

I want to take the below statement and fuse it into one query. ``` SELECT COUNT(*) AS count1 WHERE Month='11' AND Flag = 1 SELECT COUNT(*) AS count2 WHERE Month='11' AND Flag = 2 SELECT COUNT(*) AS count1 WHERE Month='12' AND Flag = 1 SELECT COUNT(*) AS count2 WHERE Month='12' AND Flag = 2 ``` I want this to display as one query with columns count1 and count2 and rows month 11 and month 12. Is there a syntax for this?

Original source