Question

I’ve written two SQL statements:

SELECT Count(*) AS table1Count FROM table1 WHERE foo=1;
SELECT Count(*) AS table2Count FROM table2 WHERE bar=2;

Both statements return the data I want, but I would like to know how to return a single table with two cells: table1Count and table2Count from a single query.

How do I do construct the query?

Answer 1

SELECT (SELECT Count(*) AS table1Count FROM table1 WHERE foo=1) AS table1Count, 
       (SELECT Count(*) AS  table2Count FROM table2 WHERE bar=2) AS table2Count;

Gives something like:

 table1count | table2count 
-------------+-------------
           4 |           6
(1 row)