如何在mysql_query中使用更复杂的查询？

Question

I'm trying to use a more complex query through PHP and seem to be having issues. Here's what I'm trying to do:

$result = mysql_query('select(select count(*) from tblname where column LIKE xyz) and      (select count(*) from tblname2 where column2='Value'));

This doesn't seem to work - any help?

Answer 1

That's not valid SQL. If you want the sum of both counts, maybe you mean:

SELECT SUM(cnt)
FROM
(
    SELECT COUNT(*) AS cnt
    FROM tblname
    WHERE column LIKE xyz
    UNION ALL
    SELECT COUNT(*) AS cnt
    FROM tblname2
    WHERE column2 = 'Value'
) x

Answer 2

You're using incorrect syntax, did you try to check the manual first? http://dev.mysql.com/doc/refman/5.0/en/subqueries.html