Kombination af UNION- og LIMIT-operationer i MySQL-forespørgsel

For at anvende ORDER BY eller LIMIT til en individuel SELECT skal du placere klausulen inden for parentesen, der omslutter SELECT:

(SELECT a FROM t1 WHERE a=10 AND B=1 ORDER BY a LIMIT 10)
UNION
(SELECT a FROM t2 WHERE a=11 AND B=2 ORDER BY a LIMIT 10);