並獲得有意義的結果。如何結合這些查詢
目前我正在這三個疑問:
SELECT t.type,t.id,s.title FROM db1.tags t INNER JOIN db1.st s ON s.id=t.id WHERE id LIKE '%%' AND t.tag='foo' AND t.type='s' ORDER BY tag desc LIMIT 0, 19
SELECT t.type,t.id,v.title FROM db1.tags t INNER JOIN db1.vi v ON v.id=t.id WHERE id LIKE '%%' AND t.tag='foo' AND t.type='v' ORDER BY tag desc LIMIT 0, 19
SELECT t.type,t.id,i.ca AS title FROM db1.tags t INNER JOIN db2.tablename i ON i.id=t.id WHERE id LIKE '%%' AND t.tag='foo' AND t.type='i' ORDER BY tag desc LIMIT 0, 19
然後嘗試將數據結果結合起來,但我真的喜歡是,如果我可以將它們合併成一個單一的查詢。
有什麼想法?
我會把它放到嵌套查詢中,雖然 – Quassnoi 2010-03-17 13:57:01
會這樣做,謝謝 – mcgrailm 2010-03-17 14:19:28
ohh我必須把每個查詢周圍(),並移動限制和秩序的結束 – mcgrailm 2010-03-17 14:20:28