MySQL視圖，聯盟和集團通過

Question

我試圖寫這個SQL查詢：

Select t1.tms_id, t1.tms_name, t1.Pts from (
SELECT t.tms_id, t.tms_name, SUM(s.lsc_1stscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
WHERE (t.tms_id = l.lgs_1stplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
GROUP BY t.tms_name 
) t1 
union 
Select t2.tms_id, t2.tms_name, t2.Pts from (
SELECT t.tms_id, t.tms_name, SUM(s.lsc_2ndscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
WHERE (t.tms_id = l.lgs_2ndplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
GROUP BY t.tms_name 
) t2 
union 
Select t3.tms_id, t3.tms_name, t3.Pts from (
SELECT t.tms_id, t.tms_name, SUM(s.lsc_3rdscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
WHERE (t.tms_id = l.lgs_3rdplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
GROUP BY t.tms_name 
) t3 
union 
Select t4.tms_id, t4.tms_name, t4.Pts from (
SELECT t.tms_id, t.tms_name, SUM(s.lsc_4thscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
WHERE (t.tms_id = l.lgs_4thplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
GROUP BY t.tms_name 
) t4 
ORDER BY Pts DESC 

我需要通過這個查詢添加組，specificaly最後一個ORDER BY DESC積分之前，但加入GROUP BY tms_id（示例），讓我看到相同的結果。

一個朋友推薦我來創建一個視圖，但是當我試圖告訴我這個錯誤：

#1349 - View's SELECT contains a subquery in the FROM clause

而且我真的不知道什麼是子查詢（我搜索了，我真的不理解）。如何重新組織或修復此QUERY以使用另一個GROUP BY？

Answer 1

Extract. 

Select t1.tms_id, t1.tms_name, t1.Pts from (
    SELECT t.tms_id, t.tms_name, SUM(s.lsc_1stscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
    WHERE (t.tms_id = l.lgs_1stplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
    GROUP BY t.tms_name 
) t1 

以下是上述sql語句的子查詢。

SELECT t.tms_id, t.tms_name, SUM(s.lsc_1stscore) as Pts FROM tb_team as t,tb_league as l, tb_game as g, tb_score as s 
    WHERE (t.tms_id = l.lgs_1stplace) AND (l.fk_lsc_id = s.lsc_id) AND (t.fk_gms_id = g.gms_id) AND (g.gms_id = 1) 
    GROUP BY t.tms_name 

要使用的子查詢中的MySQL視圖使每個子查詢到視圖，然後使用該視圖，而不是一個子查詢。