結合來自不同模式的兩個SELECT語句「生成」結果到一個表

Question

所以我下面的SELECT語句：

SELECT COUNT(A.Award) AS US, SUBSTRING(CAST(M.Year as char(4)), 0 , 4) AS Decade 
FROM Movies M, Awards A 
WHERE {SOME WHERE CLAUSE} 
GROUP BY Decade; 

和

SELECT COUNT(*) AS Total, SUBSTRING(CAST(A2.Year as char(4)), 0 , 4) AS Decade 
FROM Awards A2 
WHERE {SOME WHERE CLAUSE} 
GROUP BY Decade; 

第一個是「生」的表與列（美國,十年），第二個是「生成」列的另一個表（總計,十年）。我想加入這兩個表，以便我得到一個表（美國,總計,十年）。我該怎麼做？

Answer 1

把它們放在子查詢，並做了JOIN：

SELECT a.US, a.decade, b.total FROM 

    (SELECT COUNT(A.Award) AS US, SUBSTRING(CAST(M.Year as char(4)), 0 , 4) AS Decade 
    FROM Movies M, Awards A 
    WHERE {SOME WHERE CLAUSE} 
    GROUP BY Decade) AS a 

INNER JOIN 

    (SELECT COUNT(*) AS Total, SUBSTRING(CAST(A2.Year as char(4)), 0 , 4) AS Decade 
    FROM Awards A2 
    WHERE {SOME WHERE CLAUSE} 
    GROUP BY Decade) AS b 

ON a.decade = b.decade