SQL，顯示列表的發佈者ID，發佈者姓名，職務和單價最高的書的價格

Question

名單發佈者ID，發佈者姓名，職務和單價最高的書的價格

表1

Books 
    .ISBN 
    .Title 
    .PubDate 
    .PubID 
    .Cost 
    .Retail 
    .Category 

表2

Publisher 
    .PubId 
    .Name 
    .Contact 
    .Phone 

Answer 1

SELECT tbl1.pubID as 'Publisher ID', tbl2.Publisher as 'Publisher Name', tbl1.Title, tbl1.Cost 
FROM tables1 tbl1 INNER JOIN tables2 tbl2 ON (tbl1.pubID = tbl2.pubID) 
ORDER BY tbl1.cost DESC; 

Answer 2

SELECT top 1 tbl1.pubID as 'Publisher ID', 
      tbl2.Publisher as 'Publisher Name', 
      tbl1.Title, 
      tbl1.Cost 
FROM tables1 tbl1 
INNER JOIN tables2 tbl2 ON (tbl1.pubID = tbl2.pubID) 
ORDER BY tbl1.cost DESC 

Answer 3

嘗試下面的解決方案，這將工作！

SELECT tbl1.pubID as 'Publisher ID', 
      tbl2.Publisher as 'Publisher Name', 
      tbl1.Title, 
      tbl1.Cost 
FROM tables1 tbl1 
INNER JOIN tables2 tbl2 ON tbl1.pubID = tbl2.pubID 
WHERE tbl1.Cost IN (SELECT MAX(tt.Cost) FROM tables1 tt)