子查询返回的值超过1

Question

我有以下查询：

SELECT
    gh_id,
    gh_Date,
    (SELECT V_ALLAccounts.h_name
       FROM V_ALLAccounts, Tbl_Golname
      WHERE kid = gh_F_kcode
        AND mid = gh_F_mcode
        AND tid = gh_F_tcode)
  FROM Tbl_Golname, V_ALLAccounts

当我运行该查询时，我收到以下错误：

  

Msg 512，Level 16，State 1，Line 1
  子查询返回的值超过1。当子查询遵循=，！=，＆lt;，＆lt; =，＆gt;，＆gt; =或子查询用作表达式时，不允许这样做。

Answer 1

如果我不得不猜测，这就是你想要的：

SELECT gh_id, gh_Date,
       (SELECT V_ALLAccounts.h_name
        FROM V_ALLAccounts 
        WHERE kid = gh_F_kcode and 
              mid = gh_F_mcode and tid = gh_F_tcode
       )
FROM Tbl_Golname ;