內部加入子查詢在哪裏條件，顯示令牌錯誤'選擇'

Question

SELECT ma.openingbalance, 
     ma.closingbalance, 
     ct.currentopeningbalance AS AmtBeforeTransaction, 
     ct.currentclosingbalance AS AmtAfterTransaction, 
     ct.transactionnumber, 
     ct.transactionid, 
     ct.ammount 
FROM masteraccount AS ma 
     INNER JOIN companytransactions AS ct 
       ON ma.companyid = ct.companyid 
WHERE (ct.transactionid = (SELECT Max(ct.transactionid) AS max 
          FROM companyfinancials 
          WHERE (ma.financialid = 1) 
           AND (ma.companyid = 1))) 
     AND (ct.companyid = 1) 
     AND (ct.financialid = 1) 

連接查詢和子查詢單獨運行正常。但是當我把它們放在一起時，不同的錯誤會在不同的時間出現，所有這些錯誤都像'錯誤代幣'一樣選擇不同的行和偏移量。請幫助我

Answer 1

您在內部選擇中引用了外部別名。更改

(SELECT Max(ct.transactionid) AS max 
    FROM companyfinancials 
    WHERE (ma.financialid = 1) 
     AND (ma.companyid = 1)) 

TO

(SELECT Max(transactionid) AS max 
    FROM companyfinancials 
    WHERE (financialid = 1) 
     AND (companyid = 1))