我收到一個語法錯誤，有人可以告訴我爲什麼？SQL子查詢中的語法錯誤

SELECT c.clientid, c.clientname, c.billingdate, 
     (SELECT TOP 1 previousbalance FROM invoice i 
      WHERE i.client = c.clientid ORDER BY i.invoiceid DESC) AS remaining 
FROM client c 
ORDER BY clientname

什麼二次選擇做的是讓在發票表clientid的最新記錄。

程序 - HediSQl

SQL

這裏是錯誤：

SQL Error (1064): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1 previousbalance FROM invoice i WHERE i.client = c.clientid ORDER BY i.invoicei' at line 1 */

來源

2012-08-29 user1269625

請在這裏展示的語法錯誤。和哪個SQL（MySQL，SQL Server等）？ – hims056

HediSQL是程序，SQL，這裏是錯誤'SQL錯誤（1064）：你的SQL語法錯誤;檢查對應於您的MySQL服務器版本的手冊，以找到正確的語法，以便在第1行的'1 previousbalance FROM invoice i WHERE i.client = c.clientid ORDER BY i.invoicei'* /' – user1269625

只是猜測，但它可能表明，你應該LIMIT 1或WHERE ROWNUM < 2 LIMIT 1更換TOP 1。你使用什麼樣的數據庫？

來源

2012-08-29 05:32:54 tbl

LIMIT 1不起作用。 ..how會在哪裏ROMNUM <2看起來像？ – user1269625

這不起作用？ 'SELECT c.clientid，c.clientname，c.billingdate，（SELECT previousbalance FROM invoice i WHERE i.client = c.clientid ORDER BY i.invoiceid DESC LIMIT 1）AS FROM FROM client c ORDER BY clientname' – tbl

thanks tbk！ !!!!! – user1269625

您擁有的語法將在SQL Server中工作。你的錯誤信息來自MySQL。

試試這個：

SELECT c.clientid, 
     c.clientname, 
     c.billingdate, 
     (
     SELECT previousbalance 
     FROM invoice i 
     WHERE i.client = c.clientid 
     ORDER BY i.invoiceid DESC 
     LIMIT 1 
     ) AS remaining 
FROM client c 
ORDER BY clientname

來源

2012-08-29 05:34:47

你只需要使用LIMIT代替TOP這樣的：

SELECT c.clientid, c.clientname, c.billingdate, 
    (SELECT previousbalance FROM invoice i 
    WHERE i.client = c.clientid ORDER BY i.invoiceid DESC LIMIT 1) AS remaining 
FROM client c 
ORDER BY clientname

See this SQLFiddle

來源

2012-08-29 05:39:25 hims056

SQL子查詢中的語法錯誤

回答

See this SQLFiddle

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