'/'應用程序中的服務器錯誤。在C＃.net

Question

上午在C＃.Net傳遞MYSQL查詢，我總是得到相同的錯誤。

我的查詢是

topCustomers.DataSource = GetData("SELECT l.Username , Sum(ad.Amt) AS Amount ,ad.UserDate FROM adm_advt_answer ad" + 
           "JOIN adm_advt_question adq ON ad.Q_ID = adq.nID" + 
           " INNERJOIN login l ON adq.Buserid = l.Buserid WHERE adq.Buserid = '" + username + "' AND adq.Active='Y' AND date(ad.UserDate) = '2014-02-20'" + 
           " GROUP BY UserId"); 
    topCustomers.DataBind(); 

請糾正我的語法。

我的錯誤是

您的SQL語法錯誤;檢查與您的MySQL服務器版本相對應的手冊，以在'adm_advt_question adq ON ad.Q_ID = adq.nID INNERJOIN登錄l ON adq.Buserid = 1'附近使用正確的語法。在線1

Answer 1

嘗試INNER JOIN而不是INNERJOIN。

topCustomers.DataSource = GetData("SELECT l.Username , Sum(ad.Amt) AS Amount 
,ad.UserDate FROM adm_advt_answer ad " +//Notice the space at ending 
"JOIN adm_advt_question adq ON ad.Q_ID = adq.nID" + 
" INNER JOIN login l ON adq.Buserid = l.Buserid WHERE adq.Buserid = '" + username + "' AND 
adq.Active='Y' AND date(ad.UserDate) = '2014-02-20'" + 
" GROUP BY UserId"); 

您應該考慮使用PreparedStatements避免sql injection。（對於參數username）