MySQL - CREATE DEFINER語法錯誤

Question

我試圖更新我們的MySQL數據庫中存儲的函數。更新將發佈到多個設備，所以我通過update.sql文件進行更新。

下面是這只是測試團隊向我報告說，使用此功能的報告沒有正確生成功能

DROP FUNCTION `STAFF_MPT`; 
CREATE DEFINER=`jelena`@`%` FUNCTION `STAFF_MPT`(`par_stocktake_staff_id`  INT) RETURNS DECIMAL(20,0) NOT DETERMINISTIC CONTAINS SQL SQL SECURITY DEFINER BEGIN 

DECLARE proc_total INT; 
DECLARE proc_time INT; 

SET proc_total = (SELECT SUM(quantity) FROM stocktake_scans WHERE stocktake_staff_id = par_stocktake_staff_id); 

SET proc_time = (SELECT TIMESTAMPDIFF(SECOND , MIN(scan_date) , MAX(scan_date)) AS area_time 
    FROM stocktake_scans 
    WHERE stocktake_staff_id = par_stocktake_staff_id 
    ); 

RETURN (proc_total/proc_time)*3600; 

END 

。我試圖運行PMA SQL查詢窗口中的代碼，並得到以下內容：

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 '' at line 3 

有人能告訴我我錯過了什麼嗎？據此，第3行是空的，那麼它怎麼可能有語法錯誤？

Answer 1

由於MySQL docs：

如果您使用mysql客戶端程序定義包含分號存儲的程序，一個問題出現了。默認情況下，mysql本身將分號識別爲語句分隔符，因此您必須臨時重新定義分隔符以使mysql將整個存儲的程序定義傳遞給服務器。

要重新定義mysql分隔符，請使用delimiter命令。

@juergen_d暗示的評論：你必須用分隔符定義你的程序：

DROP FUNCTION `STAFF_MPT`; 

delimiter || 

CREATE DEFINER=`jelena`@`%` FUNCTION `STAFF_MPT`(`par_stocktake_staff_id`  INT) RETURNS DECIMAL(20,0) NOT DETERMINISTIC CONTAINS SQL SQL SECURITY DEFINER BEGIN 

DECLARE proc_total INT; 
DECLARE proc_time INT; 

SET proc_total = (SELECT SUM(quantity) FROM stocktake_scans WHERE stocktake_staff_id = par_stocktake_staff_id); 

SET proc_time = (SELECT TIMESTAMPDIFF(SECOND , MIN(scan_date) , MAX(scan_date)) AS area_time 
    FROM stocktake_scans 
    WHERE stocktake_staff_id = par_stocktake_staff_id 
    ); 

RETURN (proc_total/proc_time)*3600; 

END 

|| 
delimiter ;