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sys_transfer_userroles2owned.txt

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+DELIMITER //
+CREATE OR REPLACE PROCEDURE sys_transfer_userroles2owned()
+BEGIN
+  /*
+    function   : 配合 amis 的 transfer 元件, 將userroles 寫入暫存在 owned 欄位 
+    description: 本程式基本上只會很低頻率的使用, 因為程式的 SOP 是由 owned -> userrole
+                 不會逆向執行
+    build date : 2021/10/22
+    
+    modify history
+      item who        date       modify docs
+      ==== ========== ========== ================================================
+      1    michael    2021-10-17 新增
+	  2    Michael    2025/07/20 改寫為 MariaDB 並最佳化(ChatGPT+DeepSeek)
+  */
+  DECLARE v_done INT DEFAULT FALSE;
+  DECLARE v_roleid VARCHAR(100);
+  DECLARE v_userids TEXT;
+  
+  -- 宣告游標，按 roleid 分組取得所有 userid
+  DECLARE cur CURSOR FOR 
+    SELECT roleid, GROUP_CONCAT(userid SEPARATOR ',') 
+    FROM sys_userroles 
+    GROUP BY roleid;
+  
+  DECLARE CONTINUE HANDLER FOR NOT FOUND SET v_done = TRUE;
+  
+  OPEN cur;
+  
+  read_loop: LOOP
+    FETCH cur INTO v_roleid, v_userids;
+    IF v_done THEN
+      LEAVE read_loop;
+    END IF;
+    
+    -- 更新 owned 欄位
+    UPDATE sys_roles SET owned = v_userids WHERE roleid = v_roleid;
+  END LOOP;
+  
+  CLOSE cur;
+END //
+DELIMITER ;