mysql - 在更新语句中添加 If

Question

我正在尝试在更新语句中添加一个 IF 子句。以为这很容易，但似乎并非如此。

事情是这样的。它在存储过程中。

FETCH cur1 INTO procId, procType, procVals, procLen, procUpdated, procPrivate, procRegional;

    IF done THEN
      LEAVE the_loop;
    END IF;

    UPDATE scores t1
        JOIN scores t2
        ON FIND_IN_SET(t1.id, t2.vals)
        SET t1.private = t1.private+1,
        IF procType = 3 THEN // Problem lies here
             t1.regional = t1.regional+1;
            ELSE IF procType = 4 THEN
             t1.otherCol = t1.otherCol+1;
          END IF;
    WHERE t2.id = procId;

我被那里的 IF 困住了。除了第一个 SET，我还需要使用 IF Update 另一列。

Answer 1

UPDATE scores t1
JOIN scores t2
ON FIND_IN_SET(t1.id, t2.vals)

SET t1.private = t1.private+1 
t1.regional = IF (procType = 3, t1.regional + 1, t1.regional)
t1.otherCol = IF (procType = 4, t1.otherCol + 1, t1.otherCol)
WHERE t2.id = procId