Question

update p
set p.storePrice = 
    CASE 
       WHEN p.costPrice BETWEEN 0.00 AND 1.00 
       THEN p.costPrice * 1.0
    CASE 
       WHEN p.costPrice BETWEEN 0.00 AND 1.00 
       THEN p.costPrice * 1.0
    ELSE 
       p.msrpPrice
    END
FROM product p                      
WHERE p.type = 1

错误说：

Msg 156, Level 15, State 1, Line 9
Incorrect syntax near the keyword 'CASE'.

我似乎无法看到sql的任何问题？

Answer 1

有两个起始case。删除第二个，如：

case 
    when x=1 then ...
    when x=2 then ...
end

Answer 2

尝试：

UPDATE p
    SET 
     p.storePrice = 
            CASE 
                WHEN 
                    p.costPrice BETWEEN 0.00 AND 1.00 
                    THEN p.costPrice * 1.0

                WHEN 
                    p.costPrice BETWEEN 0.00 AND 1.00 
                    THEN p.costPrice * 1.0                              

                ELSE 
                    p.msrpPrice
            END
FROM product p                    
WHERE p.type = 1

这个UPDATE FROM使用case语句有什么问题？

2 个答案: