Question

UPDATE tblstoreitems SET price='499' WHERE TypeOrModel = 'A130';
UPDATE tblstoreitems SET price='599' WHERE TypeOrModel = 'A140';
UPDATE tblstoreitems SET price='1899' WHERE TypeOrModel = 'Alpha Style';
UPDATE tblstoreitems SET price='1699' WHERE TypeOrModel = 'Amethyst';
UPDATE tblstoreitems SET price='899' WHERE TypeOrModel = 'T18';
UPDATE tblstoreitems SET price='1499' WHERE TypeOrModel = 'Ace_f100';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Aura Fusion';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Axis';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='B100';    
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='B5';    
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='B8';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Breeze';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Breeze 2';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Bubble';
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel ='Burst 2.0';

Answer 1

使用以下查询将解决您的问题。

update tblstoreitems
set price = 
case 
when TypeOrModel  = 'A130' then 499
when TypeOrModel  = 'A140' then 599
when TypeOrModel  = 'Alpha Style' then 1899
end

Answer 2

我认为您正在使用不同的price值更新列TypeOrModel，如果您希望将其放在单个语句中，则可以在更新中使用case when

update tblstoreitems
set 
price = 
case 
 when TypeOrModel = 'A130' then '499'
 when TypeOrModel = 'A140' then '599'
 .......
 .......
 when TypeOrModel ='Burst 2.0' then '499'
end

Answer 3

您可以使用case表达式使用单个更新替换这些更新：

UPDATE tblstoreitems 
SET    price = CASE TypeOrModel
                WHEN 'A130' THEN '499'
                WHEN 'A140' THEN '599'
                -- All the others cases, snipped for clarity
                ELSE price END;

Answer 4

<强>查询

UPDATE tblstoreitems SET price=
CASE WHEN TypeOrModel IN 
(
    'A130','Aura Fusion','Axis','B100','B5','B8',
    'Breeze','Breeze 2','Bubble','Burst 2.0'
)
THEN 499
WHEN TypeOrModel IN ('A140') THEN 599
WHEN TypeOrModel IN ('Alpha Style') THEN 1899
WHEN TypeOrModel IN ('Amethyst') THEN 1699
WHEN TypeOrModel IN ('T18') THEN 899
WHEN TypeOrModel IN ('Ace_f100') THEN 1499
ELSE price
END;

<强> Fiddle demo

在一次执行中更新多个列

4 个答案: