UPDATE `table_name` SET `field1` = 'value1' WHERE `field2` = 'value2'
UPDATE `table_name` SET `field1` = 'value1' WHERE `field2` IN ('value2', 'value3')
mysql 並無提供直接的方法來實現批量更新,可是能夠用點小技巧來實現:html
UPDATE `table_name` SET `field1` = CASE `id` WHEN 1 THEN 'value1' WHEN 2 THEN 'value2' END WHERE `id` IN (1,2,3);
若是更新多個字段的話,在上面的基礎上修改一下就能夠了:mysql
UPDATE `table_name` SET `field1` = CASE `id` WHEN 1 THEN 'value1' WHEN 2 THEN 'value2' END, `field2` = CASE `id` WHEN 1 THEN 'value3' WHEN 2 THEN 'value4' END, WHERE `id` IN (1,2,3);
參考:sql
PS:我的博客-批量更新、插入語句code