很基本的MySQL查询 - 替换值

Question

这必须是非常简单的：

在MySQL -

UPDATE exp_channel_data

哪里entry_id是10169 10860

如果custom_field是价值18

之间

用17替换

有什么想法？我真的很苦恼我拥有的小知识！

Answer 1

UPDATE exp_channel_data 
SET custom_field = 17 
WHERE custom_field = 18 
AND entry_id BETWEEN 10169 AND 10860 

我其实不记得是否支持BETWEEN;如果不是：

UPDATE exp_channel_data 
SET custom_field = 17 
WHERE custom_field = 18 
AND entry_id >= 10169 
AND entry_id <= 10860 

Answer 2

UPDATE exp_channel_data 
SET custom_field = 17 
WHERE custom_field = 18 AND entry_id > 10169 AND entry_id < 10860 

如果你想包括BETWEEN语句10169和10860使用。

BETWEEN运算符的功能为'大于或等于'[NUMBER]且'小于或等于'[NUMBER]。

例如BETWEEN：

UPDATE exp_channel_data 
SET custom_field = 17 
WHERE custom_field = 18 AND entry_id BETWEEN 10169 AND 10860