很基本的MySQL查詢 - 替換值

Question

這必須是非常簡單的：

在MySQL -

UPDATE exp_channel_data

哪裏entry_id是10169 10860

如果custom_field是價值18

之間

用17替換

有什麼想法？我真的很苦惱我擁有的小知識！

Answer 1

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

我其實不記得是否支持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語句10169和10860使用。

BETWEEN運算符的功能爲'大於或等於'[NUMBER]且'小於或等於'[NUMBER]。

例如BETWEEN：

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