mysql 如果条件满足

Question

I am using MySQL (phpmyadmin) for my database. I want to change the value in a field depending on another's field info.

My table would be "info" and my column1 store_number , column2 store_name and column3 state , so if in field store_name there is a character string like Store number 3 , then change column1 value to 3 .

I tried

UPDATE info
IF store_name LIKE "%store number 3 %"
SET store_number = '3'
WHERE state LIKE "%california%"

I want to change the store number in all stores in california depending in the store name.

Answer 1

You were on the right track with your WHERE clause already. You could move your conditional logic to be part of it to get:

UPDATE info
SET store_number='3'
WHERE state LIKE '%california%' AND 
  store_name LIKE '%store number 3%'