MySQL在一个Query中组合了两个UPDATE查询

Question

I want to update status, but using one query !!

UPDATE myTable SET `status` = 0 WHERE `name` IN ('a', 'b', 'c', 'd')
UPDATE myTable SET `status` = 1 WHERE `name` NOT IN ('a', 'b', 'c', 'd')

Answer 1

You can use CASE statement.

UPDATE myTable
SET status = (CASE
                  WHEN `name` IN ('a','b','c','d') THEN '0'
                  WHEN `name` NOT IN ('a','b','c','d') THEN '1'
              END);

Answer 2

Make 'status' datatype boolean , default value 0 and for " name NOT IN ('a', 'b', 'c', 'd') "

use

UPDATE myTable SET `status` = 1 WHERE `name` NOT IN ('a', 'b', 'c', 'd');

You do not have to run two queries.