錯誤1064：在mysql工作台中更新帶有列和數字的表

Question

我需要用2值update一個表，其中一個是另一個表的列，第二個是數字（ constant 1 ），這是我的代碼：

insert into table (col1, col2)
select colA from table2, '1' 
 where DATA_FORMAT(table2.created_at, '%y %m %d') = DATA_FORMAT(Now(), '%y %m %d');

錯誤消息是：

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''0', '1', '1'  where DATA_FORMAT(newsletter.created_at, '%y %m %d') = DATA_FORMA' at line 2

Answer 1

嘗試這個：

insert into table (col1, col2)
select colA, '1' as ColB from table2
where DATE_FORMAT(table2.created_at, '%y %m %d') = DATE_FORMAT(Now(), '%y %m %d');