SQLSTATE[21000]: Cardinality violation: 1241 Operand should contain 1 column(s)

Question

First, I know what this error means, but I don't understand why it's appearing. I use this query to update data (it is select generated by framework).

UPDATE `achievement` SET `name`='OKer', `description`='sadsad',`IdAchievement`='2' WHERE (`IdAchievement`, '2')

I have these records in my database:

IdAchievement | name | description | IdGame
1 | Super achievement| description | 1
2 | OK| sadsad | 1
5 | dsfs| | 1

IdAchievement is a primary key, IdGame is a foreign key to the Game table.

Can you help me please? I really do not understand it...

Answer 1

将查询更改为以下内容：

UPDATE `achievement` SET `name`='OKer', `description`='sadsad',`IdAchievement`='2' WHERE `IdAchievement` = '2'