sql - Update multiple rows in a single MySQL query

Question

I am trying to run this:

UPDATE test 
SET col2=1 WHERE col1='test1', 
SET col2=3 WHERE col1='test2';

The error I am getting:

[Err] 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 '

My table:

CREATE TABLE `test` (
    `col1` varchar(30) NOT NULL,
    `col2` int(5) DEFAULT NULL,
    PRIMARY KEY (`col1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

It’s something about , at the end of the first row. When I changed it to ;, it didn’t recognize col2. How can I do this in one query?

Answer 1

This is most clear way

UPDATE test
SET col2 = CASE col1
WHEN 'test1' THEN 1
WHEN 'test2' THEN 3
WHEN 'test3' THEN 5
END,
colx = CASE col1
WHEN 'test1' THEN 'xx'
WHEN 'test2' THEN 'yy'
WHEN 'test3' THEN 'zz'
END
WHERE col1 IN ('test1','test2','test3')