Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
360 views
in Technique[技术] by (71.8m points)

ddl - Adding multiple columns AFTER a specific column in MySQL

I need to add multiple columns to a table but position the columns after a column called lastname.

I have tried this:

ALTER TABLE `users` ADD COLUMN
(
    `count` smallint(6) NOT NULL,
    `log` varchar(12) NOT NULL,
    `status` int(10) unsigned NOT NULL
) 
AFTER `lastname`;

I get this error:

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 ') AFTER lastname' at line 7


How can I use AFTER in a query like this?

Question&Answers:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Try this

ALTER TABLE users
ADD COLUMN `count` SMALLINT(6) NOT NULL AFTER `lastname`,
ADD COLUMN `log` VARCHAR(12) NOT NULL AFTER `count`,
ADD COLUMN `status` INT(10) UNSIGNED NOT NULL AFTER `log`;

check the syntax


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...