Comments on: MySQL- Remove Duplicate Rows

By: kandar

kandar — Mon, 08 Feb 2010 01:23:51 +0000

thanks for your response. I’ll be wait for that article.

By: Maruf

Maruf — Sat, 06 Feb 2010 08:44:27 +0000

@Kevin,
Good point

@Kandar,
You’ll need to use the IGNORE function, while also setting the correct “unique” fields.

I will write an article on this shortly. Not sure I can explain how to do it without a live example.

Kind regards.

By: kandar

kandar — Sat, 06 Feb 2010 05:09:06 +0000

Great! my question is how to prevent it happen again in the future?

By: Kevin Pajak

Kevin Pajak — Fri, 05 Feb 2010 23:39:22 +0000

Good article! One point of clarification to your readers though: you will want to be sure that the name of the column you are entering data into matches the name of the column as you set it up when you were creating your table. Ex: You created the table thusly:
CREATE TABLE `DB_NAME`.`postcodes2` (
`postcodenospace` varchar( 10 ) NOT NULL ,
`longitude` varchar( 15 ) NOT NULL ,
`latitude` varchar( 15 ) NOT NULL
)

So when you INSERT data it would be

INSERT INTO
postcodes2
(
postcodenospace,
longitude,
latitude
)

Nice work – thanks again for posting .