Thanks Anand,
Ananda Kumar wrote:
Why dont you create a new table where id < 2474,
rename the original table to "_old" and the new table to actual table
name.
I need to delete rows from 5 tables each > 50 GB , & I don't have
sufficient space to store extra data.
My application loads 2 GB data daily in my databases.
or
You need to write a stored proc to loop through rows and delete, which
will be faster.
Can U provide me a simple example of stored proc
Doing just a simple "delete" statement, for deleting huge data will
take ages.
Even the Create Index command on ID takes hours too complete.
I think there is no easiest way to delete that rows from mysql tables.
regards
anandkl
On Fri, Nov 4, 2011 at 12:52 PM, Adarsh Sharma
<adarsh.sha...@orkash.com <mailto:adarsh.sha...@orkash.com>> wrote:
Dear all,
Today I need to delete some records in > 70 GB tables.
I have 4 tables in mysql database.
my delete command is :-
delete from metadata where id>2474;
but it takes hours to complete.
One of my table structure is as :-
CREATE TABLE `metadata` (
`meta_id` bigint(20) NOT NULL AUTO_INCREMENT,
`id` bigint(20) DEFAULT NULL,
`url` varchar(800) DEFAULT NULL,
`meta_field` varchar(200) DEFAULT NULL,
`meta_value` varchar(2000) DEFAULT NULL,
`dt_stamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (`meta_id`)
) ENGINE=InnoDB AUTO_INCREMENT=388780373 ;
Please let me know any quickest way to do this.
I tried to create indexes in these tables on id, but this too
takes time.
Thanks
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