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.sharma@stripped <mailto:adarsh.sharma@stripped>> 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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