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Re: Delete data from databases

From: Ananda Kumar <anandkl(at)gmail.com>
Date: Thu Jul 05 2007 - 03:28:04 EDT


Hi Krishna,
If you dont have a date column, then on what basis you would be deleting data older than 6 months.

As i mentioned earlier, if the no. of records in the table is less then you can use direct delete statment.

On 7/5/07, krishna chandra prajapati <prajapatikc@gmail.com> wrote:
>
> Hi All,
> Some of the tables have the date column. what if the table doesn't have
> the
> date column. The number of table in the database is more than 200. What
> else
> is possible.
>
> Is there is any other way to do this except stored procedure
>
> Regards,
> Krishna
>
> On 7/5/07, Ananda Kumar <anandkl@gmail.com> wrote:
> >
> > Hi Krishna,
> > You can write a stored proc, where, in the main cursor, select column
> > having unique value for the records to be deleted,
> > For example
> >
> > select item_id from table_name where <date_column> < sysdate - 180.
> >
> > This cursor will give you value of a column older than 180 days,
> >
> > and inside the main stored proc, you can use a delete statment, to
> delete
> > each item_id.
> >
> > delete from <table_name> where item_id=<variable_name>;
> >
> > commit for every 1000 or 10000 records, so that there is no rollback
> > issue.
> >
> > Also if data is very less than you can directly use the delete statment
> > rather than doing this in stored proc.
> >
> > regards
> > anandkl
> >
> >
> > On 7/5/07, krishna chandra prajapati <prajapatikc@gmail.com > wrote:
> > >
> > > Hi All,
> > >
> > > I am just trying to delete one year data from many databases and the
> no.
> > > of
> > > tables is more than 200. I want to keep only six months data on the
> > > mysql
> > > server. Is there is any way to do this.
> > > Please help me.
> > >
> > > Regards,
> > > Krishna
> > >
> >
> >
>
Received on Thu Jul 5 03:30:28 2007

This archive was generated by hypermail 2.1.8 : Thu Jul 05 2007 - 03:40:02 EDT


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