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From:Ananda Kumar Date:May 13 2008 7:40am
Subject:Re: Data Modelling
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what is the reason for creating main_dup. If your thinking of taking a
backup of all the changes from  main table, then the trigger also will have
to wait, till the locks on the main table are released.

This trigger would add another feather to the lock/load on the machine.

regards
anandkl


On 5/13/08, Krishna Chandra Prajapati <prajapatikc@stripped> wrote:
>
> Hi,
>
> Generally, in data modelling there are some independent table, user
> related
> tables, master tables and one main table which is related with most of the
> tables. Almost in all the queries main table is involved to fetch the
> `id`.
> In this way main table is used maximum. some times the main table gets
> locked due to the other query. When the hits on database server increases
> the locking time will increase.
>
> Is there any way to reduce the locking time of main table.
> for eg main_dup can be created. To reflect all the changes from main table
> to main_dup trigger can be used. So main_dup can be used to reduce the
> locking time of table.
>
> The above is my idea. Is there any other way to reduce the locking period.
>
> --
> Krishna Chandra Prajapati
> MySQL DBA,
> Ed Ventures e-Learning Pvt.Ltd.
> 1-8-303/48/15, Sindhi Colony
> P.G.Road, Secunderabad.
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> Email-id: prajapatikc@stripped
>

Thread
Data ModellingKrishna Chandra Prajapati13 May
  • Re: Data ModellingAnanda Kumar13 May
    • Re: Data ModellingKrishna Chandra Prajapati13 May
      • Re: Data ModellingBen Clewett13 May
        • Re: Data ModellingKrishna Chandra Prajapati13 May
  • Re: Data ModellingBen Clewett13 May
    • Re: Data ModellingKrishna Chandra Prajapati13 May