Is It Good Practice That I use TableName-Month-Year Convention
I realize the READ performance goes down dramatically when my table goes large. Every new day goes on, my table can increase x millions of new rows.
I was wondering whether this is good practice I can design my database in this way?
Instead of having
lot <-> unit <-> measurement
Can I have
lot-March-2010 <-> unit-March-2010 <-> measurement-March-2010
lot-April-2010 <-> unit-April-2010 <-> measurement-April-2010
(1) That's mean in my stored procedure, I need to dynamically generate the table name. Is this the "dynamic SQL" to correct way, to dynamically generate table name : http://www.postgresql.org/docs/8.1/interactive/ecpg-dynamic.html
(2) Is this consider a good approach, to overcome speed problem (especially read speed). Any potential problem I should put an eye on, before I implement this strategy?
Thanks and Regards
Yan Cheng CHEOK
Hi,
Am 13.01.2010 09:16, schrieb Yan Cheng Cheok:
I realize the READ performance goes down dramatically when my table goes large. Every new day goes on, my table can increase x millions of new rows.
I was wondering whether this is good practice I can design my database in this way?
Instead of having
lot<-> unit<-> measurement
Can I have
lot-March-2010<-> unit-March-2010<-> measurement-March-2010
lot-April-2010<-> unit-April-2010<-> measurement-April-2010(1) That's mean in my stored procedure, I need to dynamically generate the table name. Is this the "dynamic SQL" to correct way, to dynamically generate table name : http://www.postgresql.org/docs/8.1/interactive/ecpg-dynamic.html
(2) Is this consider a good approach, to overcome speed problem (especially read speed). Any potential problem I should put an eye on, before I implement this strategy?
You might combine this approach with table partitioning to give you a
cleaner view to your data like this:
http://www.postgresql.org/docs/current/static/ddl-partitioning.html
in your situation it would probably make sense to put the actual
partitiones into a separate schema to keep your main work area clean
from clutter.
HTH
Tino