Partitioned tables

SQLServerCentral is supported by Red Gate Software Ltd.

Popular Topics

Home

Members

Calendar

Who's On

Home » SQL Server 2005 » Administering » Partitioned tables

Partitioned tables

Rate Topic

Display Mode

Topic Options

Author

Message

sunny.tjk

Posted Tuesday, September 11, 2012 3:13 PM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, May 15, 2013 6:26 PM
Points: 263, Visits: 866

We've a very large table and I'm thinking to partition it. Either one of these 3 main columns(appid, date or loan_custid) are used in the WHERE clause of the queries.
I've never implemented partitioning before, so my question is should I partition it by the date or appid or loan_custid?

Post #1357719

sunny.tjk

Posted Wednesday, September 12, 2012 11:56 AM

SSC Veteran

Group: General Forum Members
Last Login: Wednesday, May 15, 2013 6:26 PM
Points: 263, Visits: 866

Hi everyone,
Could someone please help me with this? I can provide more info if needed.

Post #1358147

s_bohari 44266

Posted Tuesday, September 18, 2012 1:34 AM

Forum Newbie

Group: General Forum Members
Last Login: Tuesday, December 18, 2012 1:37 PM
Points: 1, Visits: 10

Hi,
It all depends on your system. Difficult to say if you should do it by date, id or something else.

The last time I partioned a table I had two parts an historic part and one current, which was partioned by a integer flag that stated if it was a historic part or current.

Best regards,
Shakir

Post #1360597

TheSQLGuru

Posted Wednesday, September 19, 2012 8:08 AM

Hall of Fame

Group: General Forum Members
Last Login: Today @ 6:54 PM
Points: 3,578, Visits: 5,120

sunny.tjk (9/11/2012)

Partitioning is a VERY COMPLEX subsystem and it is VERY easy to get things messed up. Without professional guidance you are very unlikely to be successful in your endeavor. I have come across MANY clients and forum posters that attempted partitioning without proper help and were disappointed or worse. Some questions/recommendations:

1) WHY do you think you need to partition the table? You mention columns that are in a WHERE clause, making me believe you want to use partitioning as a "go fast" button. That is NOT what it was designed for!! It was built primarily to facilitate large table management and especially loading.

2) What is the data loading process for this table?

3) What is the exact and full create-table script for this table (including triggers, keys, indexes)?

4) I STRONGLY recommend you get a professional on board to help you understand your system and whether or not you NEED partitioning and then help you implement, maintain, monitor it correctly. It is quite possible that you simply need to TUNE your existing queries against this table or do other stuff to make things "go fast"!!

Best,

Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru at GMail

Post #1361383

opc.three

Posted Wednesday, September 19, 2012 3:07 PM

SSCertifiable

Group: General Forum Members
Last Login: Today @ 5:15 PM
Points: 6,720, Visits: 11,756

Following along with Kevin's post, think it through carefully. Here is a nice write up I recently found to help you consider all points of why you might employ partitioning, the benefits and the drawbacks:

How To Decide if You Should Use Table Partitioning (March 6, 2012) by Kendra Little

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

Believe you can and you're halfway there. --Theodore Roosevelt

Everything Should Be Made as Simple as Possible, But Not Simpler --Albert Einstein

The significant problems we face cannot be solved at the same level of thinking we were at when we created them. --Albert Einstein

1 apple is not exactly 1/8 of 8 apples. Because there are no absolutely identical apples. --Giordy

Post #1361639

GilaMonster

Posted Wednesday, September 19, 2012 3:10 PM

SSC-Dedicated

Group: General Forum Members
Last Login: Today @ 4:49 PM
Points: 37,722, Visits: 29,977

sunny.tjk (9/11/2012)

We've a very large table and I'm thinking to partition it.

Why?

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1361643

« Prev Topic | Next Topic »

Permissions