Appropriate range for partitioning

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Appropriate range for partitioning

mah_j

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Points: 2931
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December 9, 2012 at 3:54 am

#285922

Hi
I have a large table which there is just select and insert on it.It has a field named 'TranType'(int) and for some of the types we just have insert and no select at all.
I want to use partitioning to separate this data into another file.but there is not any particular range for values . For example the types with no select are:1004,1006,1007,1009,1010,2000
How can i use the CREATE PARTITION FUNCTION in this case?
CREATE PARTITION FUNCTION PartitionDB_PartitionRange (INT)
AS RANGE LEFT FOR
VALUES (????);
Another basic question about partitioning:
I have a table like this
CREATE TABLE [dbo].[Trans]
(
[Num] [int] NOT NULL,
[Date] [datetime] NOT NULL,
[ID] [bigint] NULL,
[Kind] [int] NULL,
[Success] [bit] NULL,
[CNum] [nvarchar](20) NULL,
[Data] [nvarchar](4000) NULL,
[Counter] [int] NOT NULL,
127.0.0.1 [nvarchar](25) NULL,
[Result] [int] NULL,
CONSTRAINT [PK_Trans] PRIMARY KEY CLUSTERED([Num] ASC, [Date] ASC)
WITH (
PAD_INDEX = OFF,
STATISTICS_NORECOMPUTE = OFF,
IGNORE_DUP_KEY = OFF,
ALLOW_ROW_LOCKS = ON,
ALLOW_PAGE_LOCKS = ON
) ON [PRIMARY]
) ON [PRIMARY]
so it has a Clustered Index For PRIMARY KEY and 6 NonClustered Indexes.
for partitioning on the feild "kind" should i drop all the FK and PRIMARY KEY,and create a new CLUSTERED Index on kind feild?
there isnt any way that i dont have to drop all this indexes and FK s?

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Gail Shaw SSC Guru Points: 1004504 More actions · Answer 1

First question. Why are you partitioning? What's the purpose, what's the goal?

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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

mah_j SSCrazy Points: 2931 More actions · Answer 2

There is a sharply increase in the size of transactions that is inserted in that table,and if i can do partitioning the remaining range of kind field will be half,and the performance of select statements on the table will be increased,also i think the page split would be decreased in the partition that i want to select from it.

Gail Shaw SSC Guru Points: 1004504 More actions · Answer 3

If you are partitioning with the idea that queries are automatically faster on partitioned tables, don't waste your time.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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

Bhuvnesh SSC Guru Points: 59351 More actions · Answer 4

mah_j (12/10/2012)
also i think the page split would be decreased in the partition that i want to select from it.

NO , partitoning is not related with page spliting and

for partitiioning see this http://www.brentozar.com/archive/2012/03/how-decide-if-should-use-table-partitioning/

-------Bhuvnesh----------
I work only to learn Sql Server...though my company pays me for getting their stuff done;-)