How To Create Partitioned Table?

Jul 16, 2001

I'm running sqlserver 2000 enterprise edition on windows 2000 and I need
to know, how to create partition table. Please give me a small partition table example.

Thanks,
Ranjan

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Unable To Create A Partitioned Indexed View

Jul 25, 2005

Hi,

While creating an indexed view with the command :

create unique clustered index idx_atrid on account_transactions (policy)

there is a check constraint on the policy column of the tables used in this view.

The following error is encountered

Cannot index the view 'test.dbo.account_transactions'. It contains one or more disallowed constructs.

Can anyone help?

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May 14, 2006

Hi,

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G

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Dec 17, 2007

I want to find a way to get partition info for all the tables in all the databases for a server. Showing database name, table name, schema name, partition by (maybe; year, month, day, number, alpha), column used in partition, current active partition, last partition (for date partitions I want to know if the partition goes untill 2007, so I can add 2008)

all I've come up with so far is:






Code Block

SELECT distinct o.name From sys.partitions p
inner join sys.objects o on (o.object_id = p.object_id)
where o.type_desc = 'USER_TABLE'
and p.partition_number > 1

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Apr 8, 2008

hello
i want to ask if the insertion of a record into a partion is slower than insertion it into a non partitioned table or not?
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Sep 14, 2007

Hello;


I have inserted 200m rows into a partitioned table using SSIS, the table has a [RecID] column which is an identity(1,1) primary key.
When I open the table, I see that RecId doesn't start from 1(its not ordered), it starts from 889823. But, when I query the table for RecID = 1, I can see that row.


Is it a typical behavior of a partitioned table? Or am I doing something wrong?


This is the query I used to create the partitioned table.



create partition function pf_LoadDate(Datetime)

as range right for

values ('01/01/1997','01/01/1999','01/01/2001','01/01/2002','01/01/2003',
'01/01/2004','01/01/2005','01/01/2006','01/01/2007')

--------------



create partition Scheme ps_RecBuyLoadDateScheme

as partition pf_LoadDate

to (FG1,FG1,FG1,FG1,FG2,FG2,FG2,FG3,FG3,FG3)


I'll appreciate any help.

Prok

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Jul 27, 1998

Hi,

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If I do the same update clause but on several rows then all the modifications are read by the log reader and the replication task goes ok.

What might be wrong?

-janne

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Nov 14, 2007

Hi all,

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Thanks
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Jun 12, 2015

I'm having a problem creating a partitioned table with a filestream column. I'm getting error: Cannot create table 'MyTable' since a partition scheme is not specified for FILESTREAM data

CREATE TABLE MyTable
(
IndexID BIGINT IDENTITY(1,1),
PartitionID SMALLINT,
IndexGUID UNIQUEIDENTIFIER NOT NULL ROWGUIDCOL

[code]...

I actually managed to get the table created. The table below gets created. I had to specifically indicate that the unique constraint is on [PRIMARY] (non-partitioned) and create a partition scheme in the filestram filegroup. However my problem now is with partition switching. I successfully created a non-partitioned staging table identical to the partitioned table, but the switching operation doesn't work.

CREATE TABLE MyTable
(
IndexID BIGINT IDENTITY(1,1),
PartitionID SMALLINT,
IndexGUID UNIQUEIDENTIFIER NOT NULL ROWGUIDCOL
CONSTRAINT DF_MyTable_IndexGUID DEFAULT (NEWID())

[code]...

I get error:

'ALTER TABLE SWITCH' statement failed. The table 'MyTable' is partitioned while index 'UQNP_MyTable_IndexGUID' is not partitioned.

However, I can't drop the non-partitioned unique index on MyTable as it violates the filestream, and would make the table unusable.

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Nov 13, 2007

I began with a partition function as follows:

CREATE PARTITION FUNCTION [TimeTicksRangePFN](bigint) AS RANGE RIGHT FOR VALUES (633294720000000000, 633320640000000000, 633347424000000000, 633374208000000000, 633399264000000000)

These numbers happen to correspond to the dates 11/1/7, 12/1/7, 1/1/8, 2/1/8 and 3/1/8 in ticks respectively.

I began with a partition scheme as follows:

CREATE PARTITION SCHEME [TimeTicksRangePScheme] AS PARTITION [TimeTicksRangePFN] TO ([FG_xxx_EventArchive00001], [FG_xxx_EventArchive00002], [FG_xxx_EventArchive00003], [FG_xxx_EventArchive00004], [FG_xxx_EventArchive00005], [PRIMARY])

While running my “sliding window script� , which I hoped would 1) roll off the oldest partition of my EventArchive table and 2) add a new partition with a tick boundary that equates to 3/5/8, I get an error related to my switch out table's index, the same table's Filegroup and Primary.

After getting the error, I scripted the partition function as a create in mgt studio and got…

CREATE PARTITION FUNCTION [TimeTicksRangePFN](bigint) AS RANGE RIGHT FOR VALUES (633320640000000000, 633347424000000000, 633374208000000000, 633399264000000000, 633402720000000000)

...which looks like what I had intended cuz the last boundary is the tick representation of 3/5/8 and the oldest has rolled off

scripting the scheme produced...

CREATE PARTITION SCHEME [TimeTicksRangePScheme] AS PARTITION [TimeTicksRangePFN] TO ([FG_xxx_EventArchive00001], [FG_xxx_EventArchive00003], [FG_xxx_EventArchive00004], [FG_xxx_EventArchive00005], [PRIMARY], [FG_xxx_EventArchive00001])

which looks nothing like what I intended, I thought I’d end up with …00002,…00003,…00004,…00005,…00001,PRIMARY

the script steps that seem most relevant start at the 5th step as follows...

5) creates table [dbo].Switch on the switch out filegroup with columns, PK and indexes matching exactly those of [dbo].EventArchive

6) switches partition 1 of [dbo].EventArchive to [dbo].Switch

7) ALTER PARTITION FUNCTION TimeTicksRangePFN() MERGE RANGE (633294720000000000) --this was the oldest date corresponding to 11/1/7

8) truncates [dbo].Switch

9) drops all indexes on [dbo].Switch except a clustered index (IX_TimeTicks), leaves PK constraint alone

10) ships the new data whose values range from 3/1/8 to less than 3/5/8 to [dbo].Switch and deletes them from their source

11) recreates all non clustered indexes on [dbo].Switch

12)ALTER TABLE [dbo].[Switch] WITH CHECK ADD CONSTRAINT RangeCK CHECK ([TimeTicks] < the number of ticks represented by 3/5/8)

13)ALTER PARTITION SCHEME TimeTicksRangePScheme NEXT USED [FG_xxx_EventArchive00001] --fg isnt really hardcoded

14)ALTER PARTITION FUNCTION TimeTicksRangePFN() SPLIT RANGE (the number of ticks represented by 3/5/8)

15)ALTER TABLE [dbo].[Switch] SWITCH TO [dbo].[EventArchive] PARTITION 5

step 15 is the one that fails with message "ALTER TABLE SWITCH statement failed. index 'xxx.dbo.Switch.IX_TimeTicks' is in filegroup 'FG_xxx_EventArchive00001' and partition 5 of index 'xxx.dbo.EventArchive.IX_TimeTicks' is in filegroup 'PRIMARY'.

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Thanks
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Oct 8, 2007


Hello,

The illustration below is for a customer dedupification project.
The Source file, containing customer name and address records, is conditionally split based on 7 ranges of substring(city,1,2) to distribute the load across 7 different threads for parallelization. Each customer record in the source file
is looked up against a reference table named Location_Stage for its existence using the Fuzzy Lookup
transformation.

The reference table Location_Stage has around 10 miilion+ records. The source file would normally have around 1 million
records.

I am wondering :

- if it would be possible to partition the Match Index of the reference table (NOT the reference table) into
7 partitions based on 7 ranges of substring(city,1,2) and maintain these partitions on different drives?
- if it is possible to specify a particular partition to be used by a FzLkup transformation?
- if the partitioning approach will improve the performance of the Fuzzy Lookups?



Source File Feed
|
Split data into 7 groups based on substring(city,1,2)
|
------------------------------------------------------------------------------------------------------------------------------------------
| | | | | | |
UnionAll UnionAll UnionAll UnionAll UnionAll UnionAll UnionAll
| | | | | | |
FzLkup FzLkup FzLkup FzLkup FzLkup FzLkup FzLkup
| | | | | | |
Split Split Split Split Split Split Split
| | | | | | |
------------- -------------- -------------- -------------- -------------- -------------- --------------
| | | | | | | | | | | | | |
<- - - - - - - Write the Canonicals and Dupes from each of these splits into database - - - - - - - - ->


Please advice.
Thanks.

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Jul 20, 2005

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Nov 7, 2007

I have a partition function as follows:
CREATE PARTITION FUNCTION [TimeTicksRangePFN](bigint) AS RANGE RIGHT FOR VALUES (633294720000000000, 633320640000000000, 633347424000000000, 633374208000000000, 633399264000000000)

These numbers happen to correspond to the dates 11/1/7, 12/1/7, 1/1/8, 2/1/8 and 3/1/8 in ticks respectively.

I have a partition scheme as follows:
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After running my €œsliding window script€? , which I wanted to switch out the lowest partition with, and add a new partition with a new tick boundary that equates to 3/5/8, I get an error saying that 1 of my switch out table€™s indexes is in filegroup 1 but partition 5€™s index of the same name is in PRIMARY. At this point the partition function looks like€¦

CREATE PARTITION FUNCTION [TimeTicksRangePFN](bigint) AS RANGE RIGHT FOR VALUES (633320640000000000, 633347424000000000, 633374208000000000, 633399264000000000, 633402720000000000) which looks like what I had intended cuz the last boundary is tick representation of 3/5/8 and the oldest has rolled off

and the scheme looks like€¦

CREATE PARTITION SCHEME [TimeTicksRangePScheme] AS PARTITION [TimeTicksRangePFN] TO ([FG_xxx_EventArchive00001], [FG_xxx_EventArchive00003], [FG_xxx_EventArchive00004], [FG_xxx_EventArchive00005], [PRIMARY], [FG_xxx_EventArchive00001]) which looks nothing like what I intended, I thought I€™d end up with €¦00002,€¦00003,€¦00004,€¦00005,€¦00001,PRIMARY

the relevant script steps are...

5) creates table [dbo].Switch on the switch out filegroup with columns, PK and indexes matching those of [dbo].EventArchive (allows default location for indexes)
6) switches partition 1 of [dbo].EventArchive to [dbo].Switch
7) ALTER PARTITION FUNCTION TimeTicksRangePFN() MERGE RANGE (633294720000000000)
8) truncates [dbo].Switch
9) drops all indexes on [dbo].Switch except a clustered index (IX_TimeTicks), leaves PK constraint alone
10) ships the new data whose values range from 3/1/8 to less than 3/5/8 to [dbo].Switch and deletes them from their source
11) recreates all non clustered indexes on [dbo].Switch
12)ALTER TABLE [dbo].[Switch] WITH CHECK ADD CONSTRAINT RangeCK CHECK ([TimeTicks] < the number of ticks represented by 3/5/8)
13)ALTER PARTITION SCHEME TimeTicksRangePScheme NEXT USED [FG_xxx_EventArchive00001]
14)ALTER PARTITION FUNCTION TimeTicksRangePFN() SPLIT RANGE (the number of ticks represented by 3/5/8)
15)ALTER TABLE [dbo].[Switch] SWITCH TO [dbo].[EventArchive] PARTITION 5

step 15 is the one that fails with message "ALTER TABLE SWITCH statement failed. index 'xxx.dbo.Switch.IX_TimeTicks' is in filegroup 'FG_xxx_EventArchive00001' and partition 5 of index 'xxx.dbo.EventArchive.IX_TimeTicks' is in filegroup 'PRIMARY'.

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GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO

[code]....

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///////////--SQLQueryCroomLabData.sql--///////////////////////////
USE MyDatabase
GO
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AnalyteName varchar(25) NOT NULL,
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GO
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VALUES (12, 'MW7', 'Dichloroethene', 1.00)
VALUES (13, 'MW7', 'Trichloroethene', 1.00)
VALUES (14, 'MW7', 'Chloroform', 1.00)
VALUES (15, 'MW7', 'Methylene Chloride', 1.00
VALUES (16, 'TripBlank', 'Acetone', 1.00)
VALUES (17, 'TripBlank', 'Dichloroethene', 1.00)
VALUES (18, 'TripBlank', 'Trichloroethene', 1.00)
VALUES (19, 'TripBlank', 'Chloroform', 0.76)
VALUES (20, 'TripBlank', 'Methylene Chloride', 0.51)
GO
//////////Parse///////////
Msg 102, Level 15, State 1, Line 5
Incorrect syntax near '6.2'.
Msg 156, Level 15, State 1, Line 4
Incorrect syntax near the keyword 'VALUES'.
////////////////Execute////////////////////
Msg 102, Level 15, State 1, Line 5
Incorrect syntax near '6.2'.
Msg 156, Level 15, State 1, Line 4
Incorrect syntax near the keyword 'VALUES'.

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