How To Attach The Existing Table To New Partition Function/scheme?
May 26, 2008
Normally we create a new table for tabler partitioning, like:
Code Snippet
CREATE TABLE [dbo].[Sales]
(
[SalesID] [int] IDENTITY(1,1) NOT NULL,
[SalesDate] [datetime] NOT NULL,
[col_01] varchar(50) NULL,
[col_02] varchar(50) NULL,
..
) ON [ps_Sales](SalesDate)
GO
with
Code SnippetCREATE PARTITION SCHEME [ps_Sales]
AS
PARTITION PFN_Sales TO ([FG_20080501], [FG_20080516], [FG_20080601], [FG_20080616],
[FG_20080701], [FG_20080716], [FG_20080801], [FG_20080816],
[FG_20080901], [FG_20080916], [FG_20081001], [FG_20081016])
But what if I have [dbo].[Sales] existed in db, that have attached to [PRIMARY]?
Alter table?
or I need to create a temp table first?
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Sep 4, 2007
Hi ,
I had a table which is going to burst, and of course performance issue is come in to place. and now we thinking to apply to partition method into this table.
So is that possible to create a partition scheme and against the existing table? and how is the T-SQL statement will be look like.
Thanks for anyone for giving some clue...
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Jun 9, 2015
I have a non-partitioned table (TableToPartition) and I want to apply an existing partition scheme (PartSch) to it using a query. I didn't find any option so I used the StorageCreate Partition wizard to generate the script.why this clustering magic needed if it is dropped at the end? Isn't there another way without indexing to partition a table, say something with ALTER TABLE? (SQL Server 2012)
BEGIN TRANSACTION
CREATE CLUSTERED INDEX [ClusteredIndex_on_PartSch_635694324610495157] ON [dbo].[TableToPartition]
(
[ID]
)WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF) ON [PartSch]([ID])
DROP INDEX [ClusteredIndex_on_PartSch_635694324610495157] ON [dbo].[TableToPartition]
COMMIT TRANSACTION
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Jul 10, 2014
How to add some more ranges to existing partition schema and function?
Already My table partitioned on date ranges,
6 partitions , each partition contains 6 moths data, so total data is 3 years.
i.e. 1 partition data- from jan2012 to Jun2012
2 partition data- from july2012 to dec2012
3 partition data- from jan2013 to Jun2013
4 partition data- from july2013 to dec2013
5 partition data- from jan2014 to Jun2014
6 partition data- from july2014 to dec2014
After Jan2015 data will go to Primary file group(Default)
Now customer wants to add two more file groups with these partitions ranges, i.e. jan2015 to jun15 and Jul15 to dec15.
File group and ndf file adding is OK, But
how to alter partition scheme and partition function with these additional ranges to existing partition function and scheme?
partitioned table size is 200 GB.
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Feb 20, 2007
I can't seem to find a way to do the following:create table part_table (col1 int,col2 datetime) on psX (datename(week,col2))I want to partition based on the week number of a date field.So if I enter in data like the following in my part_table:(1, 1/1/2007) should go into partition 1 for week #1(52, 12/21/2007) should go into partition 52 for week #52 of the yearI tried adding in a computed column, but it says its nondeterministic.
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Feb 13, 2008
How do you alter the table to use the new partition (I know ALTER TABLE is in there but BOL doesn't give a valid example with the move option)? I can create the partition but I want to apply it to an existing table with no partition?
Thanks
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May 9, 2010
Is it possible to use a variable to specify the filegroup in the ALTER/CREATE PARTITION SCHEME command?
I want the partition scheme to use the default filegroup for ALTER and CREATE PARTITION SCHEME. At the time the script is created, I don't know the default filegroup in the database.
My code:
declare @fileGroupName VARCHAR(50) = (select top 1 name from
sys.filegroups where is_default = 1)
ALTER PARTITION SCHEME MyScheme NEXT USED @fileGroupName
Is failing:
Incorrect syntax near '@fileGroupName'.
Q: Is it possible to use a variable for the filegroup in the ALTER/CREATE commands? Is so, what is the correct syntax?
Q: If using a variable is not possible, is there another way to specify the default filegroup?
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May 21, 2008
I've create a partition function and a partion scheme for my database.
Now I would like to change an existing table to use these partition.
The table is replicated.
How can I do this?
Thanks
Markus
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Mar 4, 2015
Can we create the Partition on Existing Table?e.g Create table t ( col1 number(10,0), Col2 Varchar(10)) ;After the table Creation can we alter the table to partition the table.
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May 28, 2015
Is it possible to partition an existing table on a foreign key (datetime) column? Also would partition switching work?
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Jun 22, 2015
I have some table that need to be partitioned and archive one of the partitions.
I did this in Oracle several years ago but not in SQL Server.
I'm looking for a basic example on how to do this.
I know the basic steps but the examples that I found on the Web were not quite what I'm looking for.
[url][/
Partition an existing SQL Server Table
url]
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Sep 15, 2015
I have 3 columns. I would like to update a table based on job_cd and permit_nbr column. if we have same job_cd and permit_nbr, reference number should be same else it should take max(reference number) from the table +1 for all rows where reference_nbr column is null
job_cdpermit_nbrreference_nbr
ABC1 990 100002
ABC1 990 100002
ABC1991100003
ABC1992100004
ABC1993100005
ABC2880100006
ABC2881100007
ABC2881100007
ABC2882100008
ABC2882100008
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Feb 5, 2008
I have the following insert query which works great. The purpose of this query was to flatten out the Diagnosis codes (ex: SecDx1, SecDx2, etc.) [DX_Code field] in a table.
Code Snippet
INSERT INTO reports.Cardiology_Age55_Gender_ACUTEMI_ICD9
SELECT
Episode_Key,
SecDX1 = [1],
SecDX2 = [2],
SecDX3 = [3],
SecDX4 = [4],
SecDX5 = [5],
SecDX6 = [6],
SecDX7 = [7],
SecDX8 = [8],
SecDX9 = [9],
SecDX10 = [10],
SecDX11 = [11],
SecDX12 = [12],
SecDX13 = [13],
SecDX14 = [14],
SecDX15 = [15]
FROM (SELECT
Episode_Key, DX_Key,
ROW_NUMBER() OVER ( PARTITION BY Episode_Key ORDER BY DX_Key ) AS 'RowNumber', DX_Code
FROM srm.cdmab_dx_other
WHERE Episode_key is not null
) data
PIVOT
( max( DX_Code ) FOR RowNumber IN ( [1], [2], [3], [4], [5], [6],
[7], [8], [9], [10], [11], [12], [13], [14], [15] )) pvt
ORDER BY Episode_Key
The query below also works fine by itself. You may notice that the Episode_Key field appears in both the query above and below therefore providing a primary key / foreign key relationship. The srm.cdmab_dx_other table also appears in both queries. I would like to add the fields in the select statement below to the select statement above. Using the relationships in my FROM statements, can anyone help me figure this one out?
Code Snippet
SELECT
e.episode_key,
e.medrec_no,
e.account_number,
Isnull(ltrim(rtrim(p.patient_lname)) + ', ' ,'')
+
Isnull(ltrim(rtrim(p.patient_fname)) + ' ' ,'')
+
Isnull(ltrim(rtrim(p.patient_mname)) + ' ','')
+
Isnull(ltrim(rtrim(p.patient_sname)), '') AS PatientName,
CONVERT(CHAR(50), e.admission_date, 112) as Admit_Date,
CONVERT(CHAR(50), e.episode_date, 112) as Disch_Date,
e.episode_type as VisitTypeCode,
d.VisitTypeName,
convert(int, pm.PatientAge) as PatientAge,
pm.PatientAgeGroup,
pm.patientsex,
p.race
FROM srm.episodes e inner join
srm.cdmab_dx_other dxo on dxo.episode_key=e.episode_key inner join
srm.cdmab_base_info cbi on cbi.episode_key=e.episode_key inner join
srm.item_header ih on ih.item_key = e.episode_key inner join
srm.patients p on p.patient_key = ih.logical_parent_key inner join
ampfm.dct_VisitType d on d.VisitTypeCode=e.episode_type inner join
dbo.PtMstr pm on pm.AccountNumber = e.Account_Number
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Dec 4, 2007
Hi,
I've having some baffling problems with a java applicaiton!
I have an application server called WA01 which used to access two tables on an MS SQL 2000 server via a scheme login. The two tables are:
_PurchaseOrderInterface
_PurchaseInvoiceInterface
Both tables were owned by the scheme user, with enough permissions to read & write. The java application on server WA01 could happily read the data within the tables and write a bit flag back to each row.
The MS database has been moved to a new server which no longer allows the java application on server WA01 to access the tables via the scheme login, the only way the java app can view and update the tables is by changing the owner of the tables to dbo. The new server is still MS SQL 2000, with comparible security settings.
The java app keeps complaing of an unknown source when trying to access via scheme, is this a domain trust issue between the two servers? Any ideas would be welcomed. I'm not an SQL expert but have a good grasp of the security structure etc.
Regards,
Alan
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Aug 28, 2015
I'm currently stuck with a table that has 350 mil records. Querying this table is insanely slow so I had a better look at existing yearly partitioning. I already managed to partition on a month level which increased the performance/querrying a lot. I did this on the staging table where I used an alter statement to split the 2015 partition by 12 months.
However, in our project we used Data Vault. This means that we have 4 tables (hub, sathub, link, satlink), all carrying 350 mil records. The problem is that altering the partition function does not work. The server cannot handle this action. What the best way is to do this, without having to drop/reload all tables.
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Jun 3, 2004
In SQL Server 2000, I would like to attach a Database that is the file of the Database on another system. I made a copy of my Client's Database at his site. Now I would like to attach it to my server and then copy the data from my Client's DB to mine.
The only problem is they have the same file names, so when I try to attach the copy I get an error message. Is there any way to change the name of the data file and log file that a database points to so that I can attach it to my Server?
Thanks in advance for your help!
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Jun 14, 2007
Hi,
I'm wondering if SSIS can capture the table schema structure, including the primary keys, foreign keys and indexes applied from the source table to the destination table? My source tables will be coming from AS400/DB2 and I'm using OLEDB Provider for DB2. I would like to automatically generate the table schema of my destination table in SQL Server 2005 (thru SSIS) as similar as my source table from AS400.
Thanks,
May Lanie
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Mar 30, 2006
Hi All,
Can any body tell me that how we can attach IDENTITY property to an existing int column
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Jan 1, 2006
I have a data file, call it Data.mdf, that I am accessing through Visual Studio. It does not show up in SQL Server 2000 Enterprise Manager.
How can I get it assigned to, or imported into, the local server so I can manage it?
Thanks
Glen
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Feb 25, 2008
Guys,
I have names in the database which I want partition by last name - for example last names starting with A, B, C, D should go to the file group 1. last names starting with E, F, G, H should go to file group 2.
I am trying to use the following function - but do I specify in the function that last names with with A, B, C, D should go to the file group 1
CREATE PARTITION FUNCTION myRangePF3 (char(20))
AS RANGE RIGHT FOR VALUES ('EX', 'RXE', 'XR');
Is there any way to modify partition function to accomplish this?
Any suggestions and inputs would help
Thanks
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May 16, 2008
Am I correct in assuming, in partitioning scenarion - the NUMBER OF PARAMETERS in a partitioning function is equal to number of file groups?
------------------------
I think, therefore I am - Rene Descartes
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Oct 29, 2015
I am facing issue in generating total sum and daily sum from table ThresholdData.
DailyTransactionAmount should be sum of todays amount in the table
TransactionAmount should be sum of all amount in the table.
Basically,
1. I don't want to scan ThresholdData table twice.
2. I don't want to create temporary table/table variable/CTE for this.
3. Is there is any way to make it done in single query.
I hope, where criteria is not possible in partition function. I am trying query something as given below,
SELECTÂ Â TransactionDate,
  TransactionAmount,
  ROW_NUMBER() over (order by TransactionDate) AS TransactionCount,
  SUM(TransactionAmount) over (partition by id ) AS TransactionAmount,Â
  SUM(TransactionAmount) over (partition by id ,CONVERT (DATE, @TodaysTransactionDate)) AS DailyTransactionAmount
 FROM ThresholdData
 WHERE id = @id
 AND transactiondate >= dateadd(d,-@TransactionDaysLimit,@TodaysTransactionDate)
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May 4, 2006
Hi,I need to create a partition table but the column on which I need tocreate a partition may not have any logical ranges. So while creatingor defining partition function I can not use any range.likeCREATE PARTITION FUNCTION my_part_func (NUMERIC(7)) AS RANGE LEFT FORVALUES (1,100,1000);Is there any way to define partition function in SQL Server somethinglike Oracle HASH partitions where logical range is unkown?ThanksSameer
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Dec 20, 2013
DECLARE @DatePartitionFunction nvarchar(max) = N'CREATE PARTITION FUNCTION DatePartitionFunction (datetime) AS RANGE RIGHT FOR VALUES (';
DECLARE @i datetime = '2007-09-01 00:00:00.000';
WHILE @i < '2008-10-01 00:00:00.000'
BEGIN
SET @DatePartitionFunction += '''' + CAST(@i as nvarchar(10)) + '''' + N', ';
[Code] ....
Msg 7705, Level 16, State 2, Line 1
Could not implicitly convert range values type specified at ordinal 1 to partition function parameter type.
However if I change to datetime2 it works
DECLARE @DatePartitionFunction nvarchar(max) = N'CREATE PARTITION FUNCTION DatePartitionFunction (datetime2) AS RANGE RIGHT FOR VALUES (';
DECLARE @i datetime2 = '2007-09-01 00:00:00.000';
WHILE @i < '2008-10-01 00:00:00.000'
BEGIN
SET @DatePartitionFunction += '''' + CAST(@i as nvarchar(10)) + '''' + N', ';
[Code] ...
Is the data type of the column used for partitioning. All data types are valid for use as partitioning columns, except text, ntext, image, xml, timestamp, varchar(max), nvarchar(max), varbinary(max), alias data types, or CLR user-defined data types.
In this case why isn't datetime works?
version is as follow:
Microsoft SQL Server 2012 (SP1) - 11.0.3128.0 (X64)
Dec 28 2012 20:23:12
Copyright (c) Microsoft Corporation
Enterprise Evaluation Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)
from [URL] .....
Table and index partitioning is supported in this edition
so I don't know why it fails!
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Apr 15, 2015
I have a heavy database , More than 100 GB only for six month .every Query on it takes me along time and I dont have enough space to add more indexes.by a way I decided to do partitioning. I create a partition function , on date filed and all Data records per month was appointed to a separate file.And is partitioning only for Future data entry?
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Jan 22, 2007
Could you tell what's wrong when I split table to the target partition table?USE TEST--ADD FILEGROUP---------------------------------------------------------------------ALTER DATABASE TEST ADD FILEGROUP FG_01ALTER DATABASE TEST ADD FILEGROUP FG_02ALTER DATABASE TEST ADD FILEGROUP FG_03--ADD FILE--------------------------------------------------------------------------ALTER DATABASE TEST ADD FILE (NAME = DF_01,FILENAME = 'D:TESTDF_01.ndf',SIZE = 10MB,MAXSIZE = UNLIMITED,FILEGROWTH = 10MB)TO FILEGROUP FG_01ALTER DATABASE TEST ADD FILE (NAME = DF_02,FILENAME = 'D:TESTDF_02.ndf',SIZE = 10MB,MAXSIZE = UNLIMITED,FILEGROWTH = 10MB)TO FILEGROUP FG_02ALTER DATABASE TEST ADD FILE (NAME = DF_03,FILENAME = 'D:TESTDF_03.ndf',SIZE = 10MB,MAXSIZE = UNLIMITED,FILEGROWTH = 10MB)TO FILEGROUP FG_03--CREATE PARTITION FUNCTION---------------------------------------------------------CREATE PARTITION FUNCTION PF_HIS_HTTP_LOG(datetime)AS RANGE LEFT FOR VALUES ('20070101 23:59:59.997','20070102 23:59:59.997')--CREATE PARTITION SCHEME-----------------------------------------------------------CREATE PARTITION SCHEME PS_HIS_HTTP_LOGAS PARTITION PF_HIS_HTTP_LOG TO ( FG_01, FG_02, [PRIMARY])--CREATE PARTITION TABLE -----------------------------------------------------------CREATE TABLE HIS_HTTP_LOG ( USERID varchar(32) , USERIP varchar(15) ,USERPORT numeric(5,0) , OBJECTIP varchar(15) , OBJECTPORT numeric(5,0) , URL varchar(256) , HOST varchar(64) , DN varchar(64) , VISITIME numeric(5,0) , STARTIME datetime , ENDTIME datetime ) ON PS_HIS_HTTP_LOG(STARTIME)--INSERT DATA,PARTITION 1 20070101-------------------------------------------------DECLARE @i intSET @i = 1WHILE @i <= 100BEGININSERT INTO HIS_HTTP_LOG VALUES(CAST(@i AS varchar(32)),'192.168.1.1',5,'202.103.1.57',6,'www.sohu.com',11,CONVERT" target="_blank">http://sina.com.cn','','www.sohu.com',11,CONVERT(datetime,'20070101 13:25:26.100',121),GETDATE())SET @i = @i +1END--INSERT DATA ,PARTITION 2 20070102-------------------------------------------------SET @i = 1WHILE @i <= 200BEGININSERT INTO HIS_HTTP_LOG VALUES(CAST(@i AS varchar(32)),'192.168.1.1',5,'202.103.1.57',6,'www.sohu.com',11,CONVERT" target="_blank">http://sina.com.cn','','www.sohu.com',11,CONVERT(datetime,'20070102 11:25:26.100',121),GETDATE())SET @i = @i +1END--CREATE A TABLE -------------------------------------------------------------------CREATE TABLE TMP_HTTP_LOG( USERID varchar(32) , USERIP varchar(15) ,USERPORT numeric(5,0) , OBJECTIP varchar(15) , OBJECTPORT numeric(5,0) , URL varchar(256) , HOST varchar(64) , DN varchar(64) , VISITIME numeric(5,0) , STARTIME datetime , ENDTIME datetime ) ON FG_03--INSERT DATA TO TMP_HTTP_LOG 20070103-----------------------------------------------DECLARE @i intSET @i = 1WHILE @i <= 400BEGININSERT INTO TMP_HTTP_LOG VALUES(CAST(@i AS varchar(32)),'192.168.1.1',5,'202.103.1.57', 6,'www.sohu.com',11,CONVERT" target="_blank">http://sina.com.cn','','www.sohu.com',11,CONVERT(datetime,'20070103 09:25:26.100',121),GETDATE())SET @i = @i +1END--ADD CONSTRAINT--------------------------------------------------------------------ALTER TABLE TMP_HTTP_LOGWITH CHECKADD CONSTRAINT CK001CHECK (STARTIME >= '20070103 00:00:00.000' AND STARTIME <= '20070103 23:59:59.997')--SPLIT RANGE ,SWITCH DATA----------------------------------------------------------ALTER PARTITION SCHEME PS_HIS_HTTP_LOG NEXT USED FG_03ALTER PARTITION FUNCTION PF_HIS_HTTP_LOG() SPLIT RANGE ('20070103 23:59:59.997')ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3--==========================================�======================================Why is the error in step of“ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3�error infomation:message_id 4972,level 16,severity 1ALTER TABLE SWITCH statement failed. Check constraints or partition function of source table 'TEST.dbo.TMP_HTTP_LOG' allows values that are not allowed by check constraints or partition function on target table 'TEST.dbo.HIS_HTTP_LOG'.Please tell me why ? check constraints ?Thank you very much !
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Aug 27, 2007
Hi everyone,
I use sql 2005. What is the best practice for dealing with large table (more than million rows)? Table Partition, View or other?
Can you please give some suggestions? It will be very helpful if you can post some references or examples.
Thank you!
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Apr 10, 2007
A customer wants to implement table partitioning on a replicated table.
They want to hold 13 months of data in the table and roll off the earliest/oldest month to an identical archive table. The table has a date field and partitioning by month makes sense all around.
So SWITCH PARTITION is the obvious solution to this, except for the fact that the table is replicated (transactional w/no subscriber updates).
What are his architectural or practical solutions to using table partitioning and replication?
thx
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Nov 22, 2005
Hi
Please help me how to do the Horizontal table partition??
I have to split the table in to multiple sub tables with same columns and less rows and then I have to use each sub table.
Thanks you in advance....
Regards
LakshmiPK
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Feb 27, 2008
All,
I have a partitioned table (1.7 billion rows) that is across 97 partions. The table is partitioned on datetime field.
When I query only this table with datetime field in where clause I see that cleary it outperforms the unpartitioned table.
When this table is joined to 3 tables it performs no better than
the non-partitioned table... it seems that the query does a partition scan.
The part. table has a 3 part composite clustered index and
a NC index on the partion field value.
Would appreciate any feedback.
thanks
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Dec 13, 2007
Hi Every body,
I am creating Table partition in tables but i am getting this error can you anybody plz help how can we do table partition in the database
CREATE TABLE PartitionTable (col1 int, col2 char(10))
ON myRangePS2 (col1) ;
GO
CREATE TABLE NonPartitionTable (col1 int, col2 char(10))
ON test2fg1 ;
GO
ALTER TABLE PartitionTable SWITCH PARTITION 2 TO NonPartitionTable ;
GO
Msg 1921, Level 16, State 1, Line 2
Invalid partition scheme 'myRangePS2' specified.
Msg 1921, Level 16, State 1, Line 1
Invalid filegroup 'test2fg1' specified.
Msg 4902, Level 16, State 1, Line 1
Cannot find the object "PartitionTable" because it does not exist or you do not have permissions.
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Jan 23, 2007
1 HIS_HTTP_LOG a partition table2 REL_HTTP_LOG not a partition table,the same structure of HIS_HTTP_LOGï¼›3 When HIS_HTTP_LOG doesn't exist any index the following executed succeed
ALTER PARTITION SCHEME PS_HIS_HTTP_LOG NEXT USED [FG_03] ALTER PARTITION FUNCTION PF_HIS_HTTP_LOG() SPLIT RANGE ('20070331 23:59:59.997') ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3
4 However when I added the index in HIS_HTTP_LOG and execute the step 3,It made error: a) CREATE INDEX IDX_HIS_HTTP_LOG_001 ON HIS_HTTP_LOG(USERID)ON PS_HIS_HTTP_LOG (STARTIME) b) ALTER PARTITION SCHEME PS_HIS_HTTP_LOG NEXT USED [FG_03] ALTER PARTITION FUNCTION PF_HIS_HTTP_LOG() SPLIT RANGE ('20070331 23:59:59.997') ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3
========================= Error messages================================================"ALTER TABLE SWITCH statement failed. There is no identical index in source table 'TMP_HTTP_LOG SWITCH ' for the index 'IDX_HIS_HTTP_LOG_001' in target table 'HIS_HTTP_LOG' ."
When I added index in REL_HTTP_LOG ,it gave me the same error message
Could you tell me how can I solve the problem !
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Feb 27, 2008
Can you join a partitioned table to other tables that either
are/are not partitioned??
When you join partitioned tables ... Do they have to be partition key 'aligned'??
thanks
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