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.
View 2 RepliesI 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.
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Partition an existing SQL Server Table
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we planning to create partitioning on existing tables. The partitioning is on date column, there should be one partition for each year.
Creating of new partitions should be automated, and also we dont have any plans of archiving old data, all we want is that new partition creation should be automated.
When you load the data into a new partition table, can it to done online without any downtime? because I have few tables that are around 250 gigs and more.
View 5 Replies View Related
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
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...
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
A common partitioning scenario is when the partition column has the same value for every record in the partition, as opposed to a range of values. Am I the only person who wonders why there isn't an option to automatically partition a table based on the unique values of the partition column? Instead of defining a partition function with constants, you ought to be able to just give it the column and be done. This would be particularly valuable for tables partitioned on a weekly or monthly date; when new data is added it could simply create a new partition if one doesn't already exist.
View 4 Replies View RelatedNormally 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?
Is it possible to partition an existing table on a foreign key (datetime) column? Also would partition switching work?
View 0 Replies View RelatedI 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
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
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
I have a scenario where I need to add a blank column to a table that is a publisher. This table contains over 100 million records. What is the best way to add the column? In the past where I had to make an update, it breaks replication because the update would take forever as jobs are continuously updating the table so replication can't catch up.
If I alter a table and add a column, would this column automatically get picked up in replication?
I have some huge tables (think 200+GB for a single table) which are excellent candidates for sparse columns. The tables have many columns which are defined with decimal datatypes (13,2) with a large percentage of them (over 50% in most cases- some as much as 99%) being 0.00. Since this is very expensive in terms of storage my idea is to set all the 0.00 values equal to NULL then set them as sparse. Across 100 or so identical databases, I have 5 such tables, with 20-40 columns in each table.
1.) three steps for each column in each table in each db.
Step 1: update table to allow for nulls
Step 2: update tabe set column=null where column =0.00
Step 3 update table set sparse columns
2.)
Step 1: Create entirely new table with sparse column definitions
Step 2: copy entire table, transforming 0.00 to null for affected columns via SSIS
Step 3: drop original table, rename new table to original name
I need to recover some data in a table but i'm not 100% sure the right way to do this safely.
I'll need to query the two tables to compare the before and after but how do i go about restoring/attaching the backup database to SQL without causing conflicts?
If I restore, I assume this would just overwrite which is obviously the worst thing that can happen. if i attach the backup, how does this affect the current live DB? how do i make sure that it's not getting accessed and mistaken for the live DB?
The SQL server is 2008 R2 running as a VM.
I would like to create a table valued function that fetch through the table below using a cursor and return the records that are unique
EmpidChDateSiteuseridinitsal finsalNote
-------------------------------------------- ----------
236102015-4-21 22:02:10.8072570 0.696176161 change inisal value
236112015-4-21 22:02:11.0502570 0.696176161change inisal value
236122015-4-21 22:02:11.1202570 0.696176161 change inisal value
236132015-4-21 22:02:11.2452570 0.696176161change inisal value
I'm trying to create a table using powershell..following is my syntax
$conn = New-Object System.Data.SqlClient.SqlConnection("Data Source=.sqlexpress; Initial Catalog=testdata1; Integrated Security=SSPI")
$conn.Open()
$db= $srv.Databases.Item("TestData1")
$tb = new-object Microsoft.SqlServer.Management.Smo.Table($db, "companytable")
$col1 = new-object Microsoft.SqlServer.Management.Smo.Column($tb,"CompanyName", [Microsoft.SqlServer.Management.Smo.DataType]::NChar(50))
[code]...
I have a simple table with 4 columns
(idAuxiliarPF(BIGINT+PK), pf(BIGINT+FK), Data(DateTime), Descr(NVARCHAR))that has aprox. 50k rows.
I need to create a partition of the data to join to another table, the query that i have:
SELECT
ROW_NUMBER() OVER (PARTITION BY pf ORDER BY Data DESC, idAuxiliarPF DESC) AS RN,
pf,
Data,
Descr
FROM dbo.PFAuxiliar
WHERE Data <= GETDATE()This query takes around 40 seconds to return the results
If i remove the Descr column, the query it takes no time.
SELECT
ROW_NUMBER() OVER (PARTITION BY pf ORDER BY Data DESC, idAuxiliarPF DESC) AS RN,
pf,
Data
FROM dbo.PFAuxiliar
WHERE Data <= GETDATE()I have two indexes, Clustered (idAuxiliarPF), NONClustered(pf).
How can i improve the performance of this query?
We have two databases with same schema and tables (same table names, basically main DB and a copy of the main DB). following is example of table names from 2 DBs.
CREATE TABLE #SourceDatabase (SourceColumn1 VARCHAR(50))
INSERT INTO #SourceDatabase VALUES('TABLE1') , ('TABLE2'),('TABLE3') , ('TABLE4'),('TABLE5') , ('TABLE6')
SELECT * FROM #SourceDatabase
DROP TABLE #SourceDatabase
CREATE TABLE #ArchiveDatabase (SourceColumn2 VARCHAR(50))
INSERT INTO #ArchiveDatabase VALUES('TABLE1') , ('TABLE2'),('TABLE3') , ('TABLE4'),('TABLE5') , ('TABLE6')
SELECT * FROM #ArchiveDatabase
DROP TABLE #ArchiveDatabase
We need a T_SQL statement that can create one view for each table from both the databases(assuming both databases have same number of tables and same table names). so that we can run the T_SQL on a thrid database and the third DB has all the views (one view for each table from the 2 DBs). and the name of the view should be same as the tables name. and all 3 DBs are on the same server.
the 2 temp tables are just examples, DBs have around 1700 tables each. so we ned something like following for each table.
CREATE VIEW DBO.TABLE1 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE1] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE1]
CREATE VIEW DBO.TABLE2 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE2] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE2]
CREATE VIEW DBO.TABLE3 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE3] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE3]
CREATE VIEW DBO.TABLE4 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE4] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE4]
CREATE VIEW DBO.TABLE5 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE5] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE5]
CREATE VIEW DBO.TABLE6 AS SELECT * FROM [SourceDatabase].[dbo].[TABLE6] UNION ALL SELECT * FROM [ArchiveDatabase].[dbo].[TABLE6]
I am running a script by the end of the day. What I need is the rows in my temp table get saved in a permanent table.
The name of the table should end with the current date at the end.
Declare @tab varchar(100)
set @tab = 'MPOG_Research..ACRC_427_' + CONVERT(CHAR(10), GETDATE(), 112 )
IF object_id(@tab ) IS NOT NULL
DROP TABLE '@tab';
Select * INTO @tab from #acrc427;
What is the syntax to verify that the partition data is loaded into the correct partition.
View 0 Replies View RelatedWhat is the syntax to verify Partition data load.
View 1 Replies View RelatedHi all, please help. I m trying to create an "empty" table from existing table for the audit trigger purpose.
For now, i am trying to create an empty audit table for every table in a database named "pubs", and it's seem won't work.
Please advise.. Thanks in advance.
Here is my code:
Code Snippet
USE pubs
DECLARE @TABLE_NAME sysname
DECLARE @AUDIT_TABLE VARCHAR(50)
SELECT @TABLE_NAME= MIN(TABLE_NAME) FROM INFORMATION_SCHEMA.TABLES
WHERE
TABLE_TYPE= 'BASE TABLE'
AND TABLE_NAME NOT LIKE 'audit%'
AND TABLE_NAME!= 'sysdiagrams'
AND TABLE_NAME!= 'Audit'
AND TABLE_NAME = 'sales'
WHILE @TABLE_NAME IS NOT NULL
BEGIN
SELECT @TABLE_NAME= MIN(TABLE_NAME) FROM INFORMATION_SCHEMA.Tables
WHERE TABLE_NAME> @TABLE_NAME
AND TABLE_NAME = 'sales'
SELECT @AUDIT_TABLE = 'Audit'+''@TABLE_NAME''
SELECT * INTO @AUDIT_TABLE
FROM @TABLE_NAME
TRUNCATE TABLE @AUDIT_TABLE
ALTER TABLE @AUDIT_TABLE ADD UserAction Char(10),AuditStartTime Char(50),AuditUser Char(50)
SELECT @TABLE_NAME= MIN(TABLE_NAME) FROM INFORMATION_SCHEMA.Tables
WHERE TABLE_NAME> @TABLE_NAME
AND TABLE_TYPE= 'BASE TABLE'
AND TABLE_NAME!= 'sysdiagrams'
AND TABLE_NAME!= 'Audit'
AND TABLE_NAME NOT LIKE 'audit%'
END
Thanks. ..
How to include a time difference column using 2 other date columns during creation of a table ?
The requirement is to create a table and include the following columns:
1.Downtime start date & time
2.Downtime end date & time
3.Downtime Duration in hh:mm (calculated date difference between column 1 and 2)
We have a massive database with an almost massive amount of traffic to and from it.
I've been requested to implement a sliding window partitioning with 2 partitions an active and passive 1,I managed to test this on a very small testbed last month.
I currently moved 97k table on to the partition function leaving me another 26 k to go
I'm using the following stored procedure to implement the sliding window
CREATE PROCEDURE [dbo].[ManageFactSlidingWindow](@pFunction nvarchar(max),@pSchema nvarchar(max),@FG nvarchar(max),@moveDays int)
/*****************************************************************************
PROCEDURE NAME: [ManageFactSlidingWindow]
AUTHOR: Arshad Ali
CREATED: 02/24/2013
DESCRIPTION: This stored procedure manages sliding window for the partitioned table
VERSION HISTORY:
DATE EMAIL Company DESCRIPTION
[Code] .....
When I try to move the partition even a single day I get loads of locks.
Hello,
I'd like to create a temporary table with the same schema as an exiting table. How can I do this without hard coding the column definitions into the temporary table definition?
I'd like to do something like:
CREATE TABLE #tempTable LIKE anotherTable
..instead of...
CREATE TABLE #tempTable (id INT PRIMARY KEY, created DATETIME NULL etc...
I'm sure there must be a simple way to do this!
Many thanks,
Ben S
How can I create a SQL authentication account with read-write access to only 1 table in a SQL database.
View 1 Replies View RelatedI have three tables :
England_Summer_2001
England_Summer_2002
England_Summer_2003
The tables have the following columns :
Player, Position, [From], [To], Fee, Type, ID, League, Window
I want to create a new table, EnglandFinal with all the data from the three tables although I'm guessing it would not be a good idea to copy the primary keys (ID column) as they would clash.
I have played around with CREATE and INSERT into and UNION but I get various errors. I'm sure I've done this before!
This creates a table from a single table :
select * into Final
from England_Summer_2001
How can I create a new table with a new name which is an exact copy of an existing table with:
1) All rows
2) no rows, only the structure of the table.
What is the easiset way to create TSQL Insert scripts for each record in a table. Can this be accomplished with one of the tools in SQL Server 2005?
Thanks in advance
The only way to add a new column to an existing mapping that I know is to go to advanced editor and refresh. This however keeps only the default mapping (where the field names match), the rest is wiped out, so need to restore the mapping manually after that. Risky and annoying at the same time. Is there any alternative?
View 3 Replies View RelatedHow 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.