Find How Much Of Partition Filegroup Contains Data?
Oct 7, 2015
I have partitions that I have filled with data. I am not trying to figure out exactly how much data the partitions contain, and therefore I will be able to see if any of them are close to hitting their autogrow conditions. If I were looking at a single unpartitioned table, then I could maybe look at the table properties to determine data and index sizes, and compare that to the size of the mdf file size, but for partitions, then I am not sure how I would query this information out. Any pointers on how this information could be queried out of the system?
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?
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?
I work for a 24/7 shop. We currently have a table that is partition on monthly. I have to created a script that will add a new file group, add the new file to the group, and alter the the partition scheme and function. However, I need for this process to not cause a lock on the table. Typically I get the locking and issues when I am run the split command. Is there a way to prevent this from happening?
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?
How do i find Total allocated space and used space of a memory optimized filegroup?
use memory_optimized_db Go select (SUM(size)*8.0)/1024.0 as Space, FILEGROUP_NAME ( data_space_id ) , type_desc from sys.database_files group by data_space_id,type_desc;
above query gives "current used size of the container " of memory optimized file group but doesn't give Total space detail.
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
Recently i've been working on a new project that would partition a large table 2 smaller tables. I then create a view to union the 2 smaller tables(table A, B). I've been getting a strange error when i try to update, insert, delete a record through the view. "View needs partitioning column"....i find this strange. Both of my table have a cluster primary key consisting of 3 columns, and one of the 3 columns(date field) consist of a check constraint. The constraint is used to determine what record goes into which table. Am i missing anything else? The really strange part is sometime it works, and sometimes i get the error message.
Please see below sample from BOL + sample of execution plane .
I would like to ask what is the way to avoid the optimizer scan tables out of the scope (I would expect that the only table for this query will be SUPPLY1)
Thanks, Eyal
--This example uses tables named SUPPLY1, SUPPLY2, SUPPLY3, and SUPPLY4, which correspond to the supplier tables from four offices, located in different countries/regions. USE tempdb GO
--create the tables and insert the values CREATE TABLE SUPPLY1 ( supplyID INT PRIMARY KEY CHECK (supplyID BETWEEN 1 and 150), supplier CHAR(50) ) CREATE TABLE SUPPLY2 ( supplyID INT PRIMARY KEY CHECK (supplyID BETWEEN 151 and 300), supplier CHAR(50) ) CREATE TABLE SUPPLY3 ( supplyID INT PRIMARY KEY CHECK (supplyID BETWEEN 301 and 450), supplier CHAR(50) ) CREATE TABLE SUPPLY4 ( supplyID INT PRIMARY KEY CHECK (supplyID BETWEEN 451 and 600), supplier CHAR(50) ) GO --create the view that combines all supplier tables CREATE VIEW all_supplier_view AS SELECT * FROM SUPPLY1 UNION ALL SELECT * FROM SUPPLY2 UNION ALL SELECT * FROM SUPPLY3 UNION ALL SELECT * FROM SUPPLY4 GO
I've found this problem working with a VLDB, six month ago when I install the DBMS (Win2k3 x64+sp2, SQL 2k5 x64 +sp2, 4 dual core processor and 12 GbRAM) I've got 10 disk (actually ten LUN from a Storage Area Network), each 50Gb. I've put TempDB and Transaction Log on two separate 50 Gb disk and put the database on 8 different data file on the 8 disk; I've created each datafile with a size of 50 Gb (autogrowth disable), so my DB has 400Gb space in it's datafile. After a while the datafile began to fill and we decide to add a couple more 50Gb disk where I decide to put to new datafile; now my db is around 430 Gb and I've got this strange situation:
The first 8 datafile now are almost full of data, and obviously they can't growth since they already occupy the whole disk.
The two additional datafile are relatively empty (about 15 Gb each).
As far as I understand now each time that SQL should write to the databse it writes only on the 2 new datafile, and I fear that this can affect performance. I'd like to reorganize the space in order to have 10 datafile, each with 43Gb of data, but I didn't find any instruction/tool able to move data between datafile.
OK, I know this is out there all over and yes I did a search for this topic; however, I am confused about tables with an image data type and with moving text file group to another filegroup.
Here is what I have:
I have a table storing imaged documents and has become very large. I want to move the table to another filegroup. The table is created like this:
USE [PD51_Data] GO /****** Object: Table [dbo].[SCANNEDDOCUMENTS] Script Date: 05/13/2008 14:52:40 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[SCANNEDDOCUMENTS]( [DocID] [int] IDENTITY(1,1) NOT NULL, [CaseID] [int] NOT NULL, [DocName] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL, [Doc] [image] NOT NULL, [DocLocation] [varchar](255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL, [DocNotes] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NULL, [TopicID] [int] NULL, [ScannedDocumentsCheckSum] [varchar](128) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,PRIMARY KEY CLUSTERED ( [DocID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO SET ANSI_PADDING OFF GO ALTER TABLE [dbo].[SCANNEDDOCUMENTS] WITH NOCHECK ADD CONSTRAINT [ISCANNEDDOCUMENTS2] FOREIGN KEY([TopicID]) REFERENCES [dbo].[TOPICS] ([TopicID]) GO ALTER TABLE [dbo].[SCANNEDDOCUMENTS] CHECK CONSTRAINT [ISCANNEDDOCUMENTS2]
On a test DB, I moved the clustered and nonclustered indexes to a secondary filegroup no problem, but it still shows to be stored in the primary filegroup. I read an article about having to create a new table in the secondary in order to move the images and text file group. Has anyone come across this?
Do I need to drop the clustered index and FK to move to a secondary filegroup?
Or
Do I create a new table into the secondary filegroup and then add the Clustered index and constraints?
I am getting below error while importing data in SQL 2005 Express:
"error 0xc0202009: Data Flow Task: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Could not allocate space for object 'dbo.HistoryLog'.'PK_HistoryLog' in database 'HistoryData' because the 'PRIMARY' filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup.". "
I made the max size of each file 600,000 MB and added a third file 3dat also 600,000 MB. I rebuilt all the clustered indexes (and nonclustered for good measure) and unfortunately the re-balancing wasn't quite right.
I only have a handful of heap tables that take up <100MB total so they're not the issue. I did do an ONLINE index rebuild. I'm not sure if an offline rebuild would have been better. I will not be able to try and offline for a few weeks though as it's time consuming and I have other tasks I need to run on this test server now.
I did a FULLSCAN rebuild on any column statistics not updated by the index rebuild but that didn't help either.
I have a sql server 7 running on a machine with two disk partitions (D: and E:).
The data files xxx.mdf and xxx.ldf are stored in D:, which has very few space available. I want to copy these files to E: but I get an error saying that it is not possible to change the source file of a database. Is it possible to do it or do i have to create another data file in E: and keep the old one in D:?
I am trying to understand, when would I do a vertical partition in a Dimensional Data Warehouse ? What are the things I need to consider, before I take the decision?
Hi Column with TEXT datatype is not stored in the same data row any way. I am wondering if there is any performance gain to put it in a seperate table. Thanks
Does anyone have a helpful link for using the partition processing data flow task in SSIS? I am trying to process a monthly partition from within my package and am getting the following error:
Error: 0xC113000A Errors in the high-level relational engine. Pipeline processing can only reference a single table in the data source view.
If anyone has used this before and could point me in the right direction, I would appreciate it.
I've got a partitioned table where I am trying to switch the first partition into a staging table, merge the first boundary and later drop the file and the file group.
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.
I’m looking for clearity on partition switching. The idea is to use many BULK INSERT statements into table dbo.X_n in parallel and when BULK INSERT for table dbo.X_n is completed, switch dbo.X_n into dbo.bigdaddy. I think this is the fastest way to upload a couple hundred GB of data.
In learning about partition switching (in part) from The Data Loading Performance Guide under Partition SWITCH, I hear the instructions to say copy the main table exactly to become a target. But in that same step (#1), I read that we need to change the default file group of the target (dbo.X_n) from the default file group. Then it says I need to match indexes and lists the filegroup as something we need to match with the main table.
As an overview of the partition switching strategy, I think the whole point of BULK INSERT with partitioning is to have seperate files (in same group) to enable concurrent uploading where each table has its own file. Once the upload is completed to a table (dbo.X_n) then we do the partition switch into the main table (dbo.bigdaddy). The data we just uploaded doesn’t actually move, just the metadata for it.
When I read the instructions linked above, I hear “Don’t have the same filegroup on your target as the main table. You must have the same filegroup on your target as the main table.”
I need to modify a table to reside on a new filegroup and also point TEXTIMAGE_ON to that filegroup instead of PRIMARY. Apparently in the past, the only way to achieve this via SQL is to create a new table, copy over data, drop the old table and rename the new table to the original name. I found this solution in the SQL Server 2005 forum.
Is there any other way to alter this table in order to point the TEXTIMAGE_ON to new filegroup using SQL Server 2014? We are on Standard edition. The technique I am using is the drop constraint (with move option) and add constraint (to new filegroup) commands. The data and indexes move, but not the text data (it still is in primary filegroup).
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?
I’m looking for clearity on partition switching. The idea is to use many BULK INSERT statements into table dbo.X_n in parallel and when BULK INSERT for table dbo.X_n is completed, switch dbo.X_n into dbo.bigdaddy. I think this is the fastest way to upload a couple hundred GB of data.
In learning about partition switching (in part) from The Data Loading Performance Guide under Partition SWITCH, I hear the instructions to say copy the main table exactly to become a target. But in that same step (#1), I read that we need to change the default file group of the target (dbo.X_n) from the default file group. Then it says I need to match indexes and lists the filegroup as something we need to match with the main table.
As an overview of the partition switching strategy, I think the whole point of BULK INSERT with partitioning is to have seperate files (in same group) to enable concurrent uploading where each table has its own file. Once the upload is completed to a table (dbo.X_n) then we do the partition switch into the main table (dbo.bigdaddy). The data we just uploaded doesn’t actually move, just the metadata for it.
“Don’t have the same filegroup on your target as the main table. You must have the same filegroup on your target as the main table.”
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.
We are running SQL Server 2014 Enterprise Edition (64-Bit) on Windows 2012 R2 Standard (64-Bit).
1. When to create indexes, before or after data is added? Please address Clustered and Non-Clustered Indexes.
2. To move indexes to it's own filegroup, is it best to create the NON-Clustered Indexes on the separate filegroup with code similar to the example below?
CREATE NONCLUSTERED INDEX IX_Employee_OrganizationLevel_OrganizationNode ON HumanResources.Employee (OrganizationLevel, OrganizationNode) WITH (DROP_EXISTING = ON) ON TransactionsFG1; GO
I have read the following links that states that if you create the Clustered Index on a separate filegroup, it would also move the base table to that particular filegroup. (So I take it that you ONLY can move NON-CLustered Indexes to a separate filegroup.)
Placing Indexes on Filegroups:
[URL]
By default, indexes are stored in the same filegroup as the base table on which the index is created. A nonpartitioned clustered index and the base table always reside in the same filegroup. However, you can do the following:
• Create nonclustered indexes on a filegroup other than the filegroup of the base table.
Move an Existing Index to a Different Filegroup:
[URL]
Limitations and Restrictions
• If a table has a clustered index, moving the clustered index to a new filegroup moves the table to that filegroup.
• You cannot move indexes created using a UNIQUE or PRIMARY KEY constraint using Management Studio. To move these indexes use the CREATE INDEX statement with the (DROP_EXISTING=ON) option in Transact-SQL.
I have been creating databases in SQL 2008 with a primary filegroup for the system objects and a secondary, marked Default, for the data.
We are preparing a migration to SQL 2014, and the administrator is complaining he won't adopt this structure on the new servers because 'there is no benefit' and 'a backup cannot be restored (!?)'.
I read , When sql server Database having multiple data files within single filegroup then sql server writes data in multiple proportional file algorithm where the amount of data written to a file is proportionate to the amount of free space in that file, compared to other files in the filegroup.
so if there is no filegroups created and multiple secondary files are attached in databse , is there same way data stored and writes data in multiple files by the same algorithm or any different way.
It looks like these options are only available in the SQL Server Management Studio? I installed SQL Server Management Express Studio and I can't even find the DTSWizard.exe on my machine.
Can you please help how I can import data from excel or where can I download the SQL Server Management Studio?
