Hi, I want to replace the indexes in my database to a different
filegroup. How can I do that using T-SQL? I only found a way that
uses the EM, but I have a lot of indexes and I hate to do it manually.
Thanks a lot.
Hi, I want to replace the indexes in my database to a different
filegroup. How can I do that using T-SQL? I only found a way that
uses the EM, but I have a lot of indexes and I hate to do it manually.
Thanks a lot.
Hello,
I have an PK Clustered index that I would like to move to another filegroup, which will inturn reside on another drive. Can someone point me to sql tsql or somewhere on bol that has the step by step on how to accomplish this? Thanks in advance.
John
We are using an application that stores it's data in SQL Server 2005. The application manages the creation of all it's own objects, including indexes. I would like to migrate the index data to a new filegroup, but there is no place in the application to specify how it builds it's indexes. I assume the indexes are created without specifying a filegroup so the default Primary is used. So, I'm wondering if there is a database option somewhere that you can set the default filegroup for index data?
If not, the only way I can think of accomplishing this goal is through DDL triggers to capture Create Index and Create Table statements and overwrite the Filegroup there.
Thanks in advance.
-Preston M. Price
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.
How do I improve a 3 column, composite clustered index on a large table when the developer insists there is no other way to achieve uniqueness? They say a uniqueindentifier column will not work.
View 5 Replies View RelatedI have data like below
Potter, James J
Williams, Ted R
Allen, Gary G
I want to remove Middle Name from the output
Potter, James
Williams, Ted
Allen, Gary
My Query:
SELECT
CASE WHEN CHARINDEX(' ', Supervisor, CHARINDEX(' ', Supervisor, 0) + 1) > 0 THEN
REPLACE(Supervisor, SUBSTRING(Supervisor, CHARINDEX(' ', Supervisor, CHARINDEX(' ', Supervisor, 0) + 1), LEN(Supervisor)), '')
ELSE Supervisor END AS NewSupervisor from data d
However, I stumble when Middle Name exists somewhere in the name as Replace function repalces every occurrence of the string. For ex: "Allen, Gary G" becomes "Allen,ary"
Do we have any way to say sql to replace after certain index?
please explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
I am using Full Text Index to index emails stored in BLOB column in a table. Index process parses stored emails, and, if there is one or more files attached to the email these documents get indexed too. In result when I'm querying the full text index for a word or phrase I am getting reference to the email containing the word of phrase if interest if the word was used in the email body OR if it was used in any document attached to the email.
How to distinguish in a Full Text query that the result came from an embedded document rather than from "main" document? Or if that's not possible how to disable indexing of embedded documents?
My goal is either to give a user an option if he or she wants to search emails (email bodies only) OR emails AND documents attached to them, or at least clearly indicate in the returned result the real source where the word or phrase has been found.
Dear All.
We had Teradata 4700 SMP. We have moved data from TD to MS_SQL SERVER 2003. records are 19.65 Millions.
table is >> Order_Dtl
Columns are:-
Client_ID varchar 10
Order_ID varchar 50
Order_Sub_ID decimal
.....
...
..
.
Pk is (ClientID+OrderId+OrderSubID)
Web Base application or PDA devices use to initiate the order from all over the country. The issue is this table is not Partioned but good HP with 30 GB RAM is installed. this is main table that receive 18,0000 hits or more. All brokers and users are using this table to see the status of their order.
The always search by OrderID, or ClientID or order_SubNo, or enter any two like (Client_ID+Order_Sub_ID) or any combination.
Query takes to much time when ever server receive more querys. some orther indexes are also created on the same table like (OrderDate, OrdCreate Date and Status)
My Question are:-
Q1. IF Person "A" query to DB on Client_ID, then what Index will use ? (If any one do Query on any two combination like Client_ID+Order_ID, So what index will be uesd.? How does MS-SQL SERVER deal with these kind of issues.?
Q2. If i create 3 more indexes on ClientID, ORderID and OrdersubID. will this improve the performance of query.if person "A" search record on orderNo so what index will be used. (Mind it their would be 3 seprate indexes for Each PK columns) and composite-Clustered index is also available.?
Q3. I want to check what indexes has been used? on what search?
Q4. How can i check what table was populated when, or last date of update (DML)?
My Limitation is i Dont Create a Partioned table. I dont have permission to do it.
In Teradata we had more than 4 tb record of CRM data with no issue. i am not new baby in db line but not expert in sql server 2003.
I am thank u to all who read or reply.
Arshad
Manager Database
Esoulconsultancy.com
(Teradata Master)
10g OCP
My SSIS package is running very slow taking so much time to execute, One task is taking 2hr for inserting 100k records, i have disabled unused index still it is taking time.I am rebuilding/Refreshing indexes and stats once in month if i try to execute on daily basis will it improve my SSIS Package performance?
View 2 Replies View RelatedKeep getting this error when positioning to the last page of a report.
Using Server 2003...SqlRpt Svcs 2000 sp2
Detail error msg:
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown. (rrRenderingError) Get Online Help
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown.
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Anyone have any suggestions? Any way to find out what collection is blowing?...or where parameter name: index comes from?
hello,
ihave atablelike this -
z uniqueidentifier
a varchar(40)
b varchar(40)
c varchar(40)
d varchar(40)
e varchar(40)
f text
g image
I am asked to split this table into 2 filegroups and move text and images on to one and other stuff on one.
I am new to MS-SQL 7.0.
Can anyone suggest me how to go for it.
Thanking you.
i understand that the filegroup for a table can be specified in the CREATE Table statement. just out of curiosity, is there any way to move a table to a different filegroup, that too, if the table contains data.
View 2 Replies View RelatedHi,
There is a table which is about 50GB is size.
I am thinking of placing the database of this table into a separate .ndf on a separate drive on the server.
Is it possible to place this particular table into a searate drive to increase the performance even more?
Basically my question is: is it possible to place tables into separate .ndf files?
Thanks
Hi,
I have created a database with two filegroups called FG_GroupData, FG_GroupHistory.
FG_GroupData is set as default.
FG_GroupData contains two secondary data files i.e. GroupData1.ndf and GroupData2.ndf
I can create a table so that it is stored in FG_GroupHistory. i.e.
CREATE TABLE dbo.OrdersHistory
(
OrderID int NOT NULL,
ProductID int NOT NULL,
CustomerID int NOT NULL,
UnitPrice money NOT NULL,
OrderQty smallint NOT NULL
)
ON FG_GroupHistory
Questions:
1)
How do I add tables to each .ndf file inside a group i.e. FG_GroupData
For example, how do I add a table to GroupData1.ndf and one to GroupData2.ndf ?
2)
I guess there is no need to place the file name i.e. .ndf inside the select query
Thanks
What is the advantage of having two secondary files inside a filegroup.
For example, I can create a table and place it inside a filegroup which obviously will use the secondary files.
Not sure why some DBAs create just one but otherscreate more than one secondar files in a filegroup.
I have read the booksonline but can not figure out the advantages.
Thanks
hello friends
i have table1 and 200 coulumn of table1 :) i have 647.600 records. i entered my records to table1 with for step to code lines in one day :)
i select category1 category2 and category3 with select code but i have just one index.. it is productnumber and it is primarykey..So my select code lines is so slow.. it is 7-9 second.. how can i select in 0.1 second ? Should i create index for category1 and category2 and category3 ? But i dont know create index.. My select code lines is below.. Could you learn me and show me index for it ?? or Could you learn me and show me fast Select code lines and index or etc ??? Also my search code line have a dangerous releated to attaching table1 with hackers :)
cheersi send 3 value of treview1 node and childnode and child.childnode to below page.aspx :)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
If Request("TextBox1") IsNot Nothing ThenTextBox1.Text = Request("TextBox1")
End If
If Request("TextBox2") IsNot Nothing ThenTextBox2.Text = Request("TextBox2")
End If
If Request("TextBox3") IsNot Nothing ThenTextBox3.Text = Request("TextBox3")
End If
End If
Dim searchword As String
If Request("TextBox3") = "" And Request("TextBox2") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "'"
End If
If Request("TextBox3") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "'"
End If
If Request("TextBox3") <> "" And Request("TextBox2") <> "" And Request("TextBox1") <> "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "' and kategori2= '" & Request("TextBox3") & "'"
End If
SqlDataSource1.SelectCommand = searchword
End Sub
Hi,
I'm running a merge replication on a sql2k machine to 6 sql2k subscribers.
Since a few day's only one of the merge agents fail's with the following error:
The merge process could not retrieve generation information at the 'Subscriber'.
The index entry for row ID was not found in index ID 3, of table 357576312, in database 'PBB006'.
All DBCC CHECKDB command's return 0 errors :confused:
I'm not sure if the table that's referred to in the message is on the distribution side or the subscribers side? A select * from sysobjects where id=357576312 gives different results on both sides . .
Any ideas as to what is causing this error?
Hi everyone,
When we create a clustered index firstly, and then is it advantageous to create another index which is nonclustered ??
In my opinion, yes it is. Because, since we use clustered index first, our rows are sorted and so while using nonclustered index on this data file, finding adress of the record on this sorted data is really easier than finding adress of the record on unsorted data, is not it ??
Thanks
Can anyone show me in SQL7 how to obtain Available Space on a particular filegroup in a database (not the database or datafile).
I am trying to include this in a script to monitor my database which uses Filegroups and I have every other info that I need (from the sysfiles table) except the available space. Thanks in advance!
hi...
I don't know well this statement...
1. from Transcender
.....
One file for each filegroup is sufficient because creating multiple files for the same filegroup on the same disk does not provide any performance gain
2. from bol
....
Therefore, creating more files per filegroup can help increase performance because a separate thread is used to scan each file in parallel
what is correct ?
thanks !!
Hi ,
I am restoring a VLDB from a Standby server which has just .mdf and .ldf to my production server which has .mdf and a file group with a single .ndf
file, i want to restore the databse on to the Secondary file(is this possible) i checked the BOl but could not figure out of what command is to be given
Any hhelp will be greatly appreciated..
Thanks in advance
Jane
Is it possible to back up one filegroup independently from the second when tables
in one group have foreign key relationships with tables in the second group?
I want to remove a filegroup.
ALTER DATABASE MyDBName
REMOVE FILEGROUP MyFileGroupName
It says:
Server: Msg 5042, Level 16, State 7, Line 1
The filegroup 'MyFileGroupName' cannot be removed because it is not empty.
Question: How can I tell what is on this filegroup.
<Forgive me if it is a simple BOL answer, but I'm having trouble finding it>
Hello,
A few days ago one our database's default filegroup filled up. To solve the problem one of my colleagues created a new filegroup. This didn't solve the problem as no objects were placed on this filegroup and the initial one is still full. The idea was to expand the original filegroup over a new physical disk, not to create a new filegroup on that disk. Unfortunately, this is what happened.
To solve this I want to delete the new filegroup, but when I issue the command 'alter database PvgOmcsOds remove filegroup ternary' I get the message 'Server: Msg 5042, Level 16, State 7, Line 1 The filegroup 'ternary' cannot be removed because it is not empty.' Yet there're no objects placed on this filegroup.
How can I get rid of this filegroup?
Stef
I am managing 120 gb SQL7 database. The 120 GB is in a RAID5 (Hardware RAID). At begining, I think I should create a user defined filegroup besides Primary filegroup, as BOL suggested.
After I read some discussions here, It appears I cannot gain any performance by adding second filegroups. Now I want to drop the filegroup I created. The Question is How?. If I do alter database, move all files from userdefined filegroup, does this mean my userdefined filegroup has gone?
Someone can help me on this!
Thanks a lot.
I have 2 test database identical in size and table structure, only one resides on filegroups and one resides on a single file.
From everything I have heard filegroups are suppose to improve performance. I stop and start the server before each test to clean out
cache. When I run the filegroup test initially the first run averages 20 seconds slower then the database sitting on the single file. However
on consective runs there is a significant improvement in performance with filegroups verses single files. I have
the indexes sitting on a separate filegroup and 2 additional filegroups to spread the tables across. Does any one know what would be causing
the performance to degrade on the initial run of the test. (The test by the way is a stored procedure that runs a select statement against each table).
Any Info Will help Thanks
Barb
Hi all,
I am trying to remove one of the filegroups in the development database to shrink its size down. I started with emptying and removing its files and ran:
dbcc shrinkfile
(pubs_data_1,emptyfile)
go
and it ran fine, with 'DBCC execution completed' message
but when I tried :
alter database pubs
remove file pubs_data_1
go
I got 'pubs_data_1 cannot be removed because it is not empty'.
I even tried to go to each of the tables and delete from them first which didn't work, then drop all tables in that filegroup (I knew which tables are located on that filegroup), that didn't work either.
Any ideas? Is there a way to check what else sits on that filegroup?
Thanks
We have sql 2000 server at a remote site that log ships to a standby server at the site, and back here to corporate. For performance we are adding a new RAID array to the remote servers along with a new file group for indexes. The server back here is older and we can't add this RAID. For log shipping purposes, what if anything might happen to this server when the filegroup is added. We are going to be using this filegroup for indexes
View 1 Replies View RelatedHi, I am running out of space on one of the local drive, and I would like to move a filegroup from one
drive to another. Does anyone know how to do it?
Are there any general recommendations concerning filegroups? My personal point of view is to place large tables in their own filegroups and group smaller, more static, tables in a single filegroup. Is it also good practice to group small and large index in two separate filegroups or should each large index have their own filegroup? Are there any useful links out there concerning filegroups and configuration?
View 1 Replies View RelatedHi,
Is there a way to rename a Filegroup "FG1" to "FG2"?
For those interested, I'm trying to script a sliding window procedure for my partitioned table and rather than use dynamic SQL I'd like to always refer to the same Filegroup name (ie. "FG1").
Many thanks,
Richard.