Taking a course on SQL. They are saying you can get better performance by
having multiple files for a group.
They then graphically show an example of "Primary" with multiple data files.
I have tried altering PRIMARY to have multiple data files and I get and
error. I have tried creating a new database with multiple PRIMARY files and
get an error.
I can ALTER and CREATE secondary files with multiple data files with no
problem.
Am I mixing apples with oranges, does their "Primary" mean something
different then "PRIMARY"?
Looking at help it seems that you can only have one PRIMARY data file and I
am thinking their use of "Primary" means the primary group where you will
have your tables, not the PRIMARY group. Just don't want to lock onto the
wrong concept.
I have two database file, .mdf and .ndf files but when i check in the database property settings file group shows as primary but the extension of the file is .ndf.
My intension is to have two filegroups. but why it is not showing as secondary , for both the files it is showing primary only.
Hi, Can anyone tell me a solution how to combine 3 primary files that are existing in a particular database into one. One of the database that was running has three primary(.mdf) files. Can any one tell me whether the files created in that way has impact on the performance of the server.Solution for this problem is highly appreciated. Thanks in advance. VS.
Hi all..!If I want to split an SQL DB into several physical files (as its 500GBdisk ran out of space, won't even run shrinks any more, and we boughtanother 500GB disk to add to the PC)then what is the difference between:Adding another File to the primary group which will reside on the newgroup;Adding another file in another group.We do not want to set any db objects (Tables, indexes)to a secondary file, as this will involve lengthy data movingoperations. We would like the DB to continue working from where it isutilizing the added space in a contigous (striped) manner.Will striping occur in both cases? as I understand striping it meansthat our stuck SQL Server will awake back to life as it will now have500GB more data for its DB, even though we haven't set any of itsobjects (tables, indexes) to explicitly use the secondary NDF file onthe new disk?or will it only utilize the new space if we set some objects to resideon that NDF?for example if we run large queries which crash now (due to lack ofspace) when we add the second drive will they start to work as theprocess will grow striped from the full drive to the new drive, even ifall the queries' source tables are all still set to the old drive?Thanks for any replies?
I've just applied CU7 to a set of SQL2005 SP2 servers with no problems, except on one server. I've now fixed the problem, but couldn't find description of it elsewhere so post it here in case it helps anyone else with the same problem.
Here's the problem I had. The server is Windows 2003 with two instances of SQL 2005 SP2 (9.00.3186) 1) Ran the patch (SQLServer2005-KB949095-x86-ENU.exe) 2) C: drive ran out of space whilst patch was running against instance A 3) Cleared down space on C: drive 4) Patch had hung, after 45 minutes of no activity I killed it 5) Re-ran patch, it reported instance A as upgraded already and just upgraded instance B 6) After reboot instance A failed to start. Instance B started with no problem.
The service was failing to start with the following recorded in the log: Server Microsoft SQL Server 2005 - 9.00.3239.00 (Intel X86) [€¦] spid5s The resource database build version is 9.00.3186. This is an informational message only. No user action is required. spid5s Error: 5173, Severity: 16, State: 1. spid5s One or more files do not match the primary file of the database. If you are attempting to attach a database, retry the operation with the correct files. If this is an existing database, the file may be corrupted and should be restored from a backup. spid5s Error: 5173, Severity: 16, State: 1. spid5s One or more files do not match the primary file of the database. If you are attempting to attach a database, retry the operation with the correct files. If this is an existing database, the file may be corrupted and should be restored from a backup. spid5s Log file 'C:Program FilesMicrosoft SQL ServerMSSQL.2MSSQLDATAmssqlsystemresource.ldf' does not match the primary file. It may be from a different database or the log may have been rebuilt previously. spid5s The log cannot be rebuilt when the primary file is read-only. spid5s Error: 945, Severity: 14, State: 2. spid5s Database 'mssqlsystemresource' cannot be opened due to inaccessible files or insufficient memory or disk space. See the SQL Server errorlog for details.
I think that the patch must have got part-way through instance A, enough to mark it as being patched, but not far enough to patch the mssqlsystemresource system database (note the version numbers in the log above - 9.00.3239 vs 9.00.3186). The hotfix log records an error opening the registry, but the detailed log was overwritten by the subsequent (successful) run of the hotfix so there€™s no more detail available.
To fix this I copied in the mssqlsystemresource mdf and ldf files from instance B (which wasn€™t patched the first time round, and was subsequently patched successfully). From what I understand mssqlsystemresource is read-only and holds copies of system sprocs etc, so a copy will suffice. Plus I am assuming the SQL Server is clever enough to complain if it€™s not happy with the instance of the file.
Note that the problem recorded elsewhere for this error, where mssqlsystemresource or other system DBs have been moved from their original installation folders, was not the cause here. Not sure if this is the 'correct' fix, but it got Instance A up and running. Obviously YMMV
A little background on what I am trying to achieve first. We are moving to Azure virtual machines and we will have 8 disks on the SQL Server box. I am adding more files to the primary file group and each file will go on its own drive. I am then rebalancing data across these files by rebuilding all of the indexes on the tables which is working fine. No problems so far all is good.
I now have an additional problem. If there is a lob or blob column on the table, rebuilding the clustered index and all the non clustered indexes doesn't rebalance the blob or lob data across the disks such as it does with in row data.
I cannot find any articles on rebalancing lob or blob data because all the articles say to move to a new file group. I do not want a new file group, I just want to use the primary file group where the data already resides, and just redistribute it evenly in the same way that I can in row data which is working fine.
One solution I thought about was to BCP data out of the table, truncate the table and then BCP back into the table which I imagine would have the desired effect of distributing the data evenly over the files.
I downloaded and ran AdventureWorks.msi into my SQL Server Management Studio Express (SSMSE) one year ago.But I did not know how to attach it to my SSMSE then. Last week, I deleted it from the "Add or Remove" of Control Panel and I downloaded the new AdventureWork.msi and installed it my SSMSE. Today, I tried to use the Database Explorer of VB 2005 Express for the first Stored Procedure programming. I clicked on AdventureWorks.mdf and I got the following error: One or more files do not match the primary of the database. If you are attempting to attach a database, retry the operation with the correct files. If this is an existing database, the file may be corrupt and should be restored from a backup. Cannot open user default database. Login failed. Login failed for user 'CENADe1enxshc'. Log file 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataAdventureWorks_Data_log.ldf' does not match the primary file. It may be from a different database of the log may have been rebuilt previously. Please help and advise me how to correct this problem.
Why shrinkfile empty file does not redistribute data evenly in the primary file group with multiple files:
Please run the script attached to see what the end result is.
This is what I set up last night on my test machine.
1) Create database [FGTest] size 200MB 2) Create table called TEST on primary 3) Insert 40MB of data into test 4) Create another file group called temp in primary size 200MB 5) Shrinkfile('FGTest',emptyfile) so that all data is transfered from FGTest into temp file group. 6) Add another 2 files called DATA2 and DATA3. Both are 200MB. 7) We now have 3 empty files that I want data distributed evenly on. FGTest, DATA2 & DATA3 8) Shrinkfile('temp',emptyfile) to move all the data from temp over the 3 file groups evenly
I would expect at this stage to have the following:
FGTest = 13MB, DATA2 = 13MB, DATA3 = 13MB
(40MB of data over 3 files should be about 13 MBish in each file)
What I actually end up with is this:
FGTest = 20MB DATA1 = 10MB DATA2 = 10MB
It looks as though SQL Server is allocating 50% of all data to the original file and then 50% evenly over the remaining files in PRIMARY.
Uma writes "Hi Dear, I have A Table , Which Primary key consists of 6 columns. total Number of Columns in the table are 16. Now i Want to Convert my Composite Primary key into simple primary key.there are already 2200 records in the table and no referential integrity (foriegn key ) exist.
may i convert Composite Primary key into simple primary key in thr table like this.
I have recently been looking at a database and wondered if anyone can tell me what the advantages are supporting a unique collumn, which can essentially be seen as the primary key, with an identity seed integer primary key.
For example:
id [unique integer auto incremented primary key - not null], ClientCode [unique index varchar - not null], name [varchar null], surname [varchar null]
isn't it just better to use ClientCode as the primary key straight of because when one references the above table, it can be done easier with the ClientCode since you dont have to do a lookup on the ClientCode everytime.
We have a table, which has one clustered index and one non clustered index(primary key). I want to drop the existing clustered index and make the primary key as clustered. Is there any easy way to do that. Will Drop_Existing support on this matter?
I proposed on a new server that we separate Data Files, Log Files, tempDB, Backups, etc. onto separate LUNS on a SAN with High Speed Solid State Drives.I was told that with the new technology with solid state SAN's that it would decrease performance and that it did not work the same way as it did when you had RAID 5's etc.I thought that if things were cared out correctly by a SAN Administrator they would know how to configure for optimal performance.
In the For Loop, How to Iterate from Older flat files to Newer flat files based on File's Timestamp. If there are some older files in that folder, it should be processed first and then continue with the newer one.
In the first step of my SSIS package I need to get files from FTP and dump it/them in a local directory, but it's more than that, the logic is like this: 1. If no file(s) found, stop executing and send email saying no file(s) found; 2. If file(s) found, then compare it/them with existing files in our archive folder; if file(s) already exist in archive folder, stop executing and send email saying file(s) already existed, if file(s) not in archive folder yet, then transfer it/them to the local directory for processing.
I know i have to use a script task to do this and i did some research and found examples for each of the above 2 steps and not both combined, so that's why I need some help here to get the logic incorporated right.
Thanks for the help in advance and i apologize for the long lines of code!
example for step 1: ----------------------------------------------------------------------------------------------------------
' Microsoft SQL Server Integration Services Script Task ' Write scripts using Microsoft Visual Basic ' The ScriptMain class is the entry point of the Script Task.
' The execution engine calls this method when the task executes. ' To access the object model, use the Dts object. Connections, variables, events, ' and logging features are available as static members of the Dts class. ' Before returning from this method, set the value of Dts.TaskResult to indicate success or failure. ' ' To open Code and Text Editor Help, press F1. ' To open Object Browser, press Ctrl+Alt+J.
Public Sub Main()
Dim cDataFileName As String Dim cFileType As String Dim cFileFlgVar As String WriteVariable("SCFileFlg", False) WriteVariable("OOFileFlg", False) WriteVariable("INFileFlg", False) WriteVariable("IAFileFlg", False) WriteVariable("RCFileFlg", False) cDataFileName = ReadVariable("DataFileName").ToString cFileType = Left(Right(cDataFileName, 4), 2) cFileFlgVar = cFileType.ToUpper + "FileFlg" WriteVariable(cFileFlgVar, True) Dts.TaskResult = Dts.Results.Success End Sub Private Sub WriteVariable(ByVal varName As String, ByVal varValue As Object) Try Dim vars As Variables Dts.VariableDispenser.LockForWrite(varName) Dts.VariableDispenser.GetVariables(vars) Try vars(varName).Value = varValue Catch ex As Exception Throw ex Finally vars.Unlock() End Try Catch ex As Exception Throw ex End Try End Sub Private Function ReadVariable(ByVal varName As String) As Object Dim result As Object Try Dim vars As Variables Dts.VariableDispenser.LockForRead(varName) Dts.VariableDispenser.GetVariables(vars) Try result = vars(varName).Value Catch ex As Exception Throw ex Finally vars.Unlock() End Try Catch ex As Exception Throw ex End Try Return result End Function End Class
example for step 2: -------------------------------------------------------------------------------------------------------
' Microsoft SQL Server Integration Services Script Task
' Write scripts using Microsoft Visual Basic
' The ScriptMain class is the entry point of the Script Task.
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Runtime
Public Class ScriptMain
' The execution engine calls this method when the task executes.
' To access the object model, use the Dts object. Connections, variables, events,
' and logging features are available as static members of the Dts class.
' Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
'
' To open Code and Text Editor Help, press F1.
' To open Object Browser, press Ctrl+Alt+J.
Public Sub Main()
Try
'Create the connection to the ftp server
Dim cm As ConnectionManager = Dts.Connections.Add("FTP")
It works remotely if I run it via command prompt. But when I add this to a TSQL job on my remote SQL instance, it runs without deleting anything. What I'm missing?
CREATE TABLE [dbo].[property_instance] ( [property_instance_id] [int] IDENTITY (1, 1) NOT NULL , [application_id] [int] NOT NULL , [owner_id] [nvarchar] (100) NOT NULL , [property_id] [int] NOT NULL , [owner_type_id] [int] NOT NULL , [property_value] [ntext] NOT NULL , [date_created] [datetime] NOT NULL , [date_modified] [datetime] NULL )
I have created an 'artificial' primary key, property_instance_id. The 'true' primary key is application_id, owner_id, property_id and owner_type_id
In this specific instance - property_instance_id will never be a foreign key into another table - queries will generally use application_id, owner_id, property_id and owner_type_id in the WHERE clause when searching for a particular row - Once inserted, none of the application_id, owner_id, property_id or owner_type_id columns will ever be modified
I generally like to create artificial primary keys whenever the primary key would otherwise consist of more than 2 columns.
What do people think the advantages and disadvantages of each technique are? Do you recommend I go with the existing model, or should I remove the artificial primary key column and just go with a 4 column primary key for this table?
Brief overview...Running SQL Server 2003 Server Enterprise 64 bit - All Service Packs and patches current SQL Server 2005 Enterprise Edition 64 bit Build Microsoft SQL Server 2005 - 9.00.3054.00 (X64) Mar 23 2007 18:41:50 Copyright (c) 1988-2005 Microsoft Corporation Enterprise Edition (64-bit) on Windows NT 5.2 (Build 3790: Service Pack 2)
I cannot import any SSIS packages nor crete any new folders under stored packages. I hve googled the news groups and looked at BOL to no avail. HELP!!!!
I am thinking about replacing the INSERT data scriptfiles that I have with XML files. This way I can open the XMLfile using an XML Editor and see the values in a GRID andmake changes easier.Do you see any problem with this approach?I managed to put together some code that is exportinga SQL table with its data to an XML file and also a codethat reads the XML file's data and inserts it into a table.Now I am researching on XSD, td:datatype, DTD...(I am new to XML) in order to figure out how I canuse a single xml file that will hold both the sql serverfields, the datatypes and their values.If you have links to some sample code that has anythingto do with the datatype export and import I am workingon, can you please share them with me?Most importantly what do you think about the idea of usingXML files vs sql scripts?Thank you
I am wanting to reduce the amount of Virtual Log Files I have. In reading through the Online Book Documentation, I realize that I have forgotten to move the Transaction Log Files to a different drive. Now that the server is in production, I wanted to get some input about the best way of making this change.
Can I just change the directory the log files are being written to in the DB properties without having any adverse problems occurring?
Hi! I'm using replication with two database on SQL 2000,when begin, the log files size is 50mb and the data files size is 150mb. But now the log files size is 2Gb and the data files size is 4Gb. I would like to decrease the log files and the data files ??? How do i do this??? (I using Truncate and shrink doesn't change ) Thanks!!!
I need to write codes to access many image files and wave files and display them on the webpage. Both of these files are stored on the server (as many experts in this forum adviced) and their locations are in the SQL server database. About the wav files, I think I will have to convert them to MP3 first for fast delivery on internet. Since I am a newbie, any help would be appreciated. Thanks,
I have a problem with bcp and format files.We changed our databases from varchar to nvarchar to support unicode. Noproblems so fare with that. It is working fine.But now I need a format file for the customer table and and it is notworking. It is working fine with the old DB with varchar, but withnvarchar I'm not able to copy the data. The biggest problem is, that Igot no error message. BCP starts copying to table and finished withouterror message.This is my table:CREATE TABLE [dbo].[Customer] ([ID] [int] NOT NULL ,[CreationTime] [datetime] NULL ,[ModificationTime] [datetime] NULL ,[DiscoveryTime] [datetime] NULL ,[Name_] [nvarchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AI NULL ,[Class] [int] NULL ,[Subclass] [int] NULL ,[Capabilities] [int] NULL ,[SnapshotID] [int] NOT NULL ,[CompanyName] [nvarchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AI NOTNULL ,[TargetRCCountry] [nvarchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AINOT NULL ,[LocationID] [int] NULL ,[MirrorID] [binary] (16) NULL ,[DeleteFlag] [bit] NULL ,[AdminStatus] [bit] NULL) ON [PRIMARY]GOand this is the format file:8.0131 SQLINT 1 12 "#~@~#" 1 ID ""2 SQLDATETIME 1 24 "#~@~#" 2 CreationTime ""3 SQLDATETIME 1 24 "#~@~#" 3 ModificationTime ""4 SQLDATETIME 1 24 "#~@~#" 4 DiscoveryTime ""5 SQLNCHAR 2 510 "#~@~#" 5 Name_SQL_Latin1_General_CP1_CI_AS6 SQLINT 1 12 "#~@~#" 6 Class ""7 SQLINT 1 12 "#~@~#" 7 Subclass ""8 SQLINT 1 12 "#~@~#" 8 Capabilities ""9 SQLINT 1 12 "#~@~#" 9 SnapshotID ""10 SQLNCHAR 2 510 "#~@~#" 10 CompanyNameSQL_Latin1_General_CP1_CI_AS11 SQLNCHAR 2 510 "#~@~#" 11 TargetRCCountrySQL_Latin1_General_CP1_CI_AS12 SQLINT 1 12 "#~@~#" 12 LocationID ""13 SQLBINARY 1 33 "#~@~#
"13 MirrorID """#~@~#" is the field terminator. We have a lot of text files with allkind of charachers in it. So we think this is a set that will neveroccur in our files.Thanks for your help!*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
Are there any MDS Descriptor Files associated with Databases Files? Are these associated with transaction logs? As per my information there are .mdf , .ndf and .ldf files.Could anyone please guide me ASAP,as there is an urgent requirement from one of the clients?
I've created a linked server (and set up the corresponding schema.ini file) in order to perform bulk-inserts from some CSV text files into SQL tables (from my standpoint the text files are just for reading purposes). The linked server works fine (I can select the data in the files without a problem).
Now the question: is possible to automatically detect when one or more of those files change in order to start the import process automatically? Something like having a trigger created on the CSV files Or there's no easy way to do that so I have, to say something, to create a Job that periodically checks if the files have changed programatically (say, recording each file's timestamp everytime is imported and comparing the recorded value with the current one, or whatever)?
I might have a rather strange question but I was wondering if there is a way/tool that can be used to convert/import Word documents (.doc) into Reporting Services report files (.rdl). The problem is that I have lots of Word documents containing e.g. survey question. The reports are very extensive with many pages and many "graphical" objects e.g. rectangles etc.. Now I want to have all these reports imported into Reporting Services, i.e. I want the .doc-files to be converted to .rdl-files. I do not want to use e.g. OfficeWriter but I want the .doc-files to be migrated to the rdl-format. Is that possible, is there a tool for this? Both file formats are Microsoft formats, so there should be a conversation tool right?
Hello all,I'm taking over a project from another developer and i've run into a bit of a problem. This developer had a bad habit of not using primary keys when designing various databases used by his programs. So now i've got approx 1000 tables all of which do not have primary keys assigned. Does anyone know of a tsql script that i can run that will loop through each table and add a primary key field?Thanks in advance?Richard M.
I have a Department Table. Can any one tell me its Primary Key. I have the order AutoNumber, D + AutoNumber, Code, Can you help me regarding this. Because some people never like to use AutoNumber. That's why I am confused.
I'm going to build database of university, but I have problem with primaru key,
This is the situation:
there are many faculities and each one has many departments,
each department has many courses,
each course has many sections..
The problem:
I want to make those fields in the same table and make the primary key generate from other fields,
(i.e)
I want the faculity be integer from 4 digit "Example the first faculity start with 1000 the second 2000 and so on" and the the department of each faculity will generate its value from the faculity number+interger number from 3digit "Example the department of the first faculity start with 1100 and the second on will be 1200 and so on "
the same thing will repeate for courses and sections so the sectionsID will be the primary key.
Do you know hoew this idea can be implement by SQL server 2005?
A column will be Primary Key. Others are B and C. I want A will contain B and C. I mean B data is X, C data is Y, A will be XY. How can i do this? Can i set in MSSQL or need ASP.NET?
