Is It A Good To Replace SQL Script Files With XML Files?
Jul 23, 2005
I am thinking about replacing the INSERT data script
files that I have with XML files. This way I can open the XML
file using an XML Editor and see the values in a GRID and
make changes easier.
Do you see any problem with this approach?
I managed to put together some code that is exporting
a SQL table with its data to an XML file and also a code
that 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 can
use a single xml file that will hold both the sql server
fields, the datatypes and their values.
If you have links to some sample code that has anything
to do with the datatype export and import I am working
on, can you please share them with me?
Most importantly what do you think about the idea of using
XML files vs sql scripts?
Thank you
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Jul 20, 2005
Hi.I am wondering if it is a good idea to replicate sql server db filesusing frs.I don't really know how the frs works, sodoes frs replicates the whole database from time to time or just theportion that is changed?Also if the db is expected to change very often, and wouldn't it makethe whole system down?I wonder if it's a good idea just to make a backup of the database andcopy it.What's the usual practice?
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Sep 12, 2007
I have inherited some responsibilities for which I'm not really qualified, so I'll push on through and maybe not totally fall down.
Assume 10 50GB databases, each in a single MDF file. All these MDF files reside on the C drive (the only drive on the system), running SQL 2005 in a 32-bit Windows 2003 or later, 8GB RAM.
The C drive is 6 physical disks in RAID 5, say about 1.0 TB or so. We have 4 dual-core processors on the box.
We have limited simultaneous users, initally about 8 users doing very heavy write on all tables in any one database. Later, we have about 15 users connecting via Web interface, and doing very heavy read and light writing. Each of the 10 or so database has this lifecycle: Heavy write for about 2 weeks (load data) then heavy read for about 1 month (research and search data), then nothing ever again (db is taken offline).
Of course, this is not enough information to go on, but let's just go on it anyway.
My TempDB, Log (simple recovery), Index etc is all on the same RAID 5 drive (C).
I have two basic questions I'd love to hear feedback on:
1. Is there any real advantage to creating 8 Data files for my database (one per processor core)?
2. Given that the hardware people here REALLY don't want to change anything, what should I fight for first:
a. Separate drive for LOG files?
b. Separate drive for TempDB?
c. Something else
Thanks in advance.
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Mar 12, 2008
Hi.
What I want to know is what the issues/scenarios are of only using copies of mdf/ldf files as backups.
TIA.
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May 4, 2006
I have created a program using SQL-DMO to replace an SQL Server 2000 database by setting it OFFLINE, replacing the .MDF and .LDF and then setting the database back ONLINE.
SQL Server does permit replacing the files while offline. And when the database is back online, everything seems to have worked perfectly with the new database files.
My questions is ... What potential problems (if any) exist with this process replacing a database?
Other methods I have considered:
- Detach, replace DB files, re-attach
- Delete old database, attach-using-new-DB-files
Thanks for your input!!
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Jan 9, 2015
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.
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Mar 13, 2008
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.
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Apr 24, 2008
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.
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Imports Microsoft.VisualBasic.FileIO.FileSystem
Imports System.IO.FileSystemInfo
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()
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")
'Set the properties like username & password
cm.Properties("ServerName").SetValue(cm, "ftp.name.com")
cm.Properties("ServerUserName").SetValue(cm, "username")
cm.Properties("ServerPassword").SetValue(cm, "password")
cm.Properties("ServerPort").SetValue(cm, "21")
cm.Properties("Timeout").SetValue(cm, "0") 'The 0 setting will make it not timeout
cm.Properties("ChunkSize").SetValue(cm, "1000") '1000 kb
cm.Properties("Retries").SetValue(cm, "1")
'create the FTP object that sends the files and pass it the connection created above.
Dim ftp As FtpClientConnection = New FtpClientConnection(cm.AcquireConnection(Nothing))
'Connects to the ftp server
ftp.Connect()
'ftp.SetWorkingDirectory("..")
ftp.SetWorkingDirectory("directoryname")
Dim folderNames() As String
Dim fileNames() As String
ftp.GetListing(folderNames, fileNames)
Dim maxname As String = ""
For Each filename As String In fileNames
' whatever operation you need to do to find the correct file...
Next
Dim files(0) As String
files(0) = maxname
ftp.ReceiveFiles(files, "C: emp", True, True)
' Close the ftp connection
ftp.Close()
'Set the filename you retreive for use in data flow
Dts.Variables.Item("FILENAME").Value = maxname
Catch ex As Exception
Dts.TaskResult = Dts.Results.Failure
End Try
Dts.TaskResult = Dts.Results.Success
End Sub
End Class
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Feb 24, 2015
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PushD "
emoteservershareDIFF" &&(
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) & PopD
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?
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Oct 8, 2007
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Oct 1, 2004
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?
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Sep 17, 2004
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!!!
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Dec 11, 2005
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.
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Jul 20, 2005
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!
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Jun 14, 2007
Hi All,
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?
Thanks in Advance
Gaurav Matkar
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Jan 21, 2006
Is there a way to do this with some sort of task ?
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Nov 8, 2006
I'm using script task to rename files inside foreach loop files,code like shown below
Dim file As New System.IO.FileInfo(CStr(Dts.Variables("User::FileName").Value))
dim newname as string = Split(file.Name, "_")(0) & ".jpg"
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I tried to use file system task to perform that,but failed either
Rename file operation in file system only can rename a file in a specified location,who can help me?
TIA
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Sep 3, 2007
Hi gurus,
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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)?
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Jan 22, 2008
Hello,
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?
Best Regards
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Sep 22, 2004
Hi!
I'm using SQL Server 2000!
How to know then Data files size and Log files size by Store Procedures or Sql query?
Thanks!
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Sep 19, 2006
Hi,I guess it is a very simple question but I really can't think of an answer,If I'm using csv files as a database what disadvantages may I have ?I encrypt the data so it is secured and I found a csv reader that reads the files very fast.Why would I use SQL instead ?Thanks,Alex.
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Jan 27, 2008
Hello,
I am working with a database that has 4 files, 2 with weird extentions and one with .NDF and the other with .ldf. Can I combine the files when I restore so that I have just two files like the rest of the data files on my system. I am no database expert, need some help.
Thanks.
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Nov 9, 2000
Am i right in saying that Log Files can only be saved onto the physical disk of the server? I think i am. In that case has anyone got a good way of scheduling a Job that removes the Log Files from the local server and puts them onto another server?
Cheers
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Jun 28, 2000
Is there a way to truncate or reset a log while a process is running on the database?
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Oct 25, 2000
Firstly I should mention that I'm new to the SQL Server arena. I'm using SQL server 7.0 with SP1.
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Thanks,
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Oct 23, 2000
We want to run some dts packages from files.
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Thank you,
Dianne
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Nov 11, 2002
Hi:
I am new to this forum..Does anyone know of a quick and easy way to combine MDF and NDF files for the SAME database??...Or does the entire database have to be exported and then imported into database with only an MDF file available??..thanx in advance for the help !!!
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Jun 19, 2003
I'm new to the world of SQL. I have a Db that has a size of around 4Gb and a log file of 40 Gb. I've got approx 5 Gb of disk left. How can I reduce the log file size??
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Sep 3, 1998
Hi there! I hope somebody out there can lend a helping hand on this challenge I`ve been struggling with. I am new to this site so please excuse my ignorance on protocol. Anyway, I`m faced with a challenge of loading a 100 plus column, comma delimited file into SQL Server. I had this process working at one point, but for whatever reason, am receiving "memory allocation" errors related to my BCP process. What I`m doing is trying to load a comma delimited file into SQL Server. I`ve "creatively" created a format file that loads the data into their respective columns and "tricks" the comma quote comma delimiters in dummy fields (associate a 0 server column). So now I`ve got a format file with about 200 Host file count (column count). The problem is is that I run my bcp via the command line, my Dr. Watson kicks in and I get the Window`s NT standard "Application Error" stating that I do not have enough memory allocated resources. What is strange however is that if I change my column count to say 150, my bcp works (minus that last 25 fields). Not that I`m picky or anything, but my users insist they need the last 25 fields. I`ve tried everything I could think of from upping my virtual memory threshold, to running on different workstations (including the SQL Server). Any advice would be greatly appreciated.
Desiree Malapitan
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Jan 16, 2002
I need help.
Here is the problem.
I have 4 .dat files that I need to combind into either one table or file.
I can't seem to get this process to work. The only delimiter is a comma
between each row.
I have not got a clue how to do this. When I use the import wizard it
does not work.
Does anyone know how I can get these files inserted into a SQL table??
Thanks for your help. I seem to always get a solution from you guys.
Dianne
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Jul 28, 2006
hi guys,
this may sound like a silly question - so here goes, i have a .sql file and basically i need to know jow to run the sql in that file on my database.
Do i need to copy the code across to query manager?
thanks for your help
andy
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Dec 20, 2005
Hi All,
One of my databases has .ldf file that is bigger in size than .mdf file. Is it a problem? If yes, what can cause this problem? And how to fix it? I looked at all the other ones and the .ldf files are smaller than .mdf files. Thanks.
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