I am wondering if there is a correlation between the size of a database and the amount of RAM required in the server. Here's what's going on:
NT4.0 SP 6a, SQL 7.0
2-800 MHz Pentium III Processors
512 MB RAM
Swap Files: two, divided evenly between two partitions, min 512 per partition (dynamic)
3- 9.2 GB Drives, RAID 5
SQL Database size: 2.5 GB
The SQL administrators have a scheduled job set to dump the database every four hours, so they have 6 of these dump files per day. Seagate Backup Exec v 6.? backs up those files every evening. Of course, this is a mission-critical application.
As the NT/Hardware administrator, I was tasked to flash upgrade all the hardware that could be flashed. That happened about three weeks ago. Ever since I flashed it, getting the data dumps has been an inconsistent process. Sometimes it works, sometimes it errors out. The error message is " Lost Delayed - Write Data: The system was attempting to transfer file data from buffers to (path). The write operation failed, and only some to the data may have been written to the file."
On and off during the day, you can't even copy a small file on the server without receiving the same message.
Before I flashed the server, it was blue-screening and needing to be rebooted about once every two weeks. Since I flashed it, the server hasn't been rebooted, because it hasn't blue-screened.
The database dumps are about 2 GB. We were thinking that the way the dump process worked was that a snapshot of the data was put into memory before it was written to disk. We thought since the dump size was larger than Physical Memory + Virtual Memory, that that could be causing the error.
What do you guys think?
1. Is dumping the database first the preferred way to get a backup, or should a backup directly to tape be scheduled instead?
2. Do we have enough RAM for the database?
3. Are there special settings we should set for the RAID controller card to maximize throughput for SQL?
Thanks again. I am definitely not a SQL DBA and any information you can provide would be really helpful.
A customer of ours has reported a intermittent error using one of our applications to receive some stock.
Under normal circumstances the application updates about 10 tables in a single transaction, inserting to some, updating others. After the stock receipt they print off a Crystal report against the receipt data.
The customer is saying that (very) occasionally they perform a receipt (no errors) and print off the report (no problems) yet when they come to access the data some time later it is almost as if no receipt has been made.
I have seen their data and can see what they mean. None of the expected data updates seem to have taken place. And yet there is the report sat there, indicating that it must have...
Looking closely at the data I can see breaks in the sequencing in certain identity column-carrying tables, during the period when the stock receipt was made. To all intents and purposes, therefore, it looks as though a rollback has occurred.
Is this possible? Could a Crystal report show uncommitted data which is then rolled back? How 'long' can a rollback take? Can it be initiated in some other way?
NB: We have done all the obvious things like: - checking they have received against the correct DB; - checking that no app or procedure can remove data in this way. - verified that the report is reporting from the correct place. etc.
The 'missing' data is so perfectly removed, my instinct says it must be a rollback but I can't see how this can be (yet).
All suggestions gratefully received - how could I track down whether this was occurring? Or is it my fevered imagination?
Many thanks!!!!
pmb
ps: According to our records, this customer is running SQL 7 SP3.
I used sql 2000 create a data base at home call 'Mysite' several months ago, there are about eight tables and 30 stored procedures. When I run my asp.net program at home yesterday, and found can't connect to database. The error as follow: "Cannot open database requested in login 'Mysite'. Login fails. Login failed for user 'MINGYANG-MSONXHASPNET'. "
When I open the database, very surpriced to found that my database was suspect and not any item inside it. The suspect database include CommunityStarterKit. But Northwind and pubs database still there?
What happen? Last week I just download new Norton antivirus software, does have any relationship with it? Does data really gone? How to solve this problem?
We lost all the data we had in a table. We restored the db and the transaction log up to a point in time, but could still not recover the table. We eventually only do db restore without the transaction log. We recovered the data in the table in question, but lost all the data entered that particular day. Does any body have a solution or suggestion that can help? I will be greatly appreciated.
this morning, one user asked me that she entered a data (only one record,)on the database yesterday, but later she checked that is gone, I check the database, i am sure the data is now there. how do i retrieve the data back, or how do i know whehter this is user problem? Thanks in advance
Hi Guru,This weekend, I migrated SQL Server7.0 to 2000 and below is thescenarios:1.) At exactly 4:00PM on Sturday 17th, do full backup(T-SQL) and put adatabase into single user mode.2.) Copy both Saturday 4PM and Friday night full dump to the SAN.3.) Delete WinNT4.0.4.) Reinstall Win2003 and service pack3a.5.) Copy Saturday 4PM backup file to the server and do restore and douser ID mapping.This database is in full mode and I do log backup every hour. However,after restoring the database, any changes after the 14th were missing.Now, When I restored Friday night backup, we still recovered data tothe 16th. My question is, why the 17th 4PM backup did not copy anychange from 15th to the 17th Saturday?I still had Sturday backup file, howe can I recover the 17th data? Logexplorer or ApexSQLLog?Is this Disk issue?Thanks very much,Silaphet,
I have encountered problem in the merge replication with conflict caused by foreign key constraint. As I did some reseach that it can be avoided by increase the upload and download batch generations.
My question is how can I recover the data which has been lost?
i make an application to insert data to sdf file and save it
when i colse the application and open it again i find my stored data on the sdf file well
and if i closed the application 1000 times i'll find my data ok
that's ok and that's not the problem
the problem that when i open this sdf file from sql server management studio and make a select on it i don't find any result and when i try to open the db from my application again i found it empty with no data
i realized that management studio delete's the data from my db
Is there any way to get the deleted records from LDF or MDF file. Today by accidentally I executed one query and that dropped my table Inbox(table name only) from database. And in that table there was more 4,000 records, all these lost. So anybody can help me how to recover this table records?. Is there any way to get these? I don't have any backup for this table.
hi, i want to lost data automatically after 3days. but i don't know how to use job scheduling in sql2000 and how to query to add date to datatime column automatically when the data is inserted. Plz help me!
Urgesnt..data lost when run the script.i generate a script a data base then i run it on query analizer in same data base .But problem is data base and all design view is safe but all data is lose.how can recover it.thanks.
a sql server database always contains two file.*.ldf *.mdf When *.ldf was deleted the database may suspend.we can repair such database through about 20 steps.
if you want repair your database .please contact me with email:cn9526@163.net or msn/email :paulyang8848@hotmail.com
you can also see our homepage http://www.haou.net/sqlother/
HiWhen we issue a DBCC SHRINKFILE with empty option, the data fileis removed and the space is alloted back to the OS.Same way when we issue a an ALTER DATABASE to remove a database,all the data files and transaction log files are dropped.But can these files be recovered again by using any of the diskrecovery tools?Achilles
I have a website that is used to enter dates from a calendar. For example, user A might go to the website and select 20 different days in January. When user A clicks on the Save button the dates are written to the database with an INSERT command. This works fine. However, when user B then goes through the same procedure, say selecting 5 dates that are in the set selected by user A, those dates are properly saved in the database but the rows containing user A's same 5 dates disappear. I suspect this is something simple but I'm new and ignorant. Please help.
I am migrating from 2000 to 2005 and in the process of rewriting DTS to SSIS. So far so good.
I have an import of a flat file that I need to reproduce that works fine in DTS but throws SSIS.
The file contains details of products, and has a Long Description field that may contain lots of different chars - CR & LF amongst them. It's source and destination columns are Text type.
The file is tab delimited, text delimited with double quotes, with row delimiters of CRLF and column names on row 1.
The error SSIS throws is "The column delimiter for column "LongDescription" was not found"
I imagine (perhaps wrongly) that this is because of the extra CRLFs but it worked fine in DTS. It also previews fine, and lets me define the column properties OK in SSIS package designer.
Any help greatly appreciated. I am trying to avoid the obvious thing of replacing those chars in that field at this point as currently the export is shared between a live production server, and my test 2005 rig.
I know that anything in a CDATA section will be ignored by an XML parser. Does that hold true for the SSIS XML Source?
I am trying to import a large quantity of movie information and all of the reviews, synopsis, etc are contained in CDATA. example:
<synopsis size="100"><![CDATA[Four vignettes feature thugs in a pool hall, a tormented ex-con, a cop and a gangster.]]></synopsis>
Sounds like a good one, no?
The record gets inserted into the database however it contains a NULL in the field for the synopsis text. I would imagine that the reason for this would fall at the feet of CDATA's nature and that SSIS is ignoring it.
I have Outlook 2007 w/BCM running on XP Pro workstation connecting to a SBS 2003 R2 hosting my SQL 2005 database. I have two problems: First I can get the BCM to connect to the remote data but periodically the connection is lost and many times it requires a reboot to reconnect. Secondly related to teh first, I can never get MS Accounting 2007 to connect to the same server and database from my client.
I have already set up the server to use port 5356 via TCP amd added a hole through my client windows firewall for the same port. Both client and server are set to share files and printers.
Data is being trnasferred from an Oracle view to a SQL Server 2005 table.
Decimals can be previewed in the from the "SQL Command Text Window" but the columns in the target table which are defined as float shows the data being rounded to zero decimal places.
For the Data Source the always use default code page is selected.
I am using visual basic 2008 I am making a program, I used sql server compact edition (sdf) (i think it is no more only for mobile device, I am working for desktop application)which i created with the same visual basic. i update data by using table adapters,
when I close the program and build again, the data previosly updated are deleted, and I get empty database?? why is that. do i need to set some copy to.........properties. i have used copy if new.
After designing a SSIS package in Visual Studio 2005 that had two connection manager defined to keep the password. After I deployed the package to a file system. I then Imported the .dtsx file after making a Integration Services connection in Sql Server Management Studio. When I tried to run the package it failed when it tried to make the connection. When I edited the connection manager connection string and added the password and the package ran fine but it does not retain the password!. I need to have this package scheduled to run daily so I need to know how to have the package keep the password in the connection string. I have seen other posts on this issue but not seen a good solution. Could someone point me to the proper MSDN article that would explain how to implement this ? Is it a SQL Server configuration issue or a property in Visual Studio SSIS design time ?
I am having following problem in our SQL Server 2000 database €“
Somehow/body accidentally backup (complete) our database back to an old back up from 17th March 2008. So the data from 17th March to 20th May is lost.
And that was the most recent backup that we had for the database because Maintenance Plan was not working from the last march due to some kind of failure and nobody knows about it. L
Using Redgate€™s Log Rescue and Apex Log Rescue tool but we could not find any entry from 17th March to 20th May. Most probably because of the complete back up.
Can any one help me out in this situation? Is there any way possible to retrieve the data? It€™s really important for me.
Thanks in advance. I will be looking forward to you guys reply.
Hello, I have worked with SQL Server 2000 but now we have a requirement where I need to write values from an asp.net form into an XML type in SQL Server 2005.I have never used XML as a type in SQL Server 2005. How do we write xml into xml type. For example the structure of XML is something like:<application><applicationID = "value"></applicationID><customerName="value></customerName></application>I have to write this kind of XML into the XML type and later retrieve these XML values and populate the form again.Kindly suggest. Thanks a lot.
hi all, I'm working on vb.net 2.0 with clr stored procedures. i've created a project from VB-->Database. there is a stored procedure in my sql server 2005. In the vb project i have to read the stored procedure and write it as xml . and i have to give this writed xml to clr stored procedure.. do any one know the code for this? if so please post here..
hi, i want to create a form consist of one table of 2 column and 2 row. when i retrive data from the database, how do i wite the data into the tableexample Database retrived datastudent id student name12 nancy22 tracythe table apprence would be like thisc1 r1 value 12c2r1 value nancyc1r2 value 22clr2 value tracyany one help appreaciated
I need to write data returned by a stored proc to an XML file. The resultant file will then be consumed by an external application. The file has to adhere to a specific schema. Is there a way to do this through SSIS? Is .NET CLR a better option?
I need to write data returned by a stored proc to an XML file. The resultant file will then be consumed by an external application. The file has to adhere to a specific schema. Is there a way to do this through .NET CLR in SQL Serer 2005? Is SSIS a better option? Thanks.
I have big problem now, can somebody help me? I have a program used ASP+SQL2000 ,the connection string is : strConnection = "Provider=SQLOLEDB;Server=BOUNwindows,1005;User ID=training;Password=training22;Database=ourtraining;" Everything works fine, I can insert data, delete or modify. But since we changed sql2000 server to sql 2005 express, then I can read data but can't insert data(write data into sql 2005) I checked all permission are correct on sql 2005, program are correct, everything looks good, but only can't write data into sql2005
Hello there,How can i take data out of my database, put them into a textbox and then separate with a comma..An example:----------------------------------| column Email || mail1@email.com || mail2@email.com || mail3@email.com |----------------------------------Put them into a textbox and separate with a , (comma)-------------------------------------------------------------------------------------| mail1@email.com, mail2@email.com, mail3@email.com |-------------------------------------------------------------------------------------Anybody who know how I can do that? :S
Dear expert, please show me some examples of how I can update an Microsoft SQL table data with an excel sheet. Meaning, when I upload an excel sheet using an ASPX page the data in the excel sheet will be transfer to a particular table in the database. Thank you in advance.
