We have CDC & Replication on same Database. When there are huge DML i.e. 30-40 million updates within 60 minutes the CDC is behind for 3+ hours. We wanted to tweak @maxtrans & @maxscans options as per the below article to improve performance however we cannot use sys.sp_cdc_change_job to make the change as CDC is handled through replication. What are the alternate options available to make the change?
https://technet.microsoft.com/en-us/library/dd266396(v=sql.100).aspx
Thanks, Kranthi
Hi All,
we have table that contains large number of records and this table growing very rapidly. To avoid performance issues in future we are planning to do table partitioning for large count tables (creating secondary files and distributing data on ndf file, creating partition function and schema, etc.....).
Please review below scenario and share your advise on this.
1. Table contains 18 columns and We have selected two columns fortable partitioning that is PRODID (Uniqueidentifier datatype, primary key column with clustered index) & another column CreatedOn (datetime datatype).
2. we are rarely using CreatedOn column in our sql scripts/or stored procedure.
Can you please tell me which column is best for table partitioning that is PRODID or CreatedOn.
Please advise.
Hi,
Does anyone know how to access the CMS from within SQL 2008R2? I know which server\instance it is stored in from the
properties and also because I added it, I've read they can be accessed via this system table in msdb, however this returns no rows when I run it.
SELECT [name] , server_name , [description] FROM [msdb].[dbo].[sysmanagement_shared_registered_servers_internal] ORDER BY server_name; GO
Tried this one too
sysmanagement_shared_registered_servers
Hi all of you,
Why does sqlserver.exe so expensive? A picture worths a thousand words:
https://gyazo.com/bbeb4bb9e29307838c47835c53648993
I’ve started my laptop OS Win 7 Ultimate 4 Logical CORE where I have installed a couple of Sql12k instances and after idle for 20 minutes (no scheduled Agent jobs (it would use SQLAGENT.EXE as well), no SSMS opened, no backups, nothing at all, jeez) I've seen these values in taskmgr, ain’t not very high? I mean, apart of the services nothing else is running in my Sql Server.
One of my colleagues always complain that I am a pretty neurotic individual, maybe he’s right but, you know, what the heck is Sql using so many memory?? It does make any sense or at least without any reasonable explanation.
Thanks for your comments, always are veryappreciated!
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I need to identify and be notified when records in my SQL Server 2012 R2 database table meet a specific condition. For example, when a record in the trans_record table has any entries in the “status” column of “error”.
The query is simple enough and I have setup an SSIS package to query the table with the appropriate “where” clause. I followed this with a SQL Agent job to run the SSIS package daily at 7:00am and export the offending records to a flat text file.
What I need to understand is how I can be emailed only when a record is found with the query performed by the SSIS package. It appears that the SSIS package will always create a file regardless if any records are found.
I see that SQL Server supports Alerts and defined Operators to be notified, but I don’t understand how to be notified only if my query returns a valid record.
How can I set this up in SQL Server?
Thanks
I have a couple questions about this. I am using SQL Server 2014. The database that has problems is less the 100 MB. I will get how busy the server is later.
Background. I am helping someone identify the source of intermittent timeouts. My understanding is that their .Net applications are running fine most of the time. But then the application begins timing out. I haven't established yet whether this is a connection time out or whether the query times out (that will come later). I am toying with the following approach.
I create an alert on Lock:Lock Timeouts (timeout > 0)/sect on instance _total, if counter > 0.
The response is to run a job that runs a script that will dump the current connections, their waiting status, whether they are head blocker, etc (I can build this) into a table.
Next for Options, I want to set the Delay between responses to 4 minutes.
Questions:
1) What performance issues can I anticipate? Is there no risk, moderate risk or high risk of this alert causing performance problems in a scenario of moderate work load, high work load (100 transactions per second, a number I pulled out of my hat).
2) My second question I think that I can test. But off the top of your head, does an ADO.Net command cause a timeout that this alert can listen to.
Russel Loski, MCT, MCSE Data Platform/Business Intelligence. Twitter: @sqlmovers; blog: www.sqlmovers.com
Hi, I created a SQL database on Azure. I am able to connect from SQL Server management studio from my local machine as well from the SQL database portal online.
However, when my web site (web application) tries to start up and connect to the database, Azure throws an error that login by user failed. I've added the IP address of the azure web application to the firewall as well, and configured access by Azure services to True. In my web.config, I'm using the same connection string that Azure provided me (with my password included of course)
What else should I be doing? Any help will be appreciated.
Hi All,
Can you please suggest how to reduce the clustered index cost and operation from scan to seek.
SystemUserID column is primary column in table with unique identifier data type.
Hi,
I am looking for best practices and suggestions for the 24x7 live application Database Maintenance.
Have one application database on SQL 2012 which 24x7 live application. I am running rebuild job when i get maintenance window. But the problem i am facing is when I run this job its get locked with users transaction and run for infinite time until i manually kill the maintenance job. Steps i am running is
1) Kill Database connections
2) Run Index rebuild job.
Even though killing all connection at first step rebuild job get locks up with users connection. So while I am running Index Rebuild job manually I have to kill all users connections manually. Index Rebuild job is set through maintenance plan and HAve added first step to kill database connections.
Any best suggestion , workaround or best practices will help to solve this .
Thank you.
Please Mark As Answer if it is helpful. \\Aim To Inspire Rather to Teach
Hi all,
i have a typical query to divide the data based on column
In tmpdet table for vouchid 101025 refernce column has data more than40 lines as below:
jb 12000 paidnow, i have a query as below:
SELECT A.vouchid, Split.a.value('.', 'VARCHAR(100)') AS String INTO #temp FROM (SELECT vouchid, CAST ('<M>' + REPLACE(isnull(reference,''), char(13) + char(10), '</M><M>') + '</M>' AS XML) AS String FROM tmpdet) AS A CROSS APPLY String.nodes ('/M') AS Split(a); select td.vouchid,reference, --CASE --WHEN COUNT(String) < 33 THEN '0' --ELSE '1' --END IsVoid , T.String --ROW_NUMBER() over(order by reference) RowNumber From tmpdet td LEFT JOIN #temp T ON td.vouchid=T.vouchid
where td.vouchid in (101025,101026,107547) group by td.vouchid,reference,T.String order by td.vouchid drop table #temp
which resulting data as :
here in vouchid column i have 101025,101026,107547 id's and string in reference column is divided based on the lines in reference column.
now, i need another column Is_Void with datatype integer in which result is :
As of now string column is having data divided from refernce column (if reference column forvouchid 101025 has 42 lines of data string column is divided as 42 rows for same vouchid.
now, what i need is if no.of lines in refernce colulmn for single vouchid is greater than 33 lines then Is_Void should be '1',if not '0'. if suppose no.of lines in reference column exceeds 33 lines then Is_void should be '1' for vouchid 101025 and vouchid 101025 should continue for next lines in refernce column (34-42) and should have Is_Void column to be '0'...since (34-42 lines)is < 33 lines.and later next vouchid 101026 should be coming with its refernce colulmn and string division and IS_void result based on no.of lines in reference column. Please help ..i need this in urgent..
thanx in advance..
lucky
HI Everyone,
IF anyone faces this issue with Database mail on SQL 2012 SP3? it used to work till yesterday and all of sudden stopped receiving mail alerts from SQL and found this.
The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 1 (2016-04-03T17:32:25). Exception Message: Cannot send mails to mail server. (The operation has timed out.).
)
Any help or workaround is greatly appreciated.
Thanks
Please Mark As Answer if it is helpful. \\Aim To Inspire Rather to Teach
hi all,
Till now i'm using page number in header and footer so that the page number starts from 1
="Page " & Globals!PageNumber
but now i need page number starting from what number i needed
i have one parameter in which values come from drop down as 1,2,3,4,5..etc
now if select parameter value as 1 my page number should start from 1..if i select 2 it should start from 2...etc
how can i acheive this..
pls help
thanx in advance..
lucky
I am attempting to write an SQR (it will run from PeopleSoft) that updates a linked server. It fails with the following error:
(SQR 5528) ODBC SQL dbexec: SQLExecute error 7412 in cursor 2:
[Microsoft][SQL Native Client][SQL Server]OLE DB provider "SQLNCLI" for linked server "DUL41" returned message "No transaction is active.".
(SQR 5528) ODBC SQL dbexec: SQLExecute error 7391 in cursor 2:
[Microsoft][SQL Native Client][SQL Server]The operation could not be performed because OLE DB provider "SQLNCLI" for linked server "DUL41" was unable to begin a distributed transaction.
Error on line 58:
(SQR 3735) Could not execute SQL.
SQR for PeopleSoft: Program Aborting.
-------------------- Details ------------------------------
- The code is simply doing a delete right now. delete from linkedserver.db.dbo.table where column = 1
- The SQL runs fine from Query Analyzer, so I think MSDTC must be setup correctly everywhere, and the linked servers must be defined correctly. My QA test is using the same ID (sa) as my SQR.
- If I just write a select statement in the SQR, it works fine.
- in this example, SQR is connecting via ODBC, using SQL Native Client driver.
------------------ Environment --------------------------
- Main server: Win2003, SQL2005sp2, active/passive cluster. MSDTC is setup on the cluster.
- Linked server: Win2003, SQL2000sp4, not a cluster. (I also tried a SQL2005 server just to test) This is the DUL41 server referenced in the error message. MSDTC is running.
- Everything is running from a different Win2003 box, that connects to the main server using ODBC/SQL Native client
Thanks for any help or ideas. Even any way to get better error messages, or a better way to test this.
Hi all.
We are experiencing issues with a web application, in the log files for the application we see for example this error message:
System.Data.SqlClient.SqlException (0x80131904): Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. ---> System.ComponentModel.Win32Exception (0x80004005): The wait operation timed out
I've read about this and similar and figured out we need to check out the query causing this, we get the issue at peak hours when all users log in.
What is the most easy way to find the query, so I can start tuning it?
Im working as a dba, but I have good communication with the application developers.
Hi all,
i have an SP to be for which i have 2 parameters as
CrownNumber int ,NoofCrowns int
i have a select statement in SP which returns values as below:
vouchid 101025 has refernce column value more than 40 lines..so i divided each line as single row in string column
so that for same vouchid,same refrence column will have string column as row by row in reference column
reference column has data for vouchid 101025 as below:so i divided each line as seperated row in query ..that's why result is as per the image..
jb 12000 paidnow, i need column numberofcrowns to divide if string column for vouchid 101025 exceeds more than 33 lines that should be value 1,
and rest of 34-43 values for vouchid 101025 ..numberofcrowns should be 2
next for other vouchid 101026 check whether string rows are >33 or <33 if less than 33 then '3' for newnumberofcrowns value..then next vouchid 107547 check if >33 or <33 <33 rows then '4'....so on...
pls help..thanx in advance..
lucky
Hello All,
I am able to run the below command in sql 2005 but in 2008 getting error : truncate_only' is not a recognized BACKUP option.
Back Up Log [DBName] with Truncate_Only
dbcc shrinkfile([logFileName])
Thanks in Advance
Ashwin
