Microsoft's SQL Server is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. It originated from the Sybase SQL Server codebase, which is why both products use the extension of SQL called Transact-SQL (T-SQL).

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Row locks on selects

select t.*, row_number() over ( partition by t.Entity_Identifier order by t.Message_Sequence ) as seqnum from Process_Activity t (ROWLOCK) where t.Process_Id = Is it possible for ...
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37 views

Will longer DB transactions make calls to other DB wait?

I have a fundamental question but unable to find precise information online. I opened up a DB transaction (SQL Server) and making multiple inserts, updates, delete etc; the entire process takes about ...
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33 views

Why does my query search datetime not match?

select * from A where posted_date >= '2015-07-27 00:00:00.000' and posted_date <= '2015-07-27 23:59:59.999' But the result contains a record that has posted_date today: 2015-07-28. My ...
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31 views

SQL Server Mirroring Removed

Does anyone know how to tell when SQL Server mirroring was removed from a database? My log file is flooded with login failures but I can't find mention of removing of a mirror. Is there any DMV way ...
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38 views

SQL Agent job history not found for few jobs

I have;backup ,rebuild Indexes , Update Stats and few other jobs like space alerts, replication jobs etc which run frequently on SQL Server 2102-SP2, Build Number:11.0.5058.0 and I do not see any ...
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35 views

limiting number of error log dump files retained

SQL server 2008 R2 if I limit the number of error logs retained by setting the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\MSSQLServer\NumErrorLogs will this limit the number of dump files ...
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47 views

How to resolve Error 7311 returned by a job running against a linked server?

I have a job and a linked server. The job was working fine for a while, but recently I started getting this error message and I couldn't find a soloution for this. Executed as user: ... Cannot ...
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45 views

Database fragmentation and heap SQL Server

We have critical performance issues with our production database (its around 300 gb size) We have run the following script for a few huge tables : DECLARE @db_id SMALLINT; DECLARE @object_id INT; ...
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33 views

Could not redo log record on mirror

One of my database mirrors is in the suspended state today and the error log on the mirror shows the following. Could not redo log record (338934:102862:477), for transaction ID (0:848150408), ...
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25 views

Endpoint acting as a mirror and witness?

Let's say I have 4 SQLServer 2012 R2 divided into two mirrors: SQL1-1 with its mirror SQL1-2. The Witness is SQL2-2. SQL2-1 with its mirror SQL2-2. The Witness is SQL1-2. The mirorring has been ...
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289 views

view server state permission was denied

The strangest thing is happening on my SQL Server Management Studio. When I right-click any table, I get a "VIEW SERVER STATE permission was denied on object 'server', database 'master'. (.Net ...
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Database engine installation failed

Being asked to implement an application for purchasing management, the database managing system which I have to install, is SQL Server 2008. I am having some issues while installing the main ...
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24 views

How Columns_update() Function Works in Trigger To Find Updated Columns Name

I am in confuse about trigger function Columns_Update(). i Have Basic Idea about this function that it returns a varbinary and it is use to get updated Columns in Trigger even i have Find The code ...
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34 views

How do I check the status of an SSAS Cube that is currently processing?

When you process a cube through SSMS by right-clicking and selecting "process" it will display a window with the current status of each of your processing objects. In my current project I am using a ...
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64 views

Why are SELECT queries in sleeping status holding open transactions

Using sp_WhoIsActive, I see that I have a lot of processes in a "sleeping" status, several for hours. I am not sure of the cause and am still troubleshooting (timeout? bad code with uncommitted ...
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37 views

Unable to connect to SQL Server on AWS

We have two Sql database servers (windows 2008 datacenter r2) with same name but with different IP. can it be possible? we are not able to connect second one which we have created after. Both are on ...
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33 views

SSDT sqlpackage.exe CreateNewDatabase Parameter Not Respected

Originally asked this on SO but that question seems to be populated only by tumbleweed so wondered if this might be a better forum for it. I have a VS2103 solution which includes a database project ...
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26 views

Does SQL Server 2012 Standard Edition have an option for select a window over time range?

As an example, in StackOverflow they answer the question Finding a count of rows in an arbitrary date range using Oracle. One of the queries is very similar to what I need, but in reverse, I need ...
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41 views

SSIS - The value could not be converted because of a potential loss of data, runs fine in BIDS, not on the server

The value could not be converted because of a potential loss of data I'm getting this error when running an SSIS package from a server job. Normally this is some sort of type error, but I can't ...
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100 views

Linked Server vs. Ad Hoc (OpenRowset / OpenDatasource) Distributed Queries

I have an application which needs to grab data from different clients' databases that reside at the client's location. So alongside their normal details such as company name, address etc, I also store ...
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26 views

LinqToSql query is having intermittent problems

We have a simple, single table, LinqToSql query running against a SQL Server 2008 database. Every so often the query locks up and stops performing. Clearing the execution plans for the table is the ...
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33 views

Schedule data from instance to instance have I maxed out tableDiff

We have a process which uses tableDiff. From one SQL Server 2008 R2 instance to another identical instance. It has worked very well for a long time! I have a situation where one table now has ...
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33 views

Processing data while keeping frozen frontend database online

What is the best approach at having a "frontend" database online and working, while processing and generating new data in the back? I have an scenario that some tables and even whole databases data ...
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104 views

How SQL Server translate special characters like '$' and '\'

I write a query like that: SELECT $ a, \ b, -- also for other currency symbols like `€` $ 1 c, $ . d, $ .'e', -- test space 1 + $ f, ($) + 1 g, -- test ...
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49 views

Good SQL Agent job wrapper… TRY/CATCH, Custom logging. (Review and provide input)

I'm looking for input on a small snippet of code i wrote. We use SQL Agent jobs to prepare big databases from production, before we ship the to test-environments. To get better feel for duration of ...
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60 views

Query execution taking long time

SELECT sqltext.TEXT, req.session_id, req.status, req.command, req.cpu_time, req.total_elapsed_time FROM sys.dm_exec_requests req CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS sqltext select ...
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34 views

Linker Server data import

I have three servers, A, B, and C. Each with a individual database. A and B are linked B and C are linked All queries most be run on server B for security reasons. I have data on server C which I ...
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32 views

Replication Data Issue

After configuring replication all the data from tables has replicated from publisher to subscriber. Now my requirement is whenever I insert new record in publisher only that record should replicate ...
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76 views

SQL Server losts and shows error 26 after random time

I have a Windows Server 2012 as server, which have SQL Server 2008 R2 where our database is stored. We have another 5 PC's installed with Windows 7 64-bit, which are run under domain of above server, ...
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54 views

SQL server actual execution plan: finding bottlenecks

I have a batch (7 queries) which executes in a couple of seconds locally by takes more than an hour in production. I've have a .sqlplan XML file from that long running query on production and trying ...
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57 views

Data compression within Internal Tables in SQL server 2008R2

We are doing downgrade from enterprise to standard for couple of servers which are not using any enterprise features: For one of our TFS(Team foundation server) database TFS_resx, when we ran ...
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26 views

Uninstalling MS sql server 2012 issues

I'm trying to uninstall ms sql server 2012. But when I click Microsoft SQL Server 2012(64 bit) and choose remove option it shows like this. Then how can I remove the MS SQL Server 2012? Please help. ...
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88 views

SQL Server 2008R2 to SQL Server 2012 Install

I'm trying to upgrade one of my SQL servers from 2008R2 to 2012 and I'm getting an error popup within a couple of seconds from starting the setup The Error is TITLE: SQL Server Setup failure. ...
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52 views

Installing instances of older versions of SQL Server

Are there any issues to be aware of when installing an instance of previous version of SQL Server AFTER installation of a newer version? e.g. Installing 2008 to a server with an existing 2012 ...
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22 views

Calculate Num_Index_Pages for sizing design

I don't understand Step2 #8 Calculate the number of number of non-leaf pages in the index. I am not sure I understand the "Level". I have Num_Leaf_Pages=508 & Index_Rows_Per_Page=476 I don't ...
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62 views

Trigger failing when called using sp_executesql

We have a recursive trigger on a table that executes AFTER INSERT. There is a check to ensure the trigger does not recurse more than 32 levels deep: IF(SELECT TRIGGER_NESTLEVEL()) >= 31 ...
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37 views

Suggestion for SQL distributed transactions via MSDTC

Currently we do not use MSDTC in our company. Our developers would like to start using MSDTC for Distributed Transactions within their applications. Questions: Is it okay to use MSDTC for SQL ...
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145 views

SQL Server 2005 Cluster Service pack 4 upgrade failure at remote user account

I built SQL Server 2005 ENT Cluster on Windows Server 2008 R2. I need to upgrade it to SQL Server 2005 SP4. However, I get this error at the Remote User Account screen Enter the remote user ...
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112 views

how to disable and enable SSIS package using commandline?

I have a scenario where SSIS packages are deployed at the customer's site and they have some data issues. Because of this we are developing new packages to fix the corrupted data. When my new ...
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37 views

Create Nested XML in a Sql Server Indexed (Materialized) View

This page https://msdn.microsoft.com/en-us/library/ms188276.aspx indicates that if you wanted nested XML (ie an XML Tree) then you need to setup your query like this: SELECT Col1, Col2, ...
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47 views

Best practices to segment people and attributes for advertising database

we have a database where we store people some attributes per person in the following tables: people (id, name, email, phone) people_attributes (id, person_id, attribute_name, attribute_value) ...
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84 views

SQL Script - SSMS Good, Job Bad

long time lurker and this is my first post. I have a SQL Server 2005 pro box running a handful of databases. I also have a few scripts I run once a week through SSMS to update data, so I thought I ...
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75 views

Query Performance - Why is a query slower when there are two criteria on the same column?

I have these two queries against a view, where I've added WHERE clauses against a date column (Indexed, Unique, Non-Clustered, Ascending): SELECT ColA FROM MyView a WHERE a.[Date] >= ...
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170 views

Can we configure Certificate-based Authentication to connect(logon) sql client?

Can we configure Certificate-based Authentication to connect(logon) sql client? or any other method to connect sql client using mutual authentication(sql server and sql client)?
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43 views

Alwayson Database Recovery Failure during TDE encryption

Last week I enabled TDE encryption on my AlwaysOn Availability Group databases of SQL Server 2012. During the encryption of one of the larger databases, bigDB (~200gb) a failover event occurred. Of ...
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40 views

DBCC SHRINKFILE (N'XYZ' , EMPTYFILE) using single core

Is there any way to force DBCC SHRINKFILE to use more than one core? We're running SQL Server 2014 on a hex core machine - and SHRINKFILE is using one hyper threaded core. I/O is at a small fraction ...
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63 views

Moving Large Tables and All Indexes to a new File Group

I'm looking at implementing File Groups on an existing database that's roughly 600GB. The largest hurdle I have is actually setting this up in production. I need the database to still be available but ...
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64 views

Multiple SQL Server Indexes, which ones to keep?

I am looking at my database that several people have worked on. A particular table is responding slowly when queried on a certain join. I notice some of the parameters of the join are not indexed. ...
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110 views

SQL server deadlock graph explained

I am testing a scenario or recurrent request that ends up in executing the following store procedure simultaneously ALTER PROCEDURE [dbo].[clear_class]( @classID [int]) AS BEGIN DELETE FROM ...
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141 views

Strange IO stall values in sys.dm_io_virtual_file_stats

Values for io_stall_read_ms seems to be higher than actual run time for query. The setup: create database filestats; use filestats; create table t1_primary( a int identity ,b int ,c ...