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• Data Mining Introduction

  Many people that work for years with SQL Server never use the Data Mining. This article has the objective to introduce them to this magic and exciting new world. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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• TSQL Challenge 47 - Read the modification history and identify the fir

  A table contains the list of modifications made to each card. Your job is to write a query that shows the first number, current number (most recent) and the number of changes made. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Row Oriented Security Using Triggers

  Handling security in an application can be a bit cumbersome. New author R Glen Cooper brings us a database design technique from the real world that can help you. Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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• Starting this week: Dublin, Maidenhead, and London

  - by KKline

  This might be most most overcommitted four-week period of time ever in my life. I’m tired just thinking about it! Not only am I traveling internationally and speaking over the next few weeks, I’m also helping on two book projects, learning some new applications from Quest Software, and helping on a small Transact-SQL refactoring project. Swag on hand? I’ve got a special printing of 500 video training DVDs for this trip: SQL Server Training on DMVs Performance Monitor and Wait Events Plus, I’ll have...(read more)

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• Some tips for working with big data models

  The main goal of this article is to present some tips to help professionals that need to work with complex, big, and hard to understand database models that anyone may came across some day. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• 7 Preventable Backup Errors

  The loss of a company's data is often enough to put the company out of business; and yet backup errors are generally avoidable with the application of common sense rather than deep technical knowledge. Grant digs into memories of his long experience of giving forum advice, to come up with the most easily preventable backup errors. Get Smart with SQL Backup Pro Powerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school Discover why.

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• SSMS Built in Reports for Server and Database Monitoring

  - by GrumpyOldDBA

  This is a long post which I hope will format correctly – I’ve placed a pdf version for download here  http://www.grumpyolddba.co.uk/sql2008/ssmsreports_grumpyolddba.pdf I sometimes discover that the built in reports for SQL Server within SSMS are an unknown, sometimes this is because not all the right components were installed during the server build, other times is because generally there’s never been great reporting for the DBA from the SQL Team so no-one expects to find anything useful for...(read more)

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• Profiling Database Activity in the Entity Framework

  It’s important to profile your database queries to see what happens in response to Entity Framework queries and other data access activities, says Julie Lerman, who gives you the details on several profiling options to improve you coding. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• A Temporary Disagreement

  Last month, Phil Factor caused a furore amongst some MVPs with an article that dared to suggest that for reasonably small-scale strategic uses, and with a bit of due care and testing, table variables are a "good thing". Not everyone shared his opinion. The Future of SQL Server MonitoringMonitor wherever, whenever with Red Gate's SQL Monitor. See it live in action now.

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• Optimising Server-Side Paging - Part II

  The second part of this series compares four methods of obtaining the total number of rows in a paged data set. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Updatable columnstore index, sp_spaceused and sys.partitions

  - by Michael Zilberstein

  Columnstore index in SQL Server 2014 contains 2 new important features: it can be clustered and it is updateable. So I decided to play with both. As a “control group” I’ve taken my old columnstore index demo from one of the ISUG (Israeli SQL Server Usergroup) sessions. The script itself isn’t important – it creates partition function with 7 partitions (actually 8 but one remains empty), table on it and populates the table with 63 million rows – 9 million in each partition. So I used the same script...(read more)

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• New Whitepaper from SQLBI: Vertipaq vs ColumnStore

  - by AlbertoFerrari

  At the end of June 2012, I was in Amsterdam to present some sessions at Teched Europe 2012 and, while preparing the material for the demos (yes, the best demos are the ones I prepare at the last minute), I decided to make a comparison between the two implementations of xVelocity of SQL 2012, one is the VertiPaq engine in SSAS Tabular and the other one is the ColumnStore index in SQL Server. After some trials, I decided that ColumnStore was a clear loser, because I was not able to see a real improvement...(read more)

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• PAL–Performance Analysis of Logs

  - by GavinPayneUK

  I was doing some research earlier this week on SQL Server related troubleshooting tools and was surprised I’d forgotten about Microsoft’s PAL tool – Performance Analysis of Logs. PAL is a free PowerShell UI based tool from Microsoft that creates a perfmon template which can then be used to capture counters most relevant to a high-level performance review PAL will them give for specific Microsoft server deployments, SQL Server being one of them.  Everyone knows what perfmon does, probably too...(read more)

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• Data Everywhere - Step 3 in the Stairway to Reporting Services

  In this article, MVP Jessica Moss talks about data sources and how to connect them to your report. Learn how to add the reusable data sets and data sources for your reporting projects. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• [Speaking] Presenting at AITP Region 18 IT Con

  - by AllenMWhite

  The IT Con event this Saturday, June 18, is an event similar to SQL Saturday. It has three tracks, an IT Professional track, a Development track and a Career Development track. I'll be presenting two sessions in the IT Professional track. Gather SQL Server Performance Data with PowerShell We all know how important it is to keep a baseline of performance metrics that allow us to know when something is wrong and help us to track it down and fix the problem. We don't always know how to do this easily...(read more)

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• What does this Express Edition look like, anyhow?

  - by TiborKaraszi

  Chances are that you rarely get to see the Express Edition of SQL Server if you mainly work with servers. This blog post is inspired from a forum discussion where some functionality is missing in SQL Server Management Studio (SSMS) and I suspected that the tools were installed as a Basic installation instead of Complete installation. So how do I check that? Difficult if I don’t have such an install to look at. I’m training this week and have a few spare machines to play with so I went ahead and installed...(read more)

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• ShowPlan Operator of the Week - Merge Join

  Did you ever wonder how and why your indexes affect the performances of joins? Once you've read Fabiano Amorim's unforgettable explanation, you'll learn to love the MERGE operator, and plan your indexes so as to allow the Query Optimiser to use it. Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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• Disk Is Cheap! ORLY?

  People often conclude that the cheap price of storage is a license to use as much as possible, but there is a cost. Solomon Rutzky talks about the issues you may face if you are not careful with your storage decisions. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Read Committed Snapshot Isolation– Two Considerations

  - by GavinPayneUK

    The Read Committed Snapshot database option in SQL Server, known perhaps more accurately as Read Committed Snapshot Isolation or RCSI, can be enabled to help readers from blocking writers and writers from blocking readers.  However, enabling it can cause two issues with the tempdb database which are often overlooked. One can slow down queries, the other can cause queries to fail . Overview of RCSI Enabling the option changes the behaviour of the default SQL Server isolation level, read...(read more)

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• Community Event Leader Tools

  - by GavinPayneUK

  As many of you know, I run a small SQL Server community event here in the UK, SQL Server in the Evening, with the help of Coeo colleague and MVP Justin Langford.  There’s been half a dozen evening events in the last 16 months and recently it got to the point where I needed to start putting proper tools in place to communicate with my event’s followers.  As well as telling them when the next event is it’d also be nice to share some of the Chapter Leader mails I get from Pass etc.  ...(read more)

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• DBA Reporting Presentation - Cambridge UG

  - by NeilHambly

  I'm now able to Report (sorry for the pun!) that my presentation on DBA Reporting I gave @ the User group on 25th November @ Red-Gate Offices in Cambridge So I have attached the Presentation in PDF format for you all to replay and view if you weren't able to attend. Here a few links you may also want to check out on some of those products we discussed Various ones like SQL NEXUS / DAIG / PAL / Internals Viewer http://www.codeplex.com/ SQL Server 2005 Performance Dashboard Reports http://www...(read more)

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• Updated Master Data Services Documentation and Resources

  - by mattande

  (This post was contributed by Reagan Templin, Lead Technical Writer for the MDS Team) With the release of SQL Server 2008 R2, it’s a great time to check out the updated documentation and resources for the release, and for SQL Server 2008 R2 Master Data Services ("MDS") in particular. As you saw in the last post ( New White Papers Available ), there are some great white papers available on MSDN to get you going with MDS. Below you’ll find more information about other updated and newly published content....(read more)

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• SSIS Basics: Setting Up Your Initial Package

  Up until now, it has been a curiously frustrating search to find out the basics of SSIS, fast, in order to get up and running quickly. No longer, as Annette Allen comes up with a simple introduction for the rest of us. What are your servers really trying to tell you? Find out with new SQL Monitor 3.0, an easy-to-use tool built for no-nonsense database professionals.For effortless insights into SQL Server, download a free trial today.

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• Backup Compression - time for an overhaul

  - by jchang

  Database backup compression is incredibly useful and valuable. This became popular with then Imceda (later Quest and now Dell) LiteSpeed. SQL Server version 2008 added backup compression for Enterprise Edition only. The SQL Server EE native backup feature only allows a single compression algorithm, one that elects for CPU efficiency over the degree of compression achieved. In the long ago past, this strategy was essential. But today the benefits are irrelevant while the lower compression is becoming...(read more)

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• Are my actual worker threads exceeding the sp_configure 'max worker threads' value?

  Tom Stringer (@SQLife) was working on some HADR testing for a customer to simulate many availability groups and introduce significant load into the system to measure overhead and such. In his quest to do that he was seeing behavior that he couldn’t really explain and so worked with him to uncover what was happening under the covers. Understand Locking, Blocking & Row VersioningRead Kalen Delaney's eBook to understand SQL Server concurrency, and use SQL Monitor to pinpoint excessive blocking and deadlocking. Download free resources.

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