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Headlines today   October 30, 2014

Database Design Follies: NULL vs. NOT NULL

It sounds simple enough. Either your column will always have a value or it may not. Yet somehow such a seemingly simple decision can become a never-ending debate where database schema begins to resemble superstition and designing effective tables seems more contentious than you expected it to be.  Read more...
By Edward Pollack 2014/10/30 | Source: SQLServerCentral.com | Category: null
Rating: |  Discuss |   Briefcase | 3,749 reads

Does NoSQL = NoDBA?

There’s a joke doing the rounds at SQL conferences and seminars: three DBAs walk into a NoSQL bar and leave when they can’t find a table. You may have heard it before, but it made Matt Hilbert sit down and ponder. What’s happening? Is there a division opening up between the newly fashionable NoSQL followers and DBAs? Matt enters the world of NoSQL to investigate.  Read more...
By Additional Articles 2014/10/30 | Source: SimpleTalk
Rating:  Rate this |   Briefcase | 2,909 reads
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Stairway to AlwaysOn Level 3: Infrastructure 101

In this next level of the Stairway to AlwaysOn, we will look at the components required to implement a Windows Server Failover Cluster.  Read more...
By Perry Whittle 2014/10/29 | Source: SQLServerCentral.com | Category: cluster
Rating: |  Discuss |   Briefcase | 1,697 reads

Automating Red Gate SQL Compare with MSSQL Server Agent

How to compare two databases and email the results to every one who needs to know  Read more...
By Neil Burton 2014/10/29 | Source: SQLServerCentral.com | Category: red gate
Rating: |  Discuss |   Briefcase | 603 reads

Free eBook: Troubleshooting SQL Server: A Guide for the Accidental DBA

Three SQL Server MVPs (Jonathan Kehayias, Ted Krueger and Gail Shaw) provide fascinating insight into the most common SQL Server problems, why they occur, and how they can be diagnosed using tools such as Performance Monitor, Dynamic Management Views and server-side tracing. The focus is on practical solutions for removing root causes of these problems, rather than "papering over the cracks".  Read more...
By Press Release 2014/10/29 (first published: 2013/08/07) | Source: Red-Gate | Category: troubleshooting
Rating:  Rate this |   Briefcase | 35,324 reads

Data Mining Part 19: Excel and Data Mining, Samples, Queries

This lesson explains how to Clean Data, Explore Data, get Samples of Data, Classify and query a Data Mining Model.  Read more...
By Daniel Calbimonte 2014/10/28 | Source: SQLServerCentral.com | Category: excel
Rating: |  Discuss |   Briefcase | 3,518 reads

Data Is Crazier than You Think

As a society, we have an unrealistic respect for data, especially if it has a decimal point somewhere and uses metric units. We who are in the business of data need to cultivate a renewed interest in the sceptical and rigorous science of statistics: it is too important to leave to 'Data Scientists'. If the data is wrong, or the way we analyse or report it is misleading, much of what we do is pointless.  Read more...
By Additional Articles 2014/10/28 | Source: SimpleTalk
Rating: (not yet rated)  Rate this |   Briefcase | 5,122 reads

SQL Monitor Custom Metric: Average I/O Stalls

This metric is a great general indicator of performance problems. High stall times indicate I/O problems, which can be attributed to busy physical disks or queries that return large data sets to the client.  Read more...
By Additional Articles 2014/10/28 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 4,356 reads

Dynamically change background color in SSRS reports using custom code

This article demonstrates the use of custom code and cell expressions referencing that custom code to toggle the background color of groups of rows in an SSRS report based upon value-changes in one of the fields.  Read more...
By Stan Kulp 2014/10/27 | Source: SQLServerCentral.com | Category: reporting services (ssrs)
Rating: |  Discuss |   Briefcase | 3,530 reads

Preparing Your Enterprise for Big Data

Big data applications are now fairly commonplace in large organizations. It is, however, difficult to simply ‘drop’ these applications into an existing IT infrastructure and expect to run smoothly. In addition to energy and cooling requirements for new hardware to support the new big data application, other IT areas need to prepare.  Read more...
By Additional Articles 2014/10/27 | Source: Database Journal | Category: big data
Rating: (not yet rated)  Rate this |   Briefcase | 6,246 reads
 
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From the SQLServerCentral Blogs

Add Database File on Database invloved in DB Mirroring

Database Mirroring works on transaction logs. It applies transaction logs from Principle to Mirror. But Operation like addition of file...  Read more...
By 2014/10/30 | Source: SQLServerCentral Blogs | Category: blogs
Rating: (not yet rated) |  Discuss |   Briefcase | 1,689 reads
Question of the Day

Trace Flag

By Vyas DCS 2014/10/30 | Category: sql server 2008
Rating: (not yet rated) |  Discuss |   Briefcase | 339 reads

A trace flag has been introduced in SQL Server 2008 that allows you to turn off logging of all successful backups in your SQL Server error logs. What is it?

  Read more...
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