Click here to monitor SSC
SQLServerCentral is supported by Red Gate Software Ltd.
Log in  ::  Register  ::  Not logged in

Welcome to

A Microsoft SQL Server community of 1,778,448 DBAs, developers and SQL Server users

Headlines today   January 30, 2015

Using a column name in a COUNT function

Putting a column name in a COUNT() function may not always give you what you are looking for.  Read more...
By Charles Kincaid 2015/01/30 (first published: 2013/10/15) | Source: | Category: t-sql
Rating: |  Discuss |   Briefcase | 22,057 reads

How to get ETL Horribly Wrong

ETL ( Extract, transform, load) doesn't have to be like a spell on hell. To make a success of ETL systems, you need the freedom and ability to make graceful U-turns when you detect a mistake in architecture or configuration: to fix the root problem rather than to merely tackle the symptoms. Feodor lists the eight most common root causes of failure in ETL systems, and how to fix them.  Read more...
By Additional Articles 2015/01/30 | Source: SimpleTalk | Category: etl
Rating:  Rate this |   Briefcase | 5,494 reads
Previous headlines

Database ownership and TRUSTWORTHY

Database ownership is an old topic for SQL Server pro's. Check this simple lab to learn the risks your databases can be exposed to.  Read more...
By Raul Gonzalez 2015/01/29 | Source: | Category: security
Rating: |  Discuss |   Briefcase | 2,385 reads

Using T-SQL to Perform Z-Score Column Normalization in SQL Server

In data mining, we sometimes need to perform techniques such as Z-score normalization on numeric data type columns to prevent one column from skewing or dominating the models produced by the machine learning algorithms. Dallas Snider explains how to perform this in SQL Server with T-SQL code.  Read more...
By Additional Articles 2015/01/29 | Source: | Category: normalization
Rating: (not yet rated)  Rate this |   Briefcase | 4,796 reads

Stairway to Advanced T-SQL Level 2: Using the APPLY Operator

The APPLY operator allows you to join a record set with a function, and apply the function to every qualifying row of the table (or view). The APPLY operator takes on two formats: CROSS APPLY, or OUTER APPLY. This article will explain the differences between these two formats, and show you examples of how each of these formats work.  Read more...
By Gregory Larsen 2015/01/28 | Source: | Category: stairway series
Rating: |  Discuss |   Briefcase | 7,126 reads

Free eBook: Performance Tuning with SQL Server Dynamic Management Views

Dynamic Management Views (DMVs) are a significant and valuable addition to the DBA's troubleshooting armory, laying bare previously unavailable information regarding the under-the-covers activity of your database sessions and transactions.  Read more...
By Additional Articles 2015/01/28 (first published: 2013/08/21) | Source: Red-Gate | Category: performance tuning
Rating:  Rate this |   Briefcase | 47,858 reads

Why Developers Need to Understand Execution Plans

If you can examine and understand execution plans, you can achieve better understanding of the database system and you will write better database code. Grant Fritchey shows you how.  Read more...
By Additional Articles 2015/01/28 | Source: SimpleTalk | Category: execution plan
Rating: (not yet rated)  Rate this |   Briefcase | 5,018 reads

Data Mining Part 23: Security

In this chapter we will talk about security recommendations for SQL Server Data Mining.  Read more...
By Daniel Calbimonte 2015/01/27 | Source: | Category: roles
Rating: |  Discuss |   Briefcase | 1,510 reads

Grant Fritchey Reviews Minion Reindex

Grant Fritchey reviews Midnight DBA's Minion Reindex, a highly customizable set of scripts that take on the task of rebuilding and reorganizing your indexes.   Read more...
By Grant Fritchey 2015/01/27 | Source: | Category: indexing
Rating: |  Discuss |   Briefcase | 1,156 reads

Finding Encrypted Data in a SQL Server Database

The easiest way to determine if there is encrypted data in a database is to get that information from whoever wrote the application. Aside from that, there are a few things you can look for which would suggest that you have encrypted data in a given database.  Read more...
By Additional Articles 2015/01/27 | Source: | Category: encryption
Rating: (not yet rated)  Rate this |   Briefcase | 4,655 reads
Ask SQL Server Central

From the SQLServerCentral Blogs

My First Board Meeting

Parents, you know that feeling you get after you’ve brought home that brand new baby (or in my case, babies) where...  Read more...
By Grant Fritchey 2015/01/30 | Source: SQLServerCentral Blogs | Category: blogs
Rating: (not yet rated) |  Discuss |   Briefcase | 2,762 reads
Question of the Day

Simple Selects

By lalit y 2015/01/30 | Category: t-sql
Rating: (not yet rated) |  Discuss |   Briefcase | 1,228 reads

What is the result of this SQL statement?

select $ 
Top Members (last 30 days)
# Name Score Level
30 days All-time
551 833 SSC Eights!  
515 622 SSChasing Mays  
Jeff Moden
444 36329 SSC-Dedicated  
RK Mandava
365 2337 SSCrazy  
327 2025 SSCrazy  
Latest forum posts