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Filegroup restoring and database consistency

Tue, 27 Jun 2017 06:00:00 UT

In this article, we'll explore a less used feature of SQL Server: filegroup restoring, feature that has an interesting consequence because database can become inconsistent without any warning and standard checks don't reveal any issue.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.



How to Read the Transaction Log File

Tue, 27 Jun 2017 06:00:00 UT

Have you ever wanted to be able to see the actual transactions that are contained in the transaction log file? Greg Larsen shows you how to browse the transaction log using an undocumented function.




Workplace Encounters: Using Volume Mount Points in SQL FCIs

Mon, 26 Jun 2017 06:00:00 UT

How we overcame the A to Z Windows Drive-Letter limitation using Volume Mount Points




A DLM Approach to Database Testing

Mon, 26 Jun 2017 06:00:00 UT

Database Lifecycle Management aims to make the development and modification of databases more predictable. Bugs are the source of more unpredictability than anything else, purely because it is so difficult to guess how long it will take to fix them. Good testing at all stages may take some time and effort, but it greatly reduces likelihood of the wildcard factor of the bug that is first detected during the deployment process; or worse, that gets into the production release.




Microsoft SQL Server Utilities and Tools

Fri, 23 Jun 2017 06:00:00 UT

Useful free and paid utilities and tools for Microsoft SQL Server - complete list of 213 Utilities




Getting Started with Azure SQL Data Warehouse - Part 5

Fri, 23 Jun 2017 06:00:00 UT

In part 5 of this series covering Azure SQL Data Warehouse, Arshad Ali looks at performance optimization.




Where's the Ops in DevOps? Part 1

Fri, 23 Jun 2017 06:00:00 UT

In the first of a three-part series, guest bloggers from DevOpsGuys look at the real role of Ops in DevOps. Where it changes, how it changes, and why Ops has an important part to play in the brave new world of DevOps.




How to Decipher sysschedules

Thu, 22 Jun 2017 06:00:00 UT

Take the mystery out of sysschedules and interpret the data into a plain text format.




Statistics in SQL: Simple Linear Regressions

Thu, 22 Jun 2017 06:00:00 UT

Although linear regressions can get complicated, most jobs involving the plotting of a trendline are easy. Simple Linear Regression is handy for the SQL Programmer in making a prediction of a linear trend and giving a figure for the level probability for the prediction, and what is more, they are easy to do with the aggregation that is built into SQL.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.



SQL Server Row Count for all Tables in a Database

Thu, 22 Jun 2017 06:00:00 UT

Dattatrey Sindol explains the different ways in which you can get the row counts from all the tables in a SQL Server database.




SQL Azure Reporting Automation

Wed, 21 Jun 2017 06:00:00 UT

This article will talk about preparing a runbook in Azure to schedule the report of space usage of databases in Azure environment




Free eBook: SQL Server Backup and Restore

Wed, 21 Jun 2017 06:00:00 UT

In this free eBook Shawn McGehee offers advice on query tuning, cutting stored procedures, and system process design and implementation for high availability. Discover how to perform backup and restore operations using SQL Server Management Studio (SSMS), basic T-SQL scripts and Redgate's SQL Backup tool.




Six reasons to version control your database

Wed, 21 Jun 2017 06:00:00 UT

For most application developers, it's unthinkable to work without version control. What about the database? What's stopping you version controlling yours?




Dealing with High Concurrency with Table Hints

Tue, 20 Jun 2017 06:00:00 UT

Systems with a large number of requests on a critical database table are prone to blocking and slowness. We take a look at getting things done using T-SQL table hints.




Properly Persisted Computed Columns

Tue, 20 Jun 2017 06:00:00 UT

Paul White walks through a new trace flag in SQL Server 2016 designed to yield better execution plans (and performance) for queries involving computed columns.




Statistics in SQL: Kendall’s Tau rank correlation

Tue, 20 Jun 2017 06:00:00 UT

Statistical calculations in SQL are often perfectly easy to do. SQL was designed to be a natural fit for calculating correlation, regression and variance on large quantities of data. It just isn't always immediately obvious how. In the second of a series of articles, Phil factor shows how calculating a non-parametric correlation via Kendall's Tau or Spearman's Rho can be stress-free.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.



Scoring Outliers with R

Mon, 19 Jun 2017 06:00:00 UT

What is normal? More to the point, what is abnormal? We will look at using R to score outliers in a typical monitoring dataset.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.



Help for DBAs Who Support SSIS…

Mon, 19 Jun 2017 06:00:00 UT

SSIS Catalog Compare helps DBAs work with their SSIS project configurations and catalogs, deploying changes from environment to environment.




Extending DevOps practices to SQL Server databases - Story Tracking

Mon, 19 Jun 2017 06:00:00 UT

Join Microsoft Data Platform MVP Grant Fritchey for the next Database DevOps demo webinar. He’ll be plugging Redgate tools into Atlassian's Jira, Bitbucket, and Bamboo, as well as showing how you can integrate database changes, code, and issues.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.



The Invisible DBA

Fri, 16 Jun 2017 06:00:00 UT

Do you want super powers? Learn how to be an invisible DBA!




Use T-SQL to Find Folders Using the Most Disk Space

Fri, 16 Jun 2017 06:00:00 UT

Your SQL Server drives are running out of disk space and you want a way to quickly tell which sub-directories are taking the most space - here's how to do it with T-SQL.




How to implement a SQL formatting standard using SQL Prompt v8

Fri, 16 Jun 2017 06:00:00 UT

With ten programmers working on the same project, how do you agree on a standard style for formatting SQL code, and then implement it consistently? One way is through draconian rules, meeting after meeting, and the occasional sacrifice of a programmer to put the fear in those who remain. Another way is using SQL Prompt, Louis Davidson shows how.




Setting up R in SQL 2016 – Avoiding Pitfalls

Thu, 15 Jun 2017 06:00:00 UT

Setting up R in SQL 2016 proved to be trickier than expected, but here is how to avoid the frustrations.




Questions About SQL Server Collations You Were Too Shy to Ask

Thu, 15 Jun 2017 06:00:00 UT

Of course we all like our colleagues to think that we know everything there is to know about SQL Server Collations. However, the truth is that it is a rather complicated topic to fully understand and the cost of getting collation wrong can be great. If only one could ask certain questions on forums or at conferences without blushing. Help is at hand, because Robert Sheldon once again makes the complicated seem simple by answering those questions that you were too shy to ask.




Data classification: understanding and protecting your data

Thu, 15 Jun 2017 06:00:00 UT

What is data classification? Why go to the effort of classifying your data? Jonny Roberts explains.




Stairway to U-SQL Level 15: U-SQL Global Scalar Functions With C#

Wed, 14 Jun 2017 06:00:00 UT

In this article, see how to created shared functions using C# assemblies in U-SQL.




Free eBook: Defensive Database Programming

Wed, 14 Jun 2017 06:00:00 UT

Resilient T-SQL code is code that is designed to last, and to be safely reused by others. The goal of defensive database programming, the goal of this book, is to help you to produce resilient T-SQL code that robustly and gracefully handles cases of unintended use, and is resilient to common changes to the database environment.




Setting Variables in Calling T-SQL Code While Using sp_executesql

Wed, 14 Jun 2017 06:00:00 UT

In this tip, Greg Larsen shows you how to set variables in your calling T-SQL code when using sp_execute sql.




What is normal? Finding outliers with R

Tue, 13 Jun 2017 06:00:00 UT

How do you currently set alerting thresholds? What is normal? And more importantly, what is truly abnormal? We will explore these questions.




UNION ALL Optimization

Tue, 13 Jun 2017 06:00:00 UT

Paul White digs into row goals as he explains some interesting and inconsistent behavior with UNION ALL queries in SQL Server.

(image) How to fix SQL Server disk I/O bottlenecks (without a hammer)
In this new article, Simple-Talk editor Tony Davis explains step-by-step how to find and fix the root causes of disk I/O bottlenecks, including gathering data, avoiding knee-jerk fixes, and how monitoring tools can help. Read now.