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Autogenerating SSIS file import packages using Biml

Fri, 16 Feb 2018 07:00:00 UT

Tired of building tons of similar SSIS packages for importing files into your data warehouse? Learn how to autogenerate them using Biml.




An Easier Way of Pivoting Data in SQL Server

Fri, 16 Feb 2018 07:00:00 UT

There are several methods to pivot, or transpose, data in T-SQL, but most are difficult to understand and write. Phil Factor demonstrates how to take advantage of JSON support, introduced with SQL Server 2016, to create a function that makes pivoting data simple.




Right-sizing for a cloud service

Fri, 16 Feb 2018 07:00:00 UT

When it’s time to purchase new resources for one or more applications, the non-scientific approach of guesstimating the requirements can be expensive, whether for on-premises capital expenditures or cloud-based services.




Azure DWH part 26: Creating your ASDW in Cloud Shell using PowerShell

Thu, 15 Feb 2018 07:00:00 UT

In this article, we will show how to create an ASDW in PowerShell using the Cloud Shell.




How to Test SQL Server Functions and Procedures using SQL Prompt

Thu, 15 Feb 2018 07:00:00 UT

When writing functions or procedures, a common chore is to devise and implement the tests that ensure that the routine always works as expected.




When Does Index Size Change Index Choice?

Thu, 15 Feb 2018 07:00:00 UT

Erik purposely fragments indexes trying to slow down queries.




Calculating DTU's for Azure SQL Database

Wed, 14 Feb 2018 07:00:00 UT

This calculator will help you determine the number of DTUs for your existing SQL Server database(s) as well as a recommendation of the minimum performance level and service tier that you need before you migrate to Azure SQL Database.

(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.



Free eBook: SQL Server Internals: In-Memory OLTP

Wed, 14 Feb 2018 07:00:00 UT

In this free eBook, Kalen Delaney explains how Microsoft's 2016 In-memory OLTP engine works. In her book, learn how to use lock- and latch-free data structures to allow non-blocking data processing, and find out how to migrate existing tables to Hekaton.




SQL Server Machine Learning Services – Part 4: Finding Data Anomalies with Python

Wed, 14 Feb 2018 07:00:00 UT

Python is widely used to analyze data. One such use is to find anomalies or outliers. In this article, Robert Sheldon demonstrates how to create a support vector machine (SVM) to score test data so that outliers can be viewed on a scatter plot.

(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.



Restore a Database with CDC Enabled

Tue, 13 Feb 2018 07:00:00 UT

In this post, I’m going to talk about an issue that I found while restoring a backup of CDC enabled database to different SQL instance. You may receive below warning message that includes information about the cause of the warning, which can help you to resolve the issue.




Updating an expired SQL Server TDE certificate

Tue, 13 Feb 2018 07:00:00 UT

Simon Liew explains how to generate a new TDE certificate to replace the previous, and also looks at the steps needed if the database is in an Availability Group.




How to monitor the impact of patching on SQL Server performance

Tue, 13 Feb 2018 07:00:00 UT

In this article, Redgate use the Spectre/Meltdown bugs as means to demonstrate how you can use a tool like SQL Monitor to assess the impact of patching on your SQL Server estate.




A Simple Introduction to Dynamic SQL

Mon, 12 Feb 2018 07:00:00 UT

Dynamic SQL is essentially normal SQL written in such a way that you end up with a “customised” SQL script at run-time.




How to Implement Dynamic Data Masking in Azure SQL Database and SQL Server

Mon, 12 Feb 2018 07:00:00 UT

Anoop Kumar shows you the SQL Commands (T-SQL) to secure PII/PHI data using the SQL Server Dynamic Data Masking (DDM) feature and explores DDM's built in functions to mask all critical data elements. DDM restricts unauthorized users from accessing critical data with no changes in the application.




Baselining a ReadyRoll project from an existing database

Mon, 12 Feb 2018 07:00:00 UT

When creating a new ReadyRoll project, the schema of your production environment can also be imported as a baseline. Further work can be built on top of the baseline in a sandbox development environment and, when you’re happy with the changes, the project can be deployed to production.




The COUNT Function in T-SQL

Fri, 09 Feb 2018 07:00:00 UT

The COUNT function is among the most used functions in the T-SQL codes. Even though COUNT is easy to use, it should be used carefully because it could often not return the desired result. For the big tables, the counting of the rows could cause blocking as well as take some more time.




Azure Cosmos DB Consistency Levels

Fri, 09 Feb 2018 07:00:00 UT

The majority of traditional database management systems are responsible for making sure that any changes to their data are consistently reflected in the results of subsequent queries. Azure Cosmos DB extends the range of consistency options by providing support for bounded-staleness, session, and consistent prefix models.




Bringing DevOps to the database. Part 2: Continuous delivery

Fri, 09 Feb 2018 07:00:00 UT

Many application developers already use continuous integration to automatically test their code, and release management tools to automate application deployment. Database developers can join them.




Webinar: How the GDPR will impact your software delivery processes

Fri, 09 Feb 2018 07:00:00 UT

With the GDPR enforcement date looming, organisations are focusing on how data is used internally. This webinar will explain the principals of data protection, translate the GDPR jargon, and cover the steps you'll need to consider to ensure compliance in your software delivery process.




Adaptive Query Processing – Interleaved Execution

Thu, 08 Feb 2018 07:00:00 UT

Interleaved Execution allows SQL Server's query optimizer to get accurate cardinality estimates in places where it couldn't before.




Mobile Report Publisher – Dashboards Everywhere

Thu, 08 Feb 2018 07:00:00 UT

The new feature, Mobile Reports, was added to SSRS in 2016. It provides the ability to create attractive and useful dashboards that can run on devices and most browsers. Robert Cain shows you how to get started building Mobile Reports with the Mobile Report Publisher.




Introducing database automation with the SQL Toolbelt

Thu, 08 Feb 2018 07:00:00 UT

In this post, Mary Robbins explains how Absa bank improved development efficiency and minimized risk by implementing SQL Toolbelt.




Stairway to Advanced T-SQL Level 6: Creating Rows Of Data Using The UNPIVOT Operator

Wed, 07 Feb 2018 07:00:00 UT

The UNPIVOT operator does just the opposite of the PIVOT operator, which we looked at in the previous level. By using the PIVOT operator we can take multiple rows of data and create as single row as output. The UNPIVOT operator will take values from a single row and will create multiple rows. Microsoft introduced the UNPIVOT operator when they rolled out SQL Server 2005. In this level I will be showing you different examples of how to use the UNPIVOT operator.

(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.



Free eBook: SQL Server Execution Plans, Second Edition

Wed, 07 Feb 2018 07:00:00 UT

Every day, out in the various online forums devoted to SQL Server, and on Twitter, the same types of questions come up repeatedly: Why is this query running slowly? Why is SQL Server ignoring my index? Why does this query run quickly sometimes and slowly at others? My response is the same in each case: have you looked at the execution plan?




Heaps, Deletes, and Optimistic Isolation Levels

Wed, 07 Feb 2018 07:00:00 UT

Erik shows that heaps have even more drawbacks under optimistic concurrency.




How to use the SQL Prompt snippet placeholders for selecting and copying text

Wed, 07 Feb 2018 07:00:00 UT

There are four SQL Prompt snippet placeholders that are all about selection and copying of text. These placeholders are very handy if, for example, you have two blocks of code that need to be part of a snippet. One part you hold on the clipboard, and the other part is a block of snippet text, selected using the $SELECTEDTEXT$ placeholder.




SSIS Package with a Derived Column

Tue, 06 Feb 2018 07:00:00 UT

I created this article to demonstrate the use of derived columns inside a ForEachLoop Container for a client requirement for some auxiliary marketing reports. I found the Data Conversion tool useful to escape the problem of mismatched data types, which is an issue with versions of Microsoft SSIS.

(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 Replication for Temporal Tables

Tue, 06 Feb 2018 07:00:00 UT

In this tip, Ameena Lalani looks at how you can setup replication to include temporal history data.




Building a Custom Blocked Process Report

Tue, 06 Feb 2018 07:00:00 UT

Blocking in SQL Server is normal behavior, but excessive blocking can lead to many complaints and is a symptom of poor performance. SQL Server contains a vast amount of information that can help when troubleshooting performance issues like blocking, but understanding and gathering that information when you need it is a lot of work. Darko Martinovic explains his solution for a custom blocking report.

(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.



Realistic, simulated data for testing, development and prototypes

Tue, 06 Feb 2018 07:00:00 UT

This article proposes a scheme for using Redgate SQL Data Generator (SDG) as a ‘data generation and translation’ tool. We generate the data using a free copy of SQL Server Express, and then use standard bulk copy mechanisms to translate it to various formats, then distribute it out to the different data technologies and platforms that require a copy of the data. The tool becomes a mechanism to support ‘polyglot persistence’.

(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.