(Pinal Dave) You can find the difference between UNION and UNION ALL in the following posts Union vs. Union All – Which is better for performance?
Tag: sql server
General facts of SQL SERVER – part 4
General facts of SQL SERVER – Part 4 Common language runtime (CLR) The Common Language Runtime (CLR) is an utmost important module of the .NET framework. It offers a podium for the systems to execute. The Common Language Runtime (CLR) offers services like error or bug controlling, safety, correcting the code plus version sustenance to the systems. A number of...
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Power BI Semantic Model Supports Many-to-Many Relationships
(Paul Turley) Is it possible to duplicate the same many-to-many relationship behavior in VertiPaq that we have in SSAS multidimensional?
Microsoft SQL Server 2014 In-Memory OLTP: How fast is it?
(Percy Reyes) In-Memory OLTP is a new feature of Microsoft SQL Server 2014 that was born in response to business and hardware trends. But how fast is it? How we can use it to optimize OLTP transactions? Why it is faster than transactions on disk based tables?
Visual Studio Toolbox: SQL Server Data Tools
(Robert Green) In this episode, I am joined by Scott Klein, host of the Data Exposed show. Scott shows us the SQL Server Data Tools in Visual Studio and demonstrates some scenarios when you can use those rather than leaving Visual Studio and using external tools such as SQL Server Management Studio.
Parameterizing Connections and Values at Runtime Using SSIS Environment Variables
(Melissa Coates) This post discusses how to parameterize connection strings and values at runtime using SSIS environment variables. Although it may seem like a lot of steps, it’s a one-time setup per environment and makes your SSIS projects very portable and allows for easier manageability of dynami
Google Spreadsheet – Finding Last Value from Column
(Pinal Dave) I have previously written about how to find the top and bottom value of column in SQL Server but recently I got a very interesting question based on the same blog post. The question was how to find the last value from Column in Google Spreadsheet. I find it very interesting and attempte
[SQL Snacks Video] Performance Tuning 103 – T-Logs and VLFs
(Ayman El-Ghazali) Finally the arrival of Part 3 of my SQL Snack Pack on Performance Tuning! The series is dedicated to help beginners understand how to start performance tuning with SQL Server.
Integrating SQL Server Data Using Union, Case and Cast in T-SQL
(Dallas Snider) Sometimes we need to integrate data from multiple tables into a single table. While SQL Server Integration Services (SSIS) can handle this task, depending on the situation this integration task could be handled with T-SQL.
Bidirectional Relationships And Many-To-Many In The Power BI Designer
(Chris Webb) There’s a lot of cool stuff in the new Power BI Designer desktop app, but for me the most important new bit of functionality is one that’s not immediately obvious: relationships between tables in the data model have had a significant upgrade. Let me illustrate…