Is a RID Lookup faster than a Key Lookup?
For T-SQL Tuesday #78, Aaron Bertrand takes a look at whether RID Lookups are faster than Key Lookups, with a small battery of fairly simple duration tests.
Great Developers
A great developer is worth more than an average one, but how much more? Steve Jones has a few thoughts for you to think about.
Mentors and Professional Groups
When wrestling with technical problems or ideas, it is good to discuss with, argue against, present ideas to, and listen to your colleagues. This is true of anyone working in IT, but really important for the likes of database professionals who are engaged in a very rapidly-developing engineering specialism that demands that you keep up […]
Connecting to SQL Data Warehouse
The most frustrating thing with any new system is often just working out how to connect to it. Oddly, you can’t use SSMS with SQL Data Warehouse, but it is fine with SSDT, SSIS, Power BI desktop, sqlcmd, BCP, and a range of Microsoft cloud services - there are PowerShell Cmdlets too. Rob Sheldon provides the details.
Bias, the Serial Killer of Diversity
Today we have a guest editorial from Kellyn Pot'Vin that tackles the tough topic of diversity.
Dynamically Query a 100 Million Row Table-Efficiently
This article describes methods of creating dynamic queries without the use of dynamic SQL to efficiently access large tables.
Automatically Creating UML Database Diagrams for SQL Server
SQL Server database developers seem reluctant to use diagrams when documenting their databases. It is probably because it has, in the past, been difficult to automatically draw precisely what you want, other than a vast Entity-relationship diagram. However, you can do it without buying any third-party tool, just using some existing Java-based open-source tools; and can even automate it entirely, using SQL and PowerShell. Phil Factor shows how.
Diagnosing parallelism-related latching
Diagnosing and resolving parallelism-related latching and blocking in SQL Server using DMV’s, the activity monitor, procedure execution plans, and index tuning.
Should I Stay or Go?
Today we have a guest editorial from Andy Warren that looks at the decision to leave a job. Or not.
A tour through tool improvements in SQL Server 2016
Ayo Olubeko talks through the improvements being made to SQL Server tooling in 2016.
Blogs
5 Starter Projects for Your AI and Data Engineering Portfolio
Reading tutorials is fine. Shipping something is better. If you are trying to break...
The Book of Redgate: Taking Breaks
By Steve Jones
We work hard at Redgate, though with a good work-life balance. One interesting observation...
Database AI Agents: The Read-Only Rule
By Arun Sirpal
Fourth in a series on Ai and databases. What Read-Only Advisory Actually Means A...
Forums
Displaying Money
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The Slow Growing Problems
Comments posted to this topic are about the item The Slow Growing Problems
Calculating the Harmonic Mean in Power BI
Comments posted to this topic are about the item Calculating the Harmonic Mean in...
Question of the Day
Displaying Money
I want to get the currency sign displayed with my amount stored in a money type. Does this work?
DECLARE @Amount MONEY; SET @Amount = '?1500'; SELECT CAST( @Amount AS VARCHAR(30)) AS EurosSee possible answers