Undercover TV- Episode 2
The latest webcast from SQLUndercover.com. In this episode David and Adrian take a look at a few blog posts that have caught...
2018-08-29
390 reads
Blog Posts
What are my permissions?
Permissions are a common concern. One of the most frequent requests I get is I need X, Y and Z...
2018-08-29 (first published: 2018-08-16)
3,204 reads
Deleting Azure SQL DB
So you want to do a clean-up exercise in Azure and remove some databases. You go to delete a database...
2018-08-28
245 reads
Generating a Constrained Random Date–#SQLNewBlogger
Another post for me that is simple and hopefully serves as an example for people trying to get blogging as...
2018-08-28
1,229 reads
How Do Azure Accounts and Subscriptions Work Together?
Azure accounts vs. Azure subscriptions – often a topic that brings some confusion to Azure newbies. Are they the same? What’s...
2018-08-28
212 reads
Ignoring NULLs with FIRST_VALUE
Watch this week's video on YouTube
The SQL Server FIRST_VALUE function makes it easy to return the "first value in an ordered set of values."
The problem is that if that...
2018-08-28
15 reads
Ignoring NULLs with FIRST_VALUE
Watch this week's video on YouTube
The SQL Server FIRST_VALUE function makes it easy to return the "first value in an ordered set of values."
The problem is that if that...
2018-08-28
23 reads
Ignoring NULLs with FIRST_VALUE
Watch this week’s episode on YouTube.
The SQL Server FIRST_VALUE function makes it easy to return the “first value in an...
2018-08-28
8,981 reads
MAXDOP Calculator
Every time I conduct a SQL Server health check, it’s pretty common for me to find wrong configurations at instance...
2018-08-28
14,239 reads
Measuring Query Execution Time: What Is Most Accurate
Probably the single most important factor when deciding which query to tune, or actively tuning a query, is how you...
2018-08-28 (first published: 2018-08-13)
2,741 reads
Blogs
Automated SQL Server Benchmarking with HammerDB and Docker: A Complete Testing Framework
I’m excited to announce the release of a new open-source project that fully automates...
T-SQL Snapshot Backups on Availability Group Secondary Replicas
One of my favourite features of SQL Server 2022 was the T-SQL Snapshot Backups....
The Book of Redgate: Hours
By Steve Jones
I have said and written this many times: Redgate Software is the type of...
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Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers