In this part of my "using a calendar table" series, I talk about filling gaps and identifying gaps and islands.
Category: SQL Server
It seems a lifetime ago I wrote about creating a calendar table; now I've started a new series showing how to use the calendar table. In the first installment, I deal with business day problems.
SQL Server 2019 Cumulative Update #10 is available, with 63 enhancements. The build number is 15.0.4123.1.
SQL Server 2016 SP2 Cumulative Update #17 is available, with 20 enhancements. The build number is 13.0.5888.11.
I use a real-world example showing why you shouldn't use deprecated functionality like SQL Server Profiler.
In this tip, I talk about cases where SQL Server will interpret YYYY-MM-DD as YYYY-DD-MM, which is less than optimal.
I talk about one scenario where the system table
sys.sysprocesses almost led us down the wrong path.
An index of over a decade's worth of posts and videos involving bad habits and best practices in SQL Server.
After seeing this question pop up on forums multiple times, I wrote a quick tip about enforcing unique constraints where order doesn't matter.
SQL Server 2019 Cumulative Update #9 is available, with 140 enhancements. The build number is 15.0.4102.2.
After a question on #sqlhelp, I dug into what could be making sys.partitions slow, and how they might get the required information in a more efficient way.
A security fix for an elevation of privilege issue has been released for all supported versions of SQL Server.
I explain a recent case where sp_prepare came in handy: trying to validate a plan guide's impact.
I recently came across an interesting issue with CHECKDB snapshots, as well as a bit of information missing from the documentation.
More background on ParamParser, some recent changes, and several syntax examples.
Rob Volk asks us to share our favorite analogies that help explain database-related concepts to less technical folk.
SQL Server 2019 Cumulative Update #8 is available, with 104 enhancements. The build number is 15.0.4073.23.
I've made the GitHub repository for ParamParser public; here is some more background behind this project.
SQL Server 2016 SP2 Cumulative Update #15 is available, with 21 enhancements. The build number is 13.0.5850.14.
I've started a new project to parse default values from stored procedures and functions.
If you ever use
sys.sp_columns as shorthand for catalog views, please don't, and I'll tell you why.