Triggers: Threat or Menace?
Triggers are generally over-used in SQL Server. They are only rarely necessary, can cause performance issues, and are tricky to maintain If you use them, it is best to keep them simple, and have only one operation per trigger. Joe Celko describes a feature of SQL that 'gets complicated fast'.
Technology Guilt
Technology has made many advances in the world, but it has also eliminated many jobs. This Friday's poll asks how you feel about that as a technology worker.
Memory Limits in SQL Server 2016 SP1
Aaron Bertrand explains a few details about the memory limits in SQL Server 2016 Service Pack 1 that make this upgrade even more compelling.
Column Store vs Row Store Indexes
How does a column store index compare to a (traditional)row store index with regards to performance
How to read the SQL Server Database Transaction Log
Manvendra Singh takes a look at a SQL Server function that you can use to read the transaction log to see what entries are made for database transactions.
Internal Query Processor Error with ColumnStore Indexes
SQL Server 2016 does not allow computed columns to co exist with columnstore indexes and clustered btree indexes on same table.
Getting Started with R Services in SQL Server 2016 – Part 1
SQL Server 2016 brings native support to advanced analytics in the database itself, using R Services. In this article, Arshad Ali explains what R is, what the on-premise advanced analytics options from Microsoft are, and shows how to get started using R Services with SQL Server 2016.
Blogs
KDA: Echoes of Deception - Case 6
By Zikato
A cryptic message, a book cipher hidden in art provenance records, and a trail...
Capturing My Own Metrics: #SQLNewBlogger
By Steve Jones
A customer was trying to compare two tables and capture a state as a...
Red Flags in Your Query (T-SQL Tuesday #200)
By Zikato
When I'm looking at a query, I bet it's bad if I see... a...
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BIT_COUNT II
Comments posted to this topic are about the item BIT_COUNT II
Question of the Day
BIT_COUNT II
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37 4 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers