Aggregate Function Product()
The TSQL aggregate function SUM() gives a number based on the addition of the values of multiple rows to each other. Do the same thing but with multiplication instead of addition.
Insider Security Threats
The biggest security threat always seems to come from insiders and today Steve Jones talks about the need to monitor your environment.
SQL Server 2012: Creative Thinking for a Creative New Licensing Model
It seems inevitable that many customers will end up paying more to get the same features they have today, under the new SQL Server licencing model, unless they respond to Microsoft's creativity with some of their own.
TSQL Challenge 75 - Find the Episode and Sequence based on interval
The challenge is to find the Episode and Sequence based on interval.
Great SQL Server Debates: Buffer Cache Hit Ratio
One of the more popular counters used by DBAs to monitor SQL Server performance, the Buffer Cache Hit Ratio, is useless as a predictor of imminent performance problems. Worse, it can be misleading. Jonathan Kehayias demonstrates this convincingly with some simple tests.
Do you know your getdate()?
This article takes a closer look at SQL Server getdate() and sysdatetime() functions.
Stairway to SQL Server Replication - Level 7: Merge Replication – Subscription
This level of the Stairway will cover the details of SQL Server transactional and merge replication, from understanding the basic terminology and methodology of setting up replication, to describing how it works and how the basic replication processes can be monitored.
A Computed Column Defined with a User-Defined Function Might Impact Query Performance
A benefit of using computed columns is that they can save developers from having to write calculation logic at the application layer; at the table level, the application can simply reference the computed column. In addition, performance can be improved by persisting a computed column and building an index on it.
Old Dog, New Tricks
Steve Jones learns a new trick working with T-SQL, and is surprised how easy it is. He recommends you work on updating your skills over time as well.
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...
Forums
BIT_COUNT II
Comments posted to this topic are about the item BIT_COUNT II
I Can't Make You Learn
Comments posted to this topic are about the item I Can't Make You Learn
Why Your SQL Permissions Disappeared
Comments posted to this topic are about the item Why Your SQL Permissions Disappeared
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