Since SQL Server delivered the entire range of window functions, there has been far less justification for using the non-standard ex-Sybase 'Quirky Update' tricks to perform the many permutations of running totals in SQL Server. One of these related problems is the 'Data Smear'. Do window functions make this easier, and what is performance like? Dwain Camps investigates.
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Easily synchronize live Salesforce data with SQL Server using the Salesforce SSIS DataFlow Tasks.
Aaron Bertrand recently answered a question from a user who wanted to convert all of their SQL Server computed columns to be persisted. This allows you to shift the SQL Server cost of performing the computation from query time to the time of the insert/update, at the cost of storage. In this tip, Aaron shows you how.
Join Red Gate’s Alex Yates and TeamCity for a free webinar this Thursday, October 2nd. In this practical demo, Alex will show you how to set up continuous delivery for your SQL databases using TeamCity, Red Gate’s SQL Automation Pack, and Octopus Deploy. Places are limited – register now.
It's important that you are watching your databases' health to be sure that you can make changes, as well as rollback patches when issues occur.
Rodney Landrum on finding the inspiration you need, somehow and from somewhere, to get yourself out of a tight corner.
Learn how to remove the MDW from your SQL Server environment with the 2008, 2008 R2 and 2012 versions.
Hosting a scalable application in Azure seems ideal, but what happens when things go wrong? Azure Cloud Services provide extensive diagnostics, and this feature has now been extended to Azure web sites and Azure Virtual Machines. You need to set up diagnostics on the VM, but once this is done, all your logs, traces and performance counters can be collected from many VMs in one place for easy management.
An interview with James Rowland-Jones in advance of the PASS election.
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Comments posted to this topic are about the item 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