What Counts for a DBA: Amnesia
Louis Davidson explains why DBAs often need a healthy dose of selective, enforced amnesia about the pain of previous failures.
How Come the Hourglass? Why Database Applications Slow Down
It is frustrating when you hit 'submit' and you get the hourglass big-time. Is it the database to blame? It could be, but there are other suspects that should be considered. Feodor Georgiev describes where, in the long route, to and fro', that a data request makes before returning, that things can get snarled up.
DR Prep
This week Steve Jones asks how you might handle DR preparation or process differently in the new year.
Row Sorting in SQL
It should be easy to model a game of poker in SQL. The problem is, however, that you need to model a permutation from a set of elements. Joe Celko argues that using a group of columns to do this isn't necessarily a violation of 1NF, since a permutation is atomic. Then comes the second problem: how would you sort such a column-base permutation in order? Sorting columns in SQL?
All Flash
Should you think about using SSD storage in your SQL Server databases? Steve Jones thinks this might be something you should consider.
Partitioning in SQL Server
Partitioning has improved with each new version of SQL Server. From partitioned views in SQL Server 7.0 through partition table parallelism in SQL Server 2008. With SQL Server 2012, we are now allowed to even create up to a 15K partition on a single table.
Querying SQL Server Agent Job History Data
Often times we are tasked with having to programmatically come with a list of durations per SQL Server Agent Job to trend the run times and order the results by date. Unfortunately it's not always easy in the way the data is stored in the system tables in the MSDB database. This tip explains how to use the system tables to get the data into the correct format for dates and job durations.
Automatically Generate Stored Procedures
This article will show you how to automatically generate insert, update, and delete procedures for tables in your database
Free Tools for the DBA: PAL Tool
The Performance Analysis of Logs tool is a general tool for collecting and analysing log data. With the addition of a template, it becomes an effective way of analysing data from performance counters for SQL Server, in order to diagnose performance problems and capture baseline information.
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
Alamat Kontak Bank BCA KCP Cijerah WA {08218154393}
WA:08218154393 Istana Regency Sudirman, Jl. Raya Cijerah Raya No.2 Ruko No 19 & 20,...
Alamat Kontak BCA KCU BANDUNG WA {08218154393}
WA:08218154393 Jl. Asia Afrika No.122-124, Paledang, Kec. Lengkong, Kota Bandung, Jawa Barat 40261
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