Always Canary
One way to make deployments smoother is to use a second system, but that's a challenge for databases, as Steve Jones notes.
Placing a Mark in SQL Server's Transaction Log for Fall Back
How many times have you had a programmer come to you and say they want you (the DBA) to restore their database to sometime prior to when they accidentally corrupted it? If you are doing FULL transaction logging you can do a point in time recovery to restore the database to just prior to when the corruption occurred. But in order to do that you need to know exactly when the programmer corrupted the data, which in a lot of cases is not known down to the second.
Using Dynamic SQL in Stored Procedures
Dynamic SQL allows stored procedures to “write” or dynamically generate their SQL statements. The most common use case for dynamic SQL is stored procedures with optional parameters in the WHERE clause.
Future Proofing an IT Career
Steve discusses the ways that you can ensure your IT career continues to move forward.
How much database normalization is enough?
Normalization is important for relational databases, but sometimes too much of a good thing can be bad.
Upgrade From SQL 2012 to SQL 2016 - Problem with Certificates
You may need to drop and recreate your certificates after migrating from SQL 2012 to SQL 2016+
How to be Accountable for Handling Personal Data
The GDPR is in full effect but meeting the requirements may still be confusing for many companies. In this article, William Brewer discusses what is needed to ensure compliance, including when a Data Protection Impact Assessment is required. He also explains the Data Protection Officer role.
How to change an Azure SQL Database Collation
In this tip we look at the steps you can follow to change the collation for an Azure SQL Database.
SQL Server Migration
Some SQL migrations require keeping the server name, instance name, IP, and port number. Geoff Ruble shares some notes on his recent experience with a SQL Server migration.
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
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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