Pattern Matching : More Fun When I Was a Kid
Aaron Bertrand runs some tests to challenge an assertion that CHARINDEX is always faster at pattern matching than LEFT and LIKE.
Aaron Bertrand runs some tests to challenge an assertion that CHARINDEX is always faster at pattern matching than LEFT and LIKE.
When we administer a SQL Database, we always have to work with files. This new article shows how to handle them using PowerShell.
Asking questions in an interview is important, but there can be issues. Steve Jones talks a little about how to approach this.
Greg Larson explains that SQL Server provides a couple of different ways to delete backup and restore history. If you want to remove backup and restore information for all databases based on a date you can use the sp_delete_backuphistory system stored procedure. Or you can use the system stored procedure named sp_delete_database_backuphistory if you want to remove all backup and restore history for a specific database.
What happens if we can't access the Internet? We should be prepared, at home and work. Steve Jones has a few comments.
Data types are an important part of how tables and variables work. Did you know that constants have databases too?
This week Steve Jones looks at the idea of using AI and machine learning with your data to develop amazing new insight.
The ALL, SOME and ANY predicates aren't much used in SQL Server, but they are there. You can use the Exists() predicate instead but the logic is more contorted and difficult to read at a glance. Set-oriented predicates can greatly simplify the answering of many real-life business questions, so it is worth getting familiar with them. Joe Celko explains.
Steve Jones gave a keynote, and has a little fun this week with the topic of his talk.
Although SQL Server for Linux removes the concern that adopting SQL Server forces you to also adopt the Windows platform, it could also provide a useful alternative platform, and a more obvious alternative to Oracle. There are, however, several obvious concerns as to how such a product could ever achieve parity with the existing Windows-based product. Microsoft have made an interesting move with several ramifications, as Robert Sheldon explains.
By HeyMo0sh
As someone who works in DevOps, I’m always focused on creating systems that are...
By Brian Kelley
I am guilty as charged. The quote was in reference to how people argue...
By Steve Jones
Learn how to tie a bowline knot. Practice in the dark. With one hand....
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I have a database, DNRTest, that has a number of tables and other objects in it. The other day, I was trying to mock up a test and ran this code on the same server:
-- run yesterday CREATE DATABASE DNRTest2 GO USE DNRTest2 GO CREATE TABLE NewTable (id INT) GOToday, I realize that I need a copy of DNRTest for another mockup, and I run this:
-- run today USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO RESTORE DATABASE DNRTest2 FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens? See possible answers