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Big One Time Use Queries – Revisited
Just the same query that I posted months ago, but this time it is wrapped in a stored proc. I use this one often enough that it is easier to just call the stored proc. Download the...
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Restoring A Log Chain
This is a followup to my Whats more important than a backup plan article posted a couple of months ago. When you do a database restore, including log backups, it is very important to get the log chain...
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Recursive Scalar Function in T-SQL
In my Common Table Expressions presentation the topic of recursion often comes up, but for scalar functions in T-SQL, it might not be as common. This article has been written to show how a scalar...
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Executing a TSQL batch multiple times using GO
Using the GO commend in TSQL to run a batch of code multiple times is something that I commonly do in demo’s and training’s. What amazes me is how many people after the training will tell me that they...
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Using the TSQL CHOOSE Function
Here is a short video tutorial that shows how to use the CHOOSE function in T-SQL on SQL Server 2012, SQL Server 2014 or Newer. This was originally part of my free SQL query training for the 70-461...
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Using The TSQL EOMONTH Function
Here is a quick video training on how to use the T-SQL EOMONTH function on SQL Server. This was originally part of my free SQL query training for the 70-461 certification exam. The EOMONTH function...
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Week 4 – Building the Corrupt Database
The following are the steps that I went through to create a more difficult Database Corruption Challenge for Week 4. Here is how I built the database, nothing fancy, however I did add an extra...
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Updating SQL Server Statistics
Updating SQL Server statistics may not be as obvious as it may sound. Imagine this scenario. I invite you over for dinner and a game of Scrabble. After dinner, I start to do the dishes, while you set...
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Instant File Initialization (IFI)
One way to improve performance on SQL Server is with IFI or Instant File Initialization. Normally files are zeroed out on a database growth during an AUTOGROW, RESTORE, CREATE DATABASE or ALTER...
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My CheckDB Script
From time to time I get asked about checkDB, and there are many solutions out there, but I have one that I generally use that is very simple and does the job. The script below created a stored...
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Determining how much of your data file has been modified
SQL Server 2017 introduces a new column in the sys.dm_db_file_space_usage system table. The column is modified_extent_page_count, which tells how many pages have been modified in your data file since...
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Building a SQL Restore Script When Your Backup Runs
It is handy to have a SQL Restore script ready to go for every backup that you run. Here is a script that will help with that. -- available at http://databasehealth.com/shared-scripts/ -- Created by...
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