How much space would compressing a particular index will save? How will this affect query performance? Derek Colley walks you through the effects of using data compression in SQL Server.
Schemas may be largely irrelevant to small databases, where it is no trouble to assign permissions to individual objects, but they are vital for a hard working corporate database that is being actively developed and used by several applications, with thousands of objects that must be assigned the correct permission.
Testing our applications is important, but at what level do we need to test? Steve Jones talks about unit testing today, and wonders if this is prevalent for SQL Server developers.
We asked DBAs to share their worst days. Some are funny, others tragic, many both. Here are the 5 finalists, vote for your favorite story to be THE worst day as a DBA.
If your database server is in Azure, then it makes sense to do backups into Azure too. SQL Server 2014 supports backups to the cloud, and particularly well with Managed Backup. Once your backups are safely in an Azure BLOB, then what? Mike Wood takes up the story.
Part 3 of Hugh Scott's series on automating sliding window partitions in SQL Server using PowerShell
The handling of dates in TSQL is complex - when SQL Server was Sybase, it was forced by the lack of prevailing standards in SQL to create its own ways of processing and formatting dates and times. Joe Celko looks forward to a future when it is possible to write standard SQL date-processing code with SQL Server.
Easily grant exec permission to all stored procedures to a database role in SQL 2005 or higher.
Much of the data collected by companies is being sold for profit. This data isn't treated well and while not much may change, perhaps we should be aware of how we handle data as professionals.
If you need to keep tabs on a number of servers and applications in a Windows domain then performance counters provide the bedrock of information. It is important to identify the counters you need and gather baseline data to allow you to create alerts when abnormal conditions occur.
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
By way of background, a while back I did video called “My New Favourite...
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
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I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers