Differences between Delete and Truncate in SQL Server
Atul Gaikwad details the differences between DELETE and TRUNCATE, including how they vary in terms of being rolled back.
Atul Gaikwad details the differences between DELETE and TRUNCATE, including how they vary in terms of being rolled back.
Steve Jones notes that some features aren't fully developed, but that's not a reason to avoid releasing them.
In this article, Greg Larson reviews why a block predicate is important when you implement row level security using SQL Server 2016.
Adding a release management tool to your software development is a sign of maturity.
The next version of SQL Server 2016 will be released on June 1, 2016, which means you can start planning those upgrades.
How do you go about transferring a disk-based workload to the respective memory-optimized design? How do you process memory-optimized tables? How important for performance are natively-compiled Stored Procedures? Artemakis Artemiou comes up with a step-by-step guide to implementing an in-memory OLTP solution .
The way in which SQL Server chooses to join your tables in a query can dramatically affect performance. In this article, Jason Brimhall explains how a hash match works and shows some performance numbers.
There are some obvious advantages to having the Query Store, but what is the performance impact that it is likely to have on a busy OLTP database server? It is early days, of course and until we get more experience we have to rely on Microsoft's estimate of a performance impact of 3-5% on average. However, this will depend on a number of factors such as usage an the way it is configured. Enrico explores some of these factors in order to give a clearer picture of what you should expect.
By Steve Jones
I was messing around with SQLCMD and I realized something I hadn’t known. I’ve...
By gbargsley
One of the first things I review when I inherit a new SQL Server...
By Arun Sirpal
It’s 07:43. Someone’s already left a message. “Something’s wrong with the DB server.” You...
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I have a SQL Server 2022 English default installation on a server. I want to detect if there are any upper case characters in rows and I have this code:
SELECT CustomerNameID,
CustomerName
FROM dbo.CustomerName
WHERE CustomerName = LOWER(CustomerName)
Here is the sample data I am testing with:
CustomerNameID CustomerName 1 John Smith 2 Sarah Johnson 3 MICHAEL WILLIAMS 4 JENNIFER BROWN 5 david jones 6 emily davis 7 Robert Miller 8 LISA WILSON 9 christopher moore 10 Amanda TaylorHow many rows are returned? See possible answers