+44 (0)20 3051 3595 | info@coeo.com | Client portal login

The Coeo Blog

Preventing Brute Force Attacks in SQL Server

SQL Server provides two different forms of authenticating the users that connect to the database server: Windows Authentication, which is the default and preferred method, and SQL Server Authentication, which needs to be explicitly enabled.

Is your transaction as lonely as you think? A cheat sheet for isolation levels in SQL Server

This post aims to give you a brief introduction into what isolation levels are and how they work within SQL Server. In short, they are a measure for controlling concurrency on the server.

Managing SQL Server Compatibility Levels using Query Store

Managing SQL Server production databases can become a nerve-wracking situation for administrators, especially when your organisation or business can have hundreds of databases that are vital to its existence and commerce.

How to avoid a rabbit hole while troubleshooting SQL Server performance

Performance analysis can be a tricky landscape at the best of times and looking at the performance of your SQL Server is no different. An initial glance at your recent high CPU usage can often spiral into a lengthy investigation, deviating far from the initial investigation.

In this blog I aim..

Please wait your turn: A basic Introduction to Latches in SQL Server

Following on from my recent blog post on locking, a level deeper in the concurrency chain leads us to latches. A lot of people will have heard of them or will have seen the related waits within SQL, for example in the sys.dm_os_wait_stats DMV, but, I would wager, not many people could give me a..

A Basic Overview of Locks in SQL Server

We have all heard of locks and can probably even name a few; shared or exclusive locks, for example. We notice them more when something goes wrong and we run into blocking or other performance problems, but what are locks and how do they work in SQL Server?

In this blog, I aim to give a basic..

Configure Kerberos for Availability Groups

Today I want to tell you about an issue we ran into while working on one of our customers and, while it’s easy to understand when explained, it might be tricky to get done when you don’t look at the whole picture.

Five Cool Things You Can Do Using Partitioning

It’s been a while since I last wrote about my favourite piece of tech, which is not the latest neither sometimes the greatest, but we’ve been together for over a decade now and I still love it. That is the SQL Server engine.

Troubleshooting - stay C.A.L.M.

So, you're supporting a server. It might be yours directly, it might belong to a customer. Doesn't matter. You've got an urgent issue - an alert, a ticket, an end-user reporting a problem - and you need to get moving. Where do you start? Everyone has a method, and if you haven't developed yours..

A Consultant's guide to saving money on your Microsoft data platform

Amidst the COVID-19 pandemic, businesses have been forced to implement short-medium term plans to protect not only their ability to transact, but also the health and wellbeing of their customers, partners and employees.  Video calls, queueing at shops (and on websites) and home deliveries have..

Back to top