Tag Archives: Azure SQL DB

Easy data encryption in Azure

For those of you who use Azure today, the security discussion must have been a thing on some occasion. Explaining to managers (and possibly colleagues) that Azure is a lot more secure than a(n) (on-premise) data center, and that Azure is easier to maintain and scalable. Trust me, we’ve all been there!

But besides the physical security, there’s also the digital security. In the world of today it’s easier to find a data-breach on the news, then it is to find an item about a bank robbery. So how can you secure your data in Azure in an easy but solid way, without the hassle of changing your applications?

Encryption could be one of your tools to achieve a secure infrastructure and/or applications. But encryption is a challenge for pretty much everyone. Almost every day we hear about companies not doing it right, or not doing it at all. But luckily, Azure helps us with setting this up with just the click of a button.

Okay, okay, you got me. Maybe a few button clicks…
Continue reading Easy data encryption in Azure

Automatically convert contained database to non-contained for replication

In one of my previous posts, I described how to setup replication to an Azure SQL database. This works like a charm, and I still highly recommend using this when you want to migrate data from an on-premise server (or Azure VM) to a Azure SQL db (PaaS).

But in our environment, we use SQL Server 2016 and contained databases for some of our datasets. Unfortunately (but totally understandable), you can’t setup replication from a contained database. So how do you deal with this? For our use-case, I’ve written a script to automatically change the database from contained to non-contained. And because I’m probably not the only one who needs to do this, I’d like to share it with you.
Continue reading Automatically convert contained database to non-contained for replication

Replication: Snapshot Agent fails on date conversion

In the previous post I wrote, I explained how to setup replication from an on-premise SQL Server instance to an Azure SQL database. While doing this, I came across a very strange issue (or maybe even bug) when setting up replication.

 
The problem child
After working on reproducing the issue for a day, and trying to reduce the issue to a small-scale problem, I came to the conclusion that the problem was (probably) caused by a single primary key on a table in the database:


CREATE TABLE dbo.BuggedTable
	([Day] DATE NOT NULL,
	 SomeId VARCHAR(50) NOT NULL,
	 Amount INT NOT NULL,
	 CONSTRAINT PK_BuggedTable PRIMARY KEY CLUSTERED 
		([Day] ASC,
		SomeId ASC
		)
	)
GO

 
Creating publication & subscriber
The setup of the publication and subscriber wasn’t that difficult. As I said before, there are a few things you need to configure differently then you would do for SQL Server to SQL Server replication.

So I won’t talk you through the whole process again, but refer you to the articles instead. Continue reading Replication: Snapshot Agent fails on date conversion

Setting up replication from on-premise SQL Server to Azure SQL DB

For performance reasons we are looking for a way to split our write-operations from our read operations. A good way to do that is by duplicating the database onto another server (on-premise) or platform (Azure SQL DB). When you look at the options (Availability Groups (AG), database mirroring, clustering, replication, Azure sync groups, etc.) the easiest way to quickly duplicate a database and keep the data up-to-date at the same time is SQL Server replication.

Replication to another on-premise instance is easy. You just follow the steps in the wizard, it works out-of-the-box, and the chances of this process failing are small. With replicating data to an Azure SQL database it’s a bit more of a struggle. Just one single word took me a few HOURS of investigation and a lot of swearing… Continue reading Setting up replication from on-premise SQL Server to Azure SQL DB