This is part of series of posts about associative grouping: Part 1 – Associative Grouping using tSQL Recursive CTE’s Part 2 – Associative Grouping using tSQL Graph In the first two parts of this series we looked at how we could use recursive CTE’s and SQL Server’s graph functionality to Read more…
A few months ago my friend Richard Swinbank posted a blog, More Get Metadata in ADF, about the limitations of using the Get Metadata activity in ADF to get information about files in a data lake. This to a twitter conversation as a bunch of other data engineers had been Read more…
I’ve worked with quite a few people new to Azure Data Factory, and one thing that seems to confuse new users is the difference between the developer sandbox where we build pipelines, and the published/deployed code. Understanding this is key to working with Git and using CI/CD pipelines to deploy Read more…
I recently looked at an Azure DevOps pipeline for a client that was timing out whenever an index change or other long running task was deployed using a DacPac. All deployments that ran within a few minutes successfully completed, but those taking longer than 10 minutes were failing. A quick Read more…
One of my clients has been adding data from multiple Salesforce instances to their data platform this week. One of their developers asked me if the Salesforce linked service could be made dynamic, as there is no place in the GUI to add parameters, or a dynamic values for the URL, user name or credentials. Here’s how we can do that.
This is part of series of posts about associative grouping: Part 1 – Associative Grouping using tSQL Recursive CTE’s Part 3 – Associative Grouping using Spark In part one of this series we looked at how we could use recursive CTE’s to find overlapping groups in two columns in a Read more…
This is part of series of posts about associative grouping: Part 2 – Associative Grouping using tSQL Graph Part 3 – Associative Grouping using Spark Recently I was asked by a friend to have a look at an interesting query problem he had been looking at. He was trying to Read more…
When using the lookup activity in Azure Data Factory V2 (ADFv2), we have the option to retrieve either a multiple rows into an array, or just the first row of the result set by ticking a box in the UI. This allows us to either use the lookup as a Read more…
What’s the Problem Stored procedures are often used to allow users to access data in tables that they do not have explicit permissions to use. The mechanism that makes this possible is ownership chaining, whereby in the context of the stored procedure, the permissions of its owner are used (often Read more…