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Day: August 16, 2023

Stream Processing with Flink and Kafka

Published 2023-08-16 by Kevin Feasel

Konstantin Knauf starts a new series:

There was a huge amount of buzz about Apache Flink® at this year’s Kafka Summit London. From an action-packed keynote to standing-room only breakout sessions, it’s clear that the Apache Kafka® community is hungry to learn more about Flink and how the stream processing framework fits into the modern data streaming stack.

That’s why we’re excited to introduce our new “Inside Flink” blog series that takes a deeper look at why developers and organizations everywhere are shifting their stream processing technologies to Flink. Our first blog post explains what Flink is and how it can enhance your streaming use cases running on Kafka. Future topics will include common Flink use cases, an inside look at Flink SQL, and much more.

Click through for the first post in the series, which covers what Flink is and how the two products can interoperate.

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Solving Systems of Equations in R

Published 2023-08-16 by Kevin Feasel

Steven Sanderson needs a solution:

In mathematical modeling and data analysis, it is often necessary to solve systems of equations to find the values of unknown variables. R provides the solve() function, which is a powerful tool for solving systems of linear equations. In this blog post, we will explore the purpose of solving systems of equations, explain the syntax of the solve() function, and provide three examples of increasing complexity to demonstrate its usage.

This post got me thinking about linear programming, which is a different topic but still pretty easy to do in R.

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Creating a Calendar View in Power BI

Published 2023-08-16 by Kevin Feasel

Martin Schoombee needs a calendar:

It’s pretty sad that we don’t have a built-in calendar visualization in Power BI, and the custom visuals in the marketplace don’t have everything I need/want for my own internal reporting…so I decided to experiment a little and see how close I could get with the standard graphs that are available.

Read on to see how close Martin could get. It’s actually more calendar-looking than I would have expected, though also frustratingly limited.

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ANSI_PADDING and Its Relevance

Published 2023-08-16 by Kevin Feasel

Vitaly Bruk won’t be late to meetings anymore:

Today, I have late for the team meeting … 🙁

When I joined a Teams meeting, the team discussed ANSI_PADDING. One of the teammates fires at me with the teacher’s voice: “What are we talking about? What is ANSI_PADDING? Shoot!”.

That was a joke, but … just in case, let’s see what is this.

Read on to learn what the ANSI_PADDING attribute is and why it’s relevant.

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Don’t Start Stored Procedure Names with sp_

Published 2023-08-16 by Kevin Feasel

Chad Callihan provides solid advice:

Everyone has an opinion on naming stored procedures. One opinion that can be agreed upon is that starting a stored procedure with “sp_” is not the way to go. Using “sp_” can only do harm. Let’s take a look at why that is.

Read on for Chad’s reasoning.

I don’t like prefixes at all for stored procedures (or tables). It’s a common misunderstanding of Hungarian notation, as you don’t provide any new and relevant information in the object name: of course it’s a stored procedure; I’m using “EXEC” to execute it, so what else could it be?

The exception to a very good rule is something which you intend to put in the master database and execute from any database context. The best example of this is sp_whoisactive.

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