Blog Posts

Coffee and Croissant

Weekly reading #27

September is over. This was not a good month for us. We had to cancel the conferences planned for September and were not able to write as much as...

2019-10-01

22 reads

Blog Post

How do test the upstream data is good in an etl process (etl testing part 3)?

In the first two parts of this series (https://the.agilesql.club/2019/07/how-do-we-test-etl-pipelines-part-one-unit-tests/ and https://the.agilesql.club/2019/08/how-do-we-prove-our-etl-processes-are-correct-how-do-we-make-sure-upstream-changes-dont-break-our-processes-and-break-our-beautiful-data/), I talked about how to unit test your business logic and integration test your ETL infrastructure code. Having...

2019-09-30

21 reads

Blog Post

How do test the upstream data is good in an etl process (etl testing part 3)?

In the first two parts of this series (https://the.agilesql.club/2019/07/how-do-we-test-etl-pipelines-part-one-unit-tests/ and https://the.agilesql.club/2019/08/how-do-we-prove-our-etl-processes-are-correct-how-do-we-make-sure-upstream-changes-dont-break-our-processes-and-break-our-beautiful-data/), I talked about how to unit test your business logic and integration test your ETL infrastructure code. Having...

2019-09-30

3 reads

Blogs

A New Word: Anderance

By

anderance – n. the awareness that your partner perceives the relationship from a totally...

Troubleshooting SQL Server – Starting with the Error Log

By

We’ve all been there. Someone walks up and asks, “Is SQL Server having issues?”...

From OLTP to Analytics: Bridging the Gap with Modern SQL Architectures

By

In the beginning, there was OLTP – Online Transaction Processing. Fast, reliable, and ruthlessly...

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Forums

Experimental Verification of the NKTg Law on 8 Planets (NASA 2024 Data, SQL)

By NKTgLaw

Nguyen Khanh Tung Email: traiphieu.com@gmail.com ORCID: 0009-0002-9877-4137 -------------------------------------------------------------------------------- Abstract This article presents a numerical...

The Yutes

By Grant Fritchey

Comments posted to this topic are about the item The Yutes

Work out closing balance using opening balance of prior month

By Bhagat

Hello, I think I need a recursive cte query but unsure of the logic....

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Question of the Day

Tables with a SPARSE Column and Consumption

True or False:  Tables with a SPARSE column consume more space than regular columns if most values are NOT NULL.

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