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SQL Challenges,

SQL Challenge: Tackling the Island Problem in Time Series Data

Jump into our SQL Challenge! Today, we’re exploring customer loyalty trends. Are you prepared to show off your SQL skills? About the quiz In this SQL pop quiz, we’re challenging you to demonstrate your understanding of islands in a time series data set. Whoever submits the correct and most performant query will be featured in …
Uli Bethke November 7, 2023
Flexter,

Deep dive on XML converters, XML conversion tools and XML conversion projects

Are you looking for an XML converter or XML conversion tool for enterprise use cases? Are you looking for advice and tips and tricks for an XML conversion project? If…
charlie October 4, 2023
Snowflake,

7 guardrails against common mistakes that inflate Snowflake credit usage 

Dodge costly pitfalls Snowflake implementation has pioneered dozens of innovations in the data platform space. The long list includes separation of compute and storage, physical workload separation, data sharing, data…
Uli Bethke September 13, 2023
FlowHigh,

Automatically detect bad SQL. Static and dynamic analysis of SQL code

Preventing Query Catastrophe with FlowHigh SQL Analyser Does the following sound familiar? As the wizard EsQuEl delved deep into the SQL code, he stumbled upon multiple instances where tables were…
Uli Bethke September 8, 2023
FlowHigh, FlowHigh,

From Code to Clarity: Visualizing SQL code for Documentation and Debugging

In this post we will show you how you can create a visual diagram of your SQL code. We will use the FlowHigh SQL visualiser to achieve this. FlowHigh is…
Uli Bethke May 29, 2023

Recent Articles

All Data Marketplace Flexter FlowHigh JSON Snowflake XML
Snowflake, Snowflake,

Date Dimension with Global Holiday Calendar

Overview A date dimension is an essential table in a data model that allows to analyze performance more effectively across different time periods. It should be included in every dimensional…
Uli Bethke March 21, 2022
Snowflake, Snowflake,

Canada Postal Code on Snowflake Marketplace

Overview Canada’s postal codes are alphanumeric, like Dutch, Irish, and British postcodes. Canadian postal codes are in the format A1A 1A1, where A is a letter and 1 is a…
Uli Bethke January 25, 2022
Snowflake, Snowflake,

Administrative Boundaries USA

Overview The dataset Administrative Boundaries USA contains border information as polygons about the following divisions of the fifty states, the District of Columbia, Puerto Rico, and the Island areas (American…
Uli Bethke December 20, 2021
Data Warehouse,

Data Warehouse 3.0. A Reference Architecture for the Modern Data Warehouse.

Reference data architecture for data management and analytics. An introduction. I frequently come across data architecture diagrams that are riddled with vendor names, tools, and technologies. Tools and technologies have…
Uli Bethke December 9, 2021
XML, XML,

Converting CRS XML to AWS Athena

AWS Athena does not have native support for XML. Processing XML files on AWS Athena is slow, manual, and error prone. One option is to use AWS Glue and convert…
Uli Bethke October 29, 2021
FlowHigh, FlowHigh,

SQL Parser deep dive. Use cases, features, practical examples, and tools for SQL parsing

In this blog post we will cover all aspects of SQL parsing. First we will explain what we mean by SQL parsing and look at the inner workings and mechanics…
Uli Bethke October 22, 2021