Top Articles

Data Lineage,

SQL Visualisation Guide – Query Diagrams, Lineage & ERD

Have you ever inherited the SQL codebase from someone else where it is in a “bit of a mess”? 😁 Sound familiar? Most data engineers and SQL developers have been there including myself—staring at a spaghetti-like web of queries, trying to untangle a chaotic SQL codebase. It’s a common nightmare. Traditionally, you had to fight …
Uli Bethke November 3, 2024
SQL,

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…
Uli Bethke November 7, 2023
XML,

XML Converters & Conversion – Ultimate Guide (2024)

“Urgent XML Conversion Project – Need by End of Week”. “Just Convert this XML to SQL Tables. Should be Simple!” Sound familiar?  From my experience, XML conversion projects follow the…
Maciek 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
SQL,

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

Recent Articles

All JSON Snowflake XML
Snowflake, Data Marketplace,

Planet Earth Open Map Data

The data is based on OpenStreetMap and enriched with third party sources. It is organised across eleven themes. Each theme is organised by classes and subclasses. You can drill down…
Uli Bethke May 15, 2023
Snowflake, Data Marketplace,

UK Open Map Data

UK administrative boundaries and road network The data is organised across two themes. Administrative: This data set contains the polygons for UK administrative boundaries at different levels. It includes the…
Uli Bethke May 8, 2023
Snowflake, Data Marketplace,

Airport Codes

Overview Sonra has published a data set for airport codes on the Snowflake marketplace. Airport codes are used to distinguish airports around the world to ensure that there is no…
Uli Bethke December 22, 2022
Snowflake, FlowHigh,

Improving performance and reducing costs with Materialised Views on Snowflake

What are Materialised Views? Materialised Views are similar to Views. A View is a logical or virtual table representing the result of a query. Each time the View is queried…
Uli Bethke November 18, 2022
XML, XML,

Converting Duck Creek XML to a relational database

Duck Creek makes extensive use of XML. All Policy data is locked away in XML just to give one example. XML is a great format for exchanging data and for…
Maciek October 18, 2022
Snowflake, FlowHigh,

How to do full text search with Snowflake, Inverted Indexes and Snowpark

Inverted Index An Inverted Index is a data structure used to support full text search over a set of documents. An inverted index is very similar to an index at…
Uli Bethke September 19, 2022