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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
Oracle Data Integrator (ODI),

ODI snippets: Query to retrieve source and target columns in an interface

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and RecipesThe following query can be used to retrieve the source columns/tables and…
Uli Bethke March 17, 2010
Oracle Data Integrator (ODI),

ODI Variables and the Operator Module

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes One of the annoying things in ODI is that you can't…
Uli Bethke March 14, 2010
Oracle Data Integrator (ODI),

Under the hood of the Sunopsis Memory engine. Part 3.

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes This is the final part in our series on the HSQLDB in memory engine.…
Uli Bethke February 14, 2010
Oracle Data Integrator (ODI),

Under the hood of the Sunopsis Memory Engine. Part 2

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes In the first part of this series we've had a high level look at the ODI…
Uli Bethke February 1, 2010
Oracle Data Integrator (ODI),

Under the hood of the Sunopsis Memory Engine. Part 1.

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and RecipesOracle Data Integrator not only uses hsqldb for its demo environment. It…
Uli Bethke January 23, 2010
Oracle Data Integrator (ODI),

Using subqueries in Oracle Data Integrator (ODI) interfaces for complex data integration requirements

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and RecipesOracle Data Integrator does not have any built in functionality for subqueries…
Uli Bethke January 7, 2010