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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

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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
BI Magazines,

Business Intelligence, Data Warehousing, and Database Magazines

I did some research around business intelligence and data warehousing magazines. If you think I have missed one let me know. Magazines – print version Business Intelligence Journal (TDWI) "The…
Uli Bethke January 14, 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
Books,

Oracle data warehousing and business intelligence books

Today I continue in my series on Data Warehousing books. In a previous post we have had a look at data warehouse design and architecture books. We have also had a…
Uli Bethke December 7, 2009
Business Intelligence,

Why Has Data Mining Struggled So Much?

Bill Inmon has recently posted an article on "Why has Data Mining struggled so much?" The article discusses 7 diferent reasons why data mining has struggled, as it has been…
Uli Bethke November 20, 2009
Oracle Data Integrator (ODI),

ODI Snippets: OdiSqlUnload with header

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes OdiSqlUnload is a handy tool to quickly dump the content of…
Uli Bethke November 19, 2009