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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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analytic functions,

Time series in OBIEE. Analytic functions and range window as an alternative to OBIEE AGO function.

All intellectual credit for this post goes to my colleague Maciek Kocon. I am simply documenting this. We had some performance issues recently using the OBIEE AGO function for time…
Uli Bethke June 1, 2011
Oracle Data Integrator (ODI),

ODI snippets: Upgrade ODI 10g to ODI 11g – Cloning repositories

If you host your ODI repositories on an Oracle 11g database and need to clone the schemas during the upgrade process you must not use the export/import utility to do…
Uli Bethke June 1, 2011
Oracle Warehouse Builder,

OWB 11g R2 book released: Oracle Warehouse Builder 11g R2: Getting Started 2011

This book is the update to Oracle Warehouse Builder 11g: Getting Started. I have had a review of this earlier version of the book a while ago on the blog. One of the…
Uli Bethke May 25, 2011
Business Intelligence,

Oracle Data Miner Comes of Age

I have an article in the June editions of the Oracle Scene magazine, titled Oracle Data Miner Comes of Age. This article focuses on the new Oracle Data Miner 11g…
Uli Bethke May 23, 2011
Oracle Data Integrator (ODI),

Oracle Data Integrator (ODI) 11g: limitation of load plans

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes When I first heard about the new load plan feature in…
Uli Bethke May 18, 2011
Best Practice,

Guest Post: Can Database Developers do Data Mining ?

I was recently invited by Sandro Saitta, who runs the Data Mining Research blog (http://www.dataminingblog.com/), to write a guest blog post for him. The topic for this guest post was…
Uli Bethke May 11, 2011