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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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Books,

Data Warehousing Books: Design and architecture

In another post I have covered data warehousing books in the world of Oracle. We've also had a look at data warehousing and business intelligence books for project management and business analysis.…
Uli Bethke October 31, 2009
Data Warehouse,

TIME dimension script Oracle

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Uli Bethke October 30, 2009
data mining,

What is Data Mining ?

In this weeks topic I will explore what is Data Mining, the different meanings, how the term is used, etc. I will give you my interpretation of what it is and…
Uli Bethke October 28, 2009
Data Warehouse,

Data warehousing for free! Terabyte sized data warehouse and business intelligence without license costs

Greenplum This is no joke. Greenplum on 19 October announced a free single node edition of its analytical database. For those of you who haven't heard about Greenplum, they are…
Uli Bethke October 26, 2009
Business Intelligence,

Getting Started with Oracle Data Mining

This blog posting is my first in the area of Data Mining, in particular performing Data Mining using Oracle.  Over the coming months I will be making regular postings in…
Uli Bethke October 20, 2009
Oracle Data Integrator (ODI),

Online resources that every ODI developer should know about Oracle Data Integrator!

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes I have put together a link list of all the ODI resources I know…
Uli Bethke October 19, 2009