Vibe coding: type "add a contact form," hope the agent gets it right, correct it a few times, then close the window while the whole conversation vanishes unsaved. Fine for a throwaway. Hopeless at scale.Spec-driven development is the disciplined alte...
A short update for you.After many years of running the DWHPro newsletter, I am moving it to a new home at letters.dwhpro.com. Better delivery, a real archive, cleaner reading on phones, and more of my time spent writing rather than wrestling with the...
A short update.After many years of running the DWHPro newsletter, I'm moving it to a new home at letters.dwhpro.com. Better delivery, a real archive, cleaner reading on phones, and more of my time spent writing rather than wrestling with the tool.For...
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I am running a poll on LinkedIn to find out which data platform migration paths are most common right now. If your company has migrated from Teradata, Oracle, SQL Server, or any other platform, I would appreciate your vote and your experience in the...
In 1999, five people could build a production data warehouse in twelve months. Today, the same company needs 120 people and 3 years to achieve the same outcome.I started writing about how we got here. This post looks back at a time when small teams w...
SQL is dead. The future is MapReduce.Ok, we need SQL on Hadoop. Here's Hive.Hive is too slow. The future is Spark.OK, we need SQL on Spark. Here's Spark SQL.Notice a pattern?Teradata had this figured out in the 1980s. I wrote the full timeline.Read t...
If two companies migrate the same Teradata system to Snowflake, with the same data, indexes, statistics, and workloads, will they get the same bill?They will not. And the reason has less to do with warehouse sizing or SQL translation than most teams...
Your Teradata expertise is valuable. But carried into Snowflake unchanged, it can cost you. This article covers five areas where experienced Teradata professionals get tripped up: your cost model (fixed licensing vs. pay-per-second), your query optim...
I’m excited to introduce DWHPro Query Master – a lightweight, modern web application designed specifically for Teradata users who value speed, simplicity, and powerful features.Soon there will be a demo version available. In the meanwhile p...