Back to Basics: The highs and lows of the High Water Mark

The Spoken Nerd

Databases are incredibly sophisticated pieces of software, and hence as they mature, the algorithms and logic behind what at first glance would seem to be trivial functionality are often amazing in their cleverness and cunning. In this episode we'll explore the complexity and sophistication around what would seem to be the simplest of questions: When I want to insert a row into a table, where should the database store that row? For a database to answer that question, it needs to know which table blocks are empty, which ones are full and how to manage multiple sessions all asking for which blocks to use all at the same time. Time for some insight into the High Water Mark for a database table, and its impact on your applications.

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