Brent Ozar • 7/22/2026

Database Animations: You’ve Heard of Page Splits. Here’s What They Really Mean.

This article by Brent Ozar uses animations to illustrate what database page splits really mean, focusing on their effects on write amplification and disk order. It explains how a single row update can cause multiple writes, how leaf pages become out of order, and how both clustered and nonclustered indexes can be affected. The article also provides historical context about hard drives and sequential access, making it a technical deep dive into database internals for IT professionals.

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#database #SQL Server #B Tree