---
title: "Null — Database Glossary | Xata"
description: "A special marker indicating the absence of a value. Not equal to zero, empty string, or false. NULL comparisons require IS NULL / IS NOT NULL operators ..."
source: "https://xata.io/glossary/null"
---

# Null

Core Database

A special marker indicating the absence of a value. Not equal to zero, empty string, or false. NULL comparisons require IS NULL / IS NOT NULL operators because NULL = NULL evaluates to NULL (unknown), not true.

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