From c105198c6e2c096142d1822b023cfa5c0366f0d8 Mon Sep 17 00:00:00 2001
From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com>
Date: Tue, 27 Jul 2021 19:24:48 +0530
Subject: [PATCH] Update README.md

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index 471dfc5..664411b 100644
--- a/README.md
+++ b/README.md
@@ -185,3 +185,13 @@ Following are some of the most commonly used constraints available in SQL −
 − Used to create and retrieve data from the database very quickly.
 
 # Data Integrity 🚧
+
+- The following categories of data integrity exist with each RDBMS −
+
+**Entity Integrity − There are no duplicate rows in a table.**
+
+**Domain Integrity − Enforces valid entries for a given column by restricting the type, the format, or the range of values.**
+
+**Referential integrity − Rows cannot be deleted, which are used by other records.**
+
+**User-Defined Integrity − Enforces some specific business rules that do not fall into entity, domain or referential integrity.**