From 546e0af1502ae68d650e6c8bc9c76dd7671a8901 Mon Sep 17 00:00:00 2001
From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com>
Date: Thu, 29 Jul 2021 08:21:46 +0530
Subject: [PATCH] Update README.md

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 75a476a..0eb4189 100644
--- a/README.md
+++ b/README.md
@@ -688,4 +688,8 @@ There are different types of joins available in SQL −
       CREATE INDEX index_name
       ON table_name (column_name);
       
-### 
+### Unique Indexes
+- Unique indexes are used not only for performance, but also for data integrity. 
+- A unique index does not allow any duplicate values to be inserted into the table.
+
+