From fb817ce68992fdbddb8113cfde73e13523f80955 Mon Sep 17 00:00:00 2001
From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com>
Date: Thu, 29 Jul 2021 08:30:27 +0530
Subject: [PATCH] Update README.md

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 982e399..c089bc2 100644
--- a/README.md
+++ b/README.md
@@ -735,3 +735,7 @@ The following guidelines indicate when the use of an index should be reconsidere
 ### Change DATA TYPE
 
     ALTER TABLE table_name MODIFY COLUMN column_name datatype;
+
+### NOT NULL
+
+