From 0abc04f366fe9cb4d5ef35c1476c4a2802af094e Mon Sep 17 00:00:00 2001
From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com>
Date: Tue, 27 Jul 2021 19:30:35 +0530
Subject: [PATCH] Update README.md

---
 README.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 3a549f3..83daf2c 100644
--- a/README.md
+++ b/README.md
@@ -189,25 +189,25 @@ These components are −
 
 Following are some of the most commonly used constraints available in SQL −
 
-### NOT NULL Constraint 
+### !) NOT NULL Constraint 
 − Ensures that a column cannot have a NULL value.
 
-### DEFAULT Constraint 
+### 2) DEFAULT Constraint 
 − Provides a default value for a column when none is specified.
 
-### UNIQUE Constraint 
+### 3) UNIQUE Constraint 
 − Ensures that all the values in a column are different.
 
-### PRIMARY Key 
+### 4) PRIMARY Key 
 − Uniquely identifies each row/record in a database table.
 
-### FOREIGN Key 
+### 5) FOREIGN Key 
 − Uniquely identifies a row/record in any another database table.
 
-### CHECK Constraint 
+### 6) CHECK Constraint 
 − The CHECK constraint ensures that all values in a column satisfy certain conditions.
 
-### INDEX  
+### 7) INDEX  
 − Used to create and retrieve data from the database very quickly.
 
 # Data Integrity 🚧