From 3c5d20819901919f5943a8c05cbf07cc5bf085c2 Mon Sep 17 00:00:00 2001 From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com> Date: Tue, 27 Jul 2021 19:22:08 +0530 Subject: [PATCH] Update README.md --- README.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README.md b/README.md index 35ab1f4..61b0afd 100644 --- a/README.md +++ b/README.md @@ -146,3 +146,11 @@ These components are − ## Column 🏹 - A column is a vertical entity in a table that contains all information associated with a specific field in a table. + +## NULL value 🚫 + +- A NULL value in a table is a value in a field that appears to be blank, which means a field with a NULL value is a field with no value. +- It is very important to understand that a NULL value is different than a zero value or a field that contains spaces. +- A field with a NULL value is the one that has been left blank during a record creation. + +