From 546b273314267a011987ef8ad186122c125e64f2 Mon Sep 17 00:00:00 2001 From: GowthamRaj K <43011442+gowthamrajk@users.noreply.github.com> Date: Wed, 28 Jul 2021 17:38:42 +0530 Subject: [PATCH] Update README.md --- README.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/README.md b/README.md index 3918142..94b8679 100644 --- a/README.md +++ b/README.md @@ -471,3 +471,10 @@ Following are some of the most commonly used constraints available in SQL − - The UNIQUE operator searches every row of a specified table for uniqueness (no duplicates). # SQL - Expressions ✍ + +- SQL EXPRESSIONs are like formulae and they are written in query language. You can also use them to query the database for a specific set of data. + + SELECT column1, column2, columnN + FROM table_name + WHERE [CONDITION|EXPRESSION]; +