Except Clause

How To Use Except Clause In SQL

Introduction:
In this article, you will learn, what except clause is and how to use except clause in SQL.

The “except clause” is used to join the two tables and give the output only from the first table data. It removes the duplicate data in the first table. SQL “except clause” is same as the minus operation in Oracle. If we use this clause, it is just that the series of all the column same in all query. The data types for the columns necessary be appropriate.

Here, We have two tables-

Employee Table

Query Table

Now, we collect same records in both the tables, according to our condition.

Syntax

The syntax of except clause is as follows.

select column1, column2... from table1 [where condition] table2 [where condition]

Except

select column1, column2.... from table1 [where condition] table2 [where condition]

Example

Step 1: We write our query for except clause.

Now, select and execute this query.

Step 2: The output of this query is:

Summary:
Thus, we learned, except clause is used to join the tables, but it gives the output only from first table data and also learn its use.