Home » set operators in sql

set operators in sql

Today, We want to share with you set operators in sql.In this post we will show you SQL Syntax Codes and Examples, hear for SQL Server blog on Set Operators in SQL Server (UNION, UNION ALL, INTERSECT, EXCEPT) we will give you demo and example for implement.In this post, we will learn about The Relational Algebra Relational set operators with an example.

Introduction of the set operators in sql

There are the Following The simple About Advanced SQL – Relational Set Operators Full Information With Example and source code.

As I will cover this Post with live Working example to develop Syntax Codes and Examples, so the Set Operators in SQL Server (UNION, UNION ALL, INTERSECT, EXCEPT) is used for this example is following below.

set operators in sql

There ate the List of the Set Multiple Operations In SQL With Examples Like as a UNION, UNION ALL, INTERSECT, MINUS

set operators in sql with examples

what are the different set operators in sql

There are the Following the list of SQL operator.This post will all about the set operations in SQL as well as DBMS such as a Union operator, Union All operator, Intersect operator as well as Minus(Set difference) demo with More Advance Leval Examples.

In this Best Articles, I will all about four different types of SQL SET operations, basic or advanced leval with example:

  1. Union
  2. Union all
  3. Intersect
  4. Minus
set-operators-in-sql
set-operators-in-sql

what is set operators in sql

here simple SQL provides some SET operations to be executed on Database table data such as a Union operator, Union all operator, Intersect operator and Set difference(Minus). In this post we will basic step by step about SQL Database query with SET some IMP operations.

Read Also:  PHP Format File Size Convert KB MB GB

There are the following the Important points of set operators:

  • first of all INTERSECT as well as UNION operators are Based on a commutative.
  • second Phase to Performance wise, simle SQL based UNION ALL displays higher performance as compared to operators of the UNION as a display rows of resources was not wasted in retriveing duplicates or mismatch as well as sorting the records data set.
  • here Set operators are the part of sql Advanced Based subqueries.
  • Set operators can not be any type of the utilized to select any sql Querys database TABLE assortment some more high level expressions.
  • The datatype are supported to LONG Based, BLOB, CLOB, BFILE, VARRAY, as well as Multple means nested DataBased table was not get or retrive to be used in Set operators. For an edit or update, a clause was not supported with the set operators.
set operators in sql
set operators in sql

Union Operation

UNION is used to merge the results of two or more SELECT sql Query. so it will eliminate mismatch or duplicate records from its result set. In Phase of union operator, total number of columns as well as suitable datatype must be same in mapping both the Database tables, on which here UNION operation is being changes.

Read Also:  jQuery Ajax QR Code Generator PHP script Download

Example of UNION

The Products Table

ID Name
1 ayushmankhurana
2 ankitjadeja

The User Table

ID Name
2 ankitjadeja
3 ChiragDethariya

Union SQL query will be,

SELECT * FROM Products 
UNION
SELECT * FROM User;

The resultset table will look like,

ID NAME
1 ayushmankhurana
2 ankitjadeja
3 ChiragDethariya

Union all Operation

Union all operation is most of the wark to Union. But it also display the multiple duplicate records.

Example of Union All

The Products Table

ID Name
1 ayushmankhurana
2 ankitjadeja

The User Table

ID Name
2 ankitjadeja
3 ChiragDethariya

Union All query will be like,

SELECT * FROM Products 
UNION ALL
SELECT * FROM User;

The resultset table will look like,

ID NAME
1 ayushmankhurana
2 ankitjadeja
2 ankitjadeja
3 ChiragDethariya

Intersect Operation

Intersect operation is used to merge two SELECT sql query, but it only retuns the records which are common from both SELECT sql query. In phase of Intersect the total number of columns as well as same datatype must be same.

Example of Intersect

The Products Table

ID Name
1 ayushmankhurana
2 ankitjadeja

The User Table

ID Name
2 ankitjadeja
3 ChiragDethariya

Intersect query will be,

SELECT * FROM Products 
INTERSECT
SELECT * FROM User;

The resultset table will look like

ID NAME
2 ankitjadeja

Minus Operation

The Minus operation merges rows of two SELECT sql query as well as return only those in the last usefult result, which belongs to the first database table set of the result.

Example of Minus

The Products Table

Read Also:  WordPress Remove Yellow BGBOX - donate
ID Name
1 ayushmankhurana
2 ankitjadeja

The User Table

ID Name
2 ankitjadeja
3 ChiragDethariya

Minus query will be,

SELECT * FROM Products 
MINUS
SELECT * FROM User;

The resultset table will look like,

ID NAME
1 ayushmankhurana

set operators in sql server

Relational Set Operators in DBMS

The relational Based set operators in Information using given simple all the example are as follows below

Product_Number Product_Name Product_Prices
1 Iphone 78
2 Mobile 41
3 Computer 48
Product_Number Product_Name Product_Prices
2 Mobile 85
3 Computer 115
6 LED 58

Union

Select Product_Name from Elec_Products
UNION
Select Product_Name from Shop_Products

Intersection

Select Product_Name from Elec_Products
INTERSECT
Select Product_Name from Shop_Products

Set difference

Select Product_Name from Elec_Products
MINUS
Select Product_Name from Shop_Products

relational set operators in sql with examples

Example 1: UNION

SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_SCHOOL
UNION
SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_INFORMATION;

Example 2: UNION ALL

SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_SCHOOL
UNION ALL
SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_INFORMATION;

Example 3: INTERSECT

SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_SCHOOL
INTERSECT
SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_INFORMATION;

Example 4: MINUS

SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_SCHOOL
MINUS
SELECT STUDENT_ID, STUDENT_NAME, STUDENT_ADDRESS, STUDENT_SSN 
FROM STUDENT_INFORMATION;

Web Programming Tutorials Example with Demo

Read :

Summary

You can also read about AngularJS, ASP.NET, VueJs, PHP.

I hope you get an idea about union and intersection.
I would like to have feedback on my infinityknow.com blog.
Your valuable feedback, question, or comments about this article are always welcome.
If you enjoyed and liked this post, don’t forget to share.


Related FAQ

Here are some more FAQ related to this Article:

  1. Read Also:  set operations sql
  2. Read Also:  WooCommerce Get list of all product categories
  3. Read Also:  NodeJS Login and Registration Authentication using mysql
  4. Read Also:  Nested Queries Subqueries in SQL Example
  5. Read Also:  MySQL LEFT Inner and outer where clause joins
  6. Read Also:  Laravel Increment and Decrement Example
  7. Read Also:  how to fetch data from database in codeigniter?
  8. Read Also:  Get multiple checkbox value using jquery PHP
  9. Read Also:  PHP Autocomplete Textbox using jQuery Example
  10. Read Also:  NodeJS Login and Registration Authentication using mysql

Leave a Comment

Your email address will not be published. Required fields are marked *