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:
- Union
- Union all
- Intersect
- Minus
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.
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.
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.
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
| 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;
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I hope you get an idea about union and intersection.
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