In this tutorial, we are going to learn how to use the SQL UNION operator. An SQL union operator is used to combine two or more result sets from multiple queries.

Table of Contents:

Union syntax:

SELECT column1,column2,column3 
FROM table_name 1
SELECT column4,column5
FROM table_name 2;

Union All syntax:

SELECT column1,column2,column3 
FROM table_name 1…

SQL order by

In this tutorial how to use the SQL order by clause with syntax and examples.

SQL ORDER BY clause is used to sort the data or record using ASC | DESC.

SQL ORDER BY sorts the records in ASC (ascending order) by default.

syntax 1:

SELECT column 1,column 2, .... column N…

In this tutorial, we will learn how to create HTML codes for creating salary slip demo and download file and salary payslip is preparing of our own salary slip written document that is often given to the company or government employees at the end of the month on accounts department…

Function in JavaScript with Examples

In this tutorial, you will learn about javascript function and function expression with detail from this below examples.

Javascript Function

The fundamental building block of code that performs real-world JavaScript applications is functions. They are one of the most essential concepts in the language. …


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