In this tutorial, we will study how to update the records of the table using the Nodejs application. Update the table from NodeJS program To update the records in the table, the UPDATE statement will be used. We will update the table using the update.js file. The javascript code for the following is: Here we …
In this tutorial, we will learn how to query data in a table from the Nodejs application by connecting to the MySQL database server. Selecting data from a MySQL table using NodeJS To select all the data from the table, the SELECT statement will be used. Here we will use the database named app which …
In this tutorial, we will learn how to insert rows in a table from a Nodejs application in a MySQL database server. Inserting single row using Nodejs First, we will learn how to insert a single row in the table named info of the database app. The code below is written in the javascript file …
In this tutorial, we will learn how to create tables in the MySQL database server from the Nodejs application. Connecting to MySQL database server First of all, we connect our Nodejs application to the MySQL database server. For that, the code given below will set up the connection. Here we have first connected to the …
In this tutorial, we will learn what BIT datatype, its syntax, its examples and how to convert the data from and to the BIT datatype is. This is going to be an exciting tutorial, so stay tuned till the end, and you will learn everything about the BIT datatype in MySQL. Introduction to BIT in …
There are several scenarios where you want to fetch random data and show it on the page or use it somehow depending on the output you want. In this article, we will learn how can we fetch random data from the MySQL table. We will see why we need random records and then we will …
In this tutorial, we will learn how to connect to a MySQL Database server using Nodejs. This guide is designed to be super simple for beginners! Installing Nodejs driver First of all, we will create a folder called Databases where the Nodejs app will be stored. After this use the below command to load package.json …
MySQL CHECK is an integrity constraint. The CHECK constraint is specifically used for restricting the input values that can be allowed to one or more columns in a table. The CHECK constraint functionality can be utilized after version 8.0.16 and above. Before MySQL 8.0.16 version, the syntax of the CHECK constraint was acceptable although the …
MySQL provides us multiple options to do the same operation but in slightly different ways. The MySQL RENAME TABLE is an alternative option we can use to rename the tables as well to perform other operations. In this tutorial, we will learn about the RENAME TABLE statement and its uses. We will start with the …
In this tutorial, we will learn about the MySQL ROW_NUMBER() function. It is a very important and helpful function that can be used to solve some complex problems. So, we will understand it with the introduction and syntax. And finally, we will see a few examples of the ROW_NUMBER() function, which will help us better …