Changing Data Scheme in JavaScript
by Abdul Rawoof A R Updated: Mar 2, 2023
Guide Kit
A simple schema is just a map of keys and types: which is the same as using a type of property: a schema can also be a map between keys and default values in JavaScript, and the Schema is of three types: Logical Schema, Physical Schema, and view Schema.
- Logical Schema: it describes the database design at the logical level in JavaScript.
- Physical Schema: it describes the database design at the physical level in JavaScript.
- View Schema: it describes the design of the database at the view level in JavaScript.
In JavaScript, the Schema is nothing, but it is a new way of describing object schemas and has a clean and simple syntax. It can serialize to or from the popular JSON schema format; the typical use case is declarative object validation. An example of changing the data schema is the Schema changes to the database's structure, such as adding a column to a table and changing the datatype of a column in a table, then adding a new table, etc.
Here is an example of how to change the data scheme in JavaScript:
Fig : Preview of the output that you will get on running this code from your IDE.
Code
Instructions
Follow the steps carefully to get the output easily.
- Install JavaScript ES6 code snippet and Code Runner from Extension on your IDE(We use Visual Studio Code).
- Copy the snippet using the 'copy' and create one new file filename.js(eg.test.js) then paste the code in that JavaScript file.
- Save the file and run the file using run button to generate the output.
I hope you found this useful.
I found this code snippet by searching for 'How can I change data scheme in javascript' in kandi. You can try any such use case!
Environment Tested
I tested this solution in the following versions. Be mindful of changes when working with other versions.
- The solution is created and tested in Visual Studio Code 1.74.1.
- JavaScript ES6 Code Snippet version v1.8.0.
- Code Runner version v0.11.8.
Using this solution, we are able to change data scheme in javascript with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to change data scheme in javascript.
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