[Concept Entry] Postgresql constants

[codecademy-docs]

Reason/inspiration (optional)

We would like a new entry on the Constants concept under PostgreSQL. The entry should go in a new file under docs/content/postgresql/concepts/constants/constants.md.

The entry should include:

• An introductory paragraph that describes the concept
• A ‘Syntax’ section that includes the syntax for the concept (if applicable)
• An ‘Example’ section that shows the concept in use

Please refer to the concept entry template, content standards, and markdown style guide when working on the PR for this issue.

Entry Type (select all that apply)

New Concept Entrty for Existing Topic

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[Dan-Tyas]

Could i be assigned this issue please?

[Sriparno08]

Hey @Dan-Tyas, you're assigned!

You can look through the Contribution Guide to know more about contributing to Codecademy Docs. Check out the Content Standards and Style Guide to get help with creating your entry.

[Dan-Tyas]

I've added the required folder/file and made a change to the tag.md file to include another tag. Please could you review the changes at your earliest convenience. Thanks.