Hi @Pulipati Vedanth ,
Thanks for using Microsoft Q&A !!
As per my limited knowledge on GitHub Actions, I do not think there is a way to load the content of JSON file to a SQL database however you can explore options of reading the file content using Read-file-Action and pass the data to SQL procedure as a variable and then write insert code at SQL end. I also suggest you to post your question to GitHub Actions Support Community for a better solution from community experts.
Thanks
Saurabh