Hello @Sabareetha M P , Thanks for the question and using MS Q&A platform.
I want to understand how we can migrate Azure SQL database , Blob storage from Dev to QA environment, within the same subscription but with different resource group.
For Azure SQL database : You should evaluate that option on backup and restore. Since in your case its the same subscription it should work .
You can also try out the option to generate the scripts from SSMS ( old school)
For blob , you use Azure datafactory and also Azcopy .https://learn.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-blobs-copy#copy-a-blob
Let me know if you have any queries .
Thanks Himanshu
Please accept as "Yes" if the answer provided is useful , so that you can help others in the community looking for remediation for similar issues.