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Please help me how I can retrieve my database I accidentally deleted it I don’t have a back up copy of it?
As far as I know and based on my own experience too, to retrieve a data that’s being deleted, you need to look for the backup file of it. If you probably deleted it from the hard drive, there is a possibility that you can still retrieve it or you can check your recycle bin too.
You can also go back to the folder where you saved it before and check if there are traces that you can use to retrieve it.
But if you can’t find it anymore and you’re very much sure that you deleted it from the database, unfortunately there are no other options.