How to store Images and files Like pdf or text etc into sqlite database

I am trying to insert images , pdf files, text files into sqlite database. can you please help me on this.

I tried to store images into database by "blob" data. But I am having issues with it.

1. Is there any way store and retrieve the files like(images, pdf files etc) into sqlite database through command terminal.

2. If there is a way how can I do that please provide me commands

3. If not please provide me the alternate methods to overcome my issue.

Note: My requirement is to store the files into database not in physical location by storing path in database.

Please help me.