How to dump a file stored in a sqlite database as a blob?

Question

I have a sqlite3 database. One column has the TEXT type, and contains blobs which I would like to save as file. Those are gzipped files.

The output of the command

Answer 1

You can use writefile if using the sqlite3 command line tool:

Example usage: select writefile('blob.bin', blob_column) from table where key='12345';