sqlite journal recovery

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hi, i am new to sqlite and i am trying to recover some data from a journal file into the main db - the db file doesnt contain all the records we would expect. I have opened the journal in notepad and i can see text so not sure what has happened?

I have tried:

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sqlite3 control.db-journal .dump | sqlite3 recovered.db
this creates a empty 0kb db, no errors

Next:

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sqlite3 control.db-journal
pragma integrity_check;
This returns "Error: file is encrypted or is not a database"

Am i missing something? Many help appreciated