How to disable Android SQLite Journal file?

问题

I am using transactions to insert multiple rows into table. But, I still see temporary sqlite-journal file being created on SD Card along with sqlite table.

How do I disable creation of journal file?

Thanks

回答1:

You can elect to keep the journal in memory so that no -journal file is created:

pragma journal_mode=memory;

Note that you need to run this each time you open the database.

I recommend that you read the following to get a better idea of what is going on:

http://www.sqlite.org/pragma.html#pragma_journal_mode

回答2:

The journal is an internal SQLite file that is used when running transactions (to ensure roll back). You cannot disable it, and you don't want to.

回答3:

Please remind, the statement PRAGMA journal_mode=OFF or PRAGMA journal_mode=memory is valid per transaction base. You need to set it for every transaction.

回答4:

You can delete journal file using below code

@Override
public void onOpen(SQLiteDatabase db) {         
    Cursor cc = db.rawQuery("PRAGMA journal_mode=DELETE",null);
    Log.i(TAG,"--- cursor count " + cc.getCount());     
    super.onOpen(db);        
}

You need to use cursor. Cursor is a interface provides random read-write access to the result set returned by a database query. The journal file will get delete if you use cursor.

来源：https://stackoverflow.com/questions/10046596/how-to-disable-android-sqlite-journal-file