Android – data type mismatch error when using ORDER BY

androidsqlite

I've got an android app using a local sqlite database.

private SQLiteDatabase mDb;

when I run this query I get my Cursor over rows with pid equal to id, as desired:

mDb.query(true, PT_TABLE, new String[] {KEY_PID, KEY_TID}, 
    KEY_PID+" = "+id, null, null, null, null, null);

when I run the following query, aiming to get that same result set, ordered by pid I get "android.database.sqlite.SQLiteException: datatype mismatch"

mDb.query(true, PT_TABLE, new String[] {KEY_PID, KEY_TID}, 
    KEY_PID+" = "+id, null, null, null, null, KEY_PID+" DESC");

Any ideas?

Best Answer

It looks like you got just a little mixed up. According to the SQLiteDatabase.query documentation, the last argument is the LIMIT clause. The second to last is the ORDER BY clause.

Cursor query (boolean distinct, 
            String table, 
            String[] columns, 
            String selection, 
            String[] selectionArgs, 
            String groupBy, 
            String having, 
            String orderBy, // <-- ORDER BY
            String limit)

EDIT

But, there is also another SQLiteDatabase.query where ORDER BY would be last

Cursor query (String table, 
            String[] columns, 
            String selection, 
            String[] selectionArgs, 
            String groupBy, 
            String having, 
            String orderBy)
Related Topic