Question

I am using the following query to fetch a row with a particular mid.

Cursor mCursor =  mDb.query(true, DATABASE_TABLE, new String[] { KEY_ROWID, "actionData", "mid" }, "mid" + "=" + mid, null, null, null, null, null);

I however get an sqlite exception when I try to do the same. Any ideas?

The exception is –

 Error: android.database.sqlite.SQLiteException: no such column: qVEl3: , while compiling: SELECT DISTINCT _id, actionData, mid FROM notifs WHERE mid=qVEl3

Answer 1

You missed the quotations:

SELECT DISTINCT _id, actionData, mid FROM notifs WHERE mid='qVEl3'

So your Android code should be :

Cursor mCursor =  mDb.query(true, DATABASE_TABLE, new String[] 
    { KEY_ROWID, "actionData", "mid" }, 
    "mid=?", new String[] {mid}, null, null, null, null);

(that will prevent SQL injection too)