Check whether database is empty

Question

I am trying to check if a sqlite database is empty using

public boolean chkDB(){
        boolean chk = false;
        Cursor mCursor = db.rawQuery(\"SELECT          


        

Answer 1

Set up a query-method (either in your ContentProvider directly) or in another class using your ContentResolver with a projection for one column (ID should do the trick). Then see if the cursor contains anything or not.

I did this outside the ContentProvider in a task class:

//Is database empty?
public static boolean isDbEmpty(Context context) {
    ContentResolver contentResolver = context.getContentResolver();

    String[] projection = new String[] {#_ID#};

    Cursor csr = checkResolver.query(#CONTENT_URI#, projection, null,
            null, null);
    if (csr != null && csr.moveToFirst()) {
        csr.close();
        return  false;
    } else {
        return true;
    }
}