How to delete a row from a table in SQLite android by query statement?

My code thas not working delete operation on button click.

Button delete_user= (Button) findViewById(R.id.delete_user);

    delete_user.setOnClickListener(new View.OnClickListener() {
        @Override

        public void onClick(View view) {


            SignIn_Signup.sqLiteDatabase.execSQL("DELETE FROM mytable WHERE name='name.getText()';");

        }
    });

please help.