Как использовать оператор "и" в базе данных android

---

I am working with sqlite in Android. In the query from below I want to use two columns, 'col_4' and 'col_3'. I tried to use the 'AND' operator but it got an error code[1].
For the following query, can someone tell me how to add 'AND'operator:
 public boolean checkIfRecordExist(String TABLE_NAME,String
                              COL_4,String COL_3,String pss,String chek) 
                        {
                try
             {
             SQLiteDatabase db=this.getReadableDatabase();
             Cursor cursor=db.rawQuery("SELECT "+COL_4+" FROM "+TABLE_NAME+"   
                     WHERE "+COL_4+"='"+chek+"'",null);

What I have tried:

I tried most and search google but did'nt get any thing else

---