Codeigniter select query with AND and OR condition

Question

I want a Codeigniter select query from a table with three conditions in .

1. wrk_fld_exc = 140
2. wrk_cs_sts = Open
3. wrk_dlvrd_sts = Delivered OR wrk_cl_st         


        

Answer 1

 $this->db->where('wrk_fld_exc',140);

 $this->db->where('wrk_cs_sts','open');

 $where = '(wrk_dlvrd_sts="open" or wrk_cl_sts = "Success")';

 $this->db->where($where);