Hi..
I am using an function and in that I am using dynamic sql. Currently I am handling not null values but now I need to handle null values for all rec.FB_LVL as well. Can anyone please tell me how I can use it in my below function.
FUNCTION F_adac_qry_ps(p_row_num        NUMBER, 
                                        p_data_source    VARCHAR2, 
                                        p_excl_incl_flag CHAR) 
RETURN CLOB 
IS 
  v_qry_str CLOB; 
  v_qry     CLOB; 
BEGIN 
    FOR lv_rec IN (SELECT * 
                   FROM   lr_config 
                   WHERE  row_num = p_row_num 
                          AND data_source = p_data_source 
                          AND excl_incl_flag = p_excl_incl_flag 
                          AND is_active = 'Y') LOOP 
        v_qry := ' OR (1=1'; 
        IF lv_rec.fb_lvl2_cd IS NOT NULL THEN 
          IF lv_rec.fb_lvl2_flag = v_incl_flag THEN 
            v_qry := v_qry ||' AND FB_LVL2_CD IN (' ||lv_rec.fb_lvl2_cd ||')'; 
          ELSE 
            v_qry := v_qry ||' AND FB_LVL2_CD NOT IN (' ||lv_rec.fb_lvl2_cd ||')'; 
          END IF; 
        END IF; 
        IF lv_rec.lv_prod_type_0_code IS NOT NULL THEN 
          v_qry := v_qry ||' AND PROD_TYPE_0_CODE IN (' ||lv_rec.lv_prod_type_0_code ||')'; 
        END IF; 
        IF lv_rec.lv_prod_type_2_code IS NOT NULL THEN 
          v_qry := v_qry ||' AND PROD_TYPE_2_CODE IN (' ||lv_rec.lv_prod_type_2_code ||')'; 
        END IF; 
        v_qry := v_qry ||' )'; 
        v_qry_str := v_qry_str ||v_qry; 
    END LOOP; 
    RETURN v_qry_str; 
END f_adac_qry_ps;