ORA-22922: 不存在的 LOB 值 问题如何解决？

这些天一直在做自定义报表管理，被这个问题给烦住了。

replace(to_char(wmsys.wm_concat(distinct to_char(ws.userdefined5))),',',',')as fld_edi_description,

oracle应该是10.2.0.5以上的版本，wm_concat返回的是clob类型

这个WM_CONCAT导致的，这是oracle undocumented的一个列转行的函数，这个函数会把varchar的字段合为lob，但是奇怪的是即使用cast函数强转还是用substr和to_char结合 都解决不了这个问题。 

解决办法。

写了一个列转行的函数：

create or replace TYPE zh_concat_im
AUTHID CURRENT_USER AS OBJECT
(
  CURR_STR VARCHAR2(32767),
  STATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT zh_concat_im) RETURN NUMBER,
  MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT zh_concat_im,
               P1 IN VARCHAR2) RETURN NUMBER,
  MEMBER FUNCTION ODCIAGGREGATETERMINATE(SELF IN zh_concat_im,
                                 RETURNVALUE OUT VARCHAR2,
                                 FLAGS IN NUMBER)
                     RETURN NUMBER,
  MEMBER FUNCTION ODCIAGGREGATEMERGE(SELF IN OUT zh_concat_im,
                    SCTX2 IN  zh_concat_im) RETURN NUMBER
);
/
create or replace TYPE BODY zh_concat_im
IS
  STATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT zh_concat_im)
  RETURN NUMBER
  IS
  BEGIN
    SCTX := zh_concat_im(NULL) ;
    RETURN ODCICONST.SUCCESS;
  END;
  MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT zh_concat_im,
          P1 IN VARCHAR2)
  RETURN NUMBER
  IS
  BEGIN
    IF(CURR_STR IS NOT NULL) THEN
      CURR_STR := CURR_STR || ':' || P1;
    ELSE
      CURR_STR := P1;
    END IF;
    RETURN ODCICONST.SUCCESS;
  END;
  MEMBER FUNCTION ODCIAGGREGATETERMINATE(SELF IN zh_concat_im,
                                 RETURNVALUE OUT VARCHAR2,
                                 FLAGS IN NUMBER)
    RETURN NUMBER
  IS
  BEGIN
    RETURNVALUE := CURR_STR ;
    RETURN ODCICONST.SUCCESS;
  END;
  MEMBER FUNCTION ODCIAGGREGATEMERGE(SELF IN OUT zh_concat_im,
                                   SCTX2 IN zh_concat_im)
  RETURN NUMBER
  IS
  BEGIN
    IF(SCTX2.CURR_STR IS NOT NULL) THEN
      SELF.CURR_STR := SELF.CURR_STR || ':' || SCTX2.CURR_STR ;
    END IF;
    RETURN ODCICONST.SUCCESS;
  END;
END;
/

函数：

create or replace FUNCTION zh_concat(P1 VARCHAR2)
RETURN VARCHAR2 AGGREGATE USING zh_concat_im ;
/

效率不如WM_CONCAT但是还是解决了这个问题

select 
        TO_CHAR(SYSDATE,'yyyymmdd') as fld_TM_manifest_id,
        1 as fld_TM_cartons ,
        nvl(ps.wmps_grossweight,0)as fld_TM_cbm ,
        nvl(ps.wmps_cubic,0)as fld_TM_weight ,
        'AIR'as  fld_TM_container_type,
        '' as fld_TM_container_no,
        'AUD' as fld_TM_seal_no,
        ''as fld_TM_vessel_name,
        TO_CHAR(SYSDATE+1,'DD/MM/YYYY') as fld_TM_edt,
        ps.wmps_traceID as fld_TMD_connote_no,
        p.userdefined2 as fld_TMD_order_no,  
        1 as fld_TMD_cartons,
        nvl(ps.wmps_cubic, 0) as fld_TMD_cbm,
        nvl(ps.wmps_grossweight, 0) as fld_TMD_weight,
        to_char(sysdate,'Month dd yyyy hh:miAM','NLS_DATE_LANGUAGE = American')||'_BWB_Manifest' as fld_TO_filename,
        TO_CHAR(SYSDATE+3,'dd/mm/yyyy') as fld_TO_import_date,
        o.wmor_soreference2 as fld_TO_order_no,
        1 as fld_TO_carrier,
        o.wmor_consigneename as fld_TO_surname,
        NVL(o.wmor_c_address1, ' ') as fld_TO_address_1,
        NVL(o.wmor_c_address2, ' ') as fld_TO_address_2,
        o.wmor_c_country as fld_TO_country_code,
        o.wmor_c_city as fld_TO_suburb,
        NVL(o.wmor_c_province, ' ') as fld_TO_state,
        o.wmor_c_zip as fld_TO_postcode,
        NVL(o.wmor_c_tel1, ' ') as fld_TO_telephone,
        'AeParcelPac' as fld_TO_delivery_instr,
        NVL(o.wmor_c_address3, ' ') as fld_TO_address_3,
        NVL(ps.wmps_grossweight, 0) as fld_TO_weight,
        1 as fld_TOL_line_no,
        '' as fld_TOL_product_no,
        '' as fld_TOL_item_no,   
        1 as fld_TOL_quantity,  
        TO_CHAR(SYSDATE+5,'DD/MM/YY') as fld_TOL_promised_date,   
        sum(NVL(os.userdefined2,0)* os.wmos_qtypicked) as fld_TOL_price,
        sum(NVL(os.userdefined2,0)* os.wmos_qtypicked)   as fld_TOL_total_amount, 
       -- substr(to_char(wmsys.wm_concat(distinct to_char(ws.userdefined5))) ,1,2000)as fld_edi_description,
       --select to_char(ZH_Concat(userdefined5)) from cd_wh_sku group by cdsk_sku_code;
      to_char(ZH_Concat(distinct to_char(ws.userdefined5))) as fld_edi_description,
        'Jeanswest' as mame,
        '11th Floor, Unit C, 2 Tins Centre'as addr1,
        'Hung Cheung Road 3' as addr2,
        'Tuen Mun' as city,
        '*' as state,
        'NA' as postcode,
        'HK'as country

from wm_out_packing_summary ps,wm_out_packing p,wm_out_order o,wm_out_order_sku os,cd_wh_sku ws
where 
     ps.wmps_traceid=p.wmop_traceid
and  p.wmop_orderno=o.wmor_order_no
and  p.wmop_sku_code=os.wmos_sku_code
and  os.wmos_order_no=o.wmor_order_no
and  ws.cdsk_sku_code=os.wmos_sku_code
group by
ps.wmps_traceID,o.wmor_soreference2,o.wmor_consigneename,o.wmor_c_country,o.wmor_c_city,o.wmor_c_zip,ps.wmps_grossweight,
ps.wmps_cubic,ps.wmps_cubic,ps.wmps_grossweight,o.wmor_c_address1,o.wmor_c_address2,o.wmor_c_province,o.wmor_c_tel1,o.wmor_c_address3,