ABAP Select data from SAP table CNV_10020_REFOBJ into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNV_10020_REFOBJ table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CNV_10020_REFOBJ. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CNV_10020_REFOBJ table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CNV_10020_REFOBJ TYPE STANDARD TABLE OF CNV_10020_REFOBJ,
      WA_CNV_10020_REFOBJ TYPE CNV_10020_REFOBJ,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CNV_10020_REFOBJ> TYPE CNV_10020_REFOBJ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNV_10020_REFOBJ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNV_10020_REFOBJ
  INTO TABLE IT_CNV_10020_REFOBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_10020_REFOBJ
*  INTO TABLE @DATA(IT_CNV_10020_REFOBJ2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CNV_10020_REFOBJ INDEX 1 INTO DATA(WA_CNV_10020_REFOBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNV_10020_REFOBJ ASSIGNING <CNV_10020_REFOBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_10020_REFOBJ>-MANDT = 1.
<CNV_10020_REFOBJ>-PACKID = 1.
<CNV_10020_REFOBJ>-PACKT = 1.
<CNV_10020_REFOBJ>-PACKID_SRC = 1.
<CNV_10020_REFOBJ>-PACKID_MAIN = 1.

ENDLOOP.

LOOP AT IT_CNV_10020_REFOBJ INTO WA_CNV_10020_REFOBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_10020_REFOBJ-PKG_SRC, sy-vline,
  WA_CNV_10020_REFOBJ-PKG_MAIN, sy-vline,
  WA_CNV_10020_REFOBJ-OBJID, sy-vline,
  WA_CNV_10020_REFOBJ-OBJTYPE, sy-vline,
  WA_CNV_10020_REFOBJ-DTOBJ, sy-vline,
  WA_CNV_10020_REFOBJ-DTOBJ_TPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_10020_REFOBJ you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CNV_10020_REFOBJ TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CNV_10020_REFOBJ INTO WA_CNV_10020_REFOBJ.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit CNVO6, internal->external for field STATUS
CALL FUNCTION 'CONVERSION_EXIT_CNVO6_OUTPUT'
  EXPORTING
    input =                      WA_CNV_10020_REFOBJ-STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_10020_REFOBJ-STATUS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CNVO3, internal->external for field CARD_REQ
CALL FUNCTION 'CONVERSION_EXIT_CNVO3_OUTPUT'
  EXPORTING
    input =                      WA_CNV_10020_REFOBJ-CARD_REQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_10020_REFOBJ-CARD_REQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CNVO3, internal->external for field CARD_SYS
CALL FUNCTION 'CONVERSION_EXIT_CNVO3_OUTPUT'
  EXPORTING
    input =                      WA_CNV_10020_REFOBJ-CARD_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_10020_REFOBJ-CARD_SYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CNVO6, internal->external for field PLTP_ENTRIES
CALL FUNCTION 'CONVERSION_EXIT_CNVO6_OUTPUT'
  EXPORTING
    input =                      WA_CNV_10020_REFOBJ-PLTP_ENTRIES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_10020_REFOBJ-PLTP_ENTRIES.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CNVO6, internal->external for field DETAIL
CALL FUNCTION 'CONVERSION_EXIT_CNVO6_OUTPUT'
  EXPORTING
    input =                      WA_CNV_10020_REFOBJ-DETAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_10020_REFOBJ-DETAIL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CNV_10020_REFOBJ_STR, 
MANDT TYPE STRING,
PACKID TYPE STRING,
PACKT TYPE STRING,
PACKID_SRC TYPE STRING,
PACKID_MAIN TYPE STRING,
PKG_SRC TYPE STRING,
PKG_MAIN TYPE STRING,
OBJID TYPE STRING,
OBJTYPE TYPE STRING,
DTOBJ TYPE STRING,
DTOBJ_TPL TYPE STRING,
DT_OBJ_S TYPE STRING,
DT_TYPE_S TYPE STRING,
DTOBJ_S TYPE STRING,
PATHID TYPE STRING,
PATHTYPE TYPE STRING,
DTOBJ_T TYPE STRING,
PATH_E TYPE STRING,
PATH_S TYPE STRING,
PATH_M TYPE STRING,
PATH_C TYPE STRING,
CFOBJ TYPE STRING,
FVOBJ TYPE STRING,
CDOBJ TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
RELID TYPE STRING,
PRIORITY TYPE STRING,
PROGNAME TYPE STRING,
DT_RUN TYPE STRING,
DATATABLE TYPE STRING,
XFELD TYPE STRING,
FILL_MODE TYPE STRING,
NOT_RELV TYPE STRING,
ENTRIES TYPE STRING,
PROPOSALS TYPE STRING,
LENGTH TYPE STRING,
FORCESEL TYPE STRING,
STATUS TYPE STRING,
OBJNR TYPE STRING,
SO_LINES TYPE STRING,
CARD_REQ TYPE STRING,
CARD_SYS TYPE STRING,
DELIMIT TYPE STRING,
PROTMODE TYPE STRING,
TEXT TYPE STRING,
VIEWMODE_DTFLD TYPE STRING,
ANA_NAVI_DTFLD TYPE STRING,
ANA_NAVI_PROP TYPE STRING,
CALCMODE TYPE STRING,
OFFS TYPE STRING,
LENG TYPE STRING,
PLTP_ENTRIES TYPE STRING,
TAB_STD TYPE STRING,
USER_MODE TYPE STRING,
COMPNAME TYPE STRING,
RULENAME TYPE STRING,
VLISTNAME TYPE STRING,
ARULE TYPE STRING,
CONDNAME TYPE STRING,
CONDTYPE TYPE STRING,
CONDFV TYPE STRING,
CONDFF TYPE STRING,
CONDFD TYPE STRING,
CONDDV TYPE STRING,
CONDDD TYPE STRING,
CONDCR TYPE STRING,
CONDCM TYPE STRING,
CONDCC TYPE STRING,
ACTIONNAME TYPE STRING,
ACTIONTYPE TYPE STRING,
ACTOC TYPE STRING,
ACTOD TYPE STRING,
ACTOF TYPE STRING,
ACTOM TYPE STRING,
ACTOS TYPE STRING,
ACTAR TYPE STRING,
ACTAM TYPE STRING,
ACTAN TYPE STRING,
ACTAL TYPE STRING,
ACTAD TYPE STRING,
ACTAC TYPE STRING,
AVLIST TYPE STRING,
OOTYPE TYPE STRING,
OBJID_S TYPE STRING,
OBJTYPE_S TYPE STRING,
DETAIL TYPE STRING,
CNUMBER TYPE STRING,
FIELDOBJ TYPE STRING,
TYPE TYPE STRING,
PARM TYPE STRING,
VIEWMODE_RCOMP TYPE STRING,
DOKU_OBJ TYPE STRING,
CONFLICT_DETECTION TYPE STRING,
CONF_DETECTION TYPE STRING,
ICON_STD TYPE STRING,
ICON_PARM TYPE STRING,
ICON_DOKU TYPE STRING,
RULE_PROP_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_10020_REFOBJ_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CNV_10020_REFOBJ_STR-MANDT sy-vline 
WA_CNV_10020_REFOBJ_STR-PACKID sy-vline 
WA_CNV_10020_REFOBJ_STR-PACKT sy-vline 
WA_CNV_10020_REFOBJ_STR-PACKID_SRC sy-vline 
WA_CNV_10020_REFOBJ_STR-PACKID_MAIN sy-vline 
WA_CNV_10020_REFOBJ_STR-PKG_SRC sy-vline 
WA_CNV_10020_REFOBJ_STR-PKG_MAIN sy-vline 
WA_CNV_10020_REFOBJ_STR-OBJID sy-vline 
WA_CNV_10020_REFOBJ_STR-OBJTYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-DTOBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-DTOBJ_TPL sy-vline 
WA_CNV_10020_REFOBJ_STR-DT_OBJ_S sy-vline 
WA_CNV_10020_REFOBJ_STR-DT_TYPE_S sy-vline 
WA_CNV_10020_REFOBJ_STR-DTOBJ_S sy-vline 
WA_CNV_10020_REFOBJ_STR-PATHID sy-vline 
WA_CNV_10020_REFOBJ_STR-PATHTYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-DTOBJ_T sy-vline 
WA_CNV_10020_REFOBJ_STR-PATH_E sy-vline 
WA_CNV_10020_REFOBJ_STR-PATH_S sy-vline 
WA_CNV_10020_REFOBJ_STR-PATH_M sy-vline 
WA_CNV_10020_REFOBJ_STR-PATH_C sy-vline 
WA_CNV_10020_REFOBJ_STR-CFOBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-FVOBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-CDOBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-TABNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-FIELDNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-RELID sy-vline 
WA_CNV_10020_REFOBJ_STR-PRIORITY sy-vline 
WA_CNV_10020_REFOBJ_STR-PROGNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-DT_RUN sy-vline 
WA_CNV_10020_REFOBJ_STR-DATATABLE sy-vline 
WA_CNV_10020_REFOBJ_STR-XFELD sy-vline 
WA_CNV_10020_REFOBJ_STR-FILL_MODE sy-vline 
WA_CNV_10020_REFOBJ_STR-NOT_RELV sy-vline 
WA_CNV_10020_REFOBJ_STR-ENTRIES sy-vline 
WA_CNV_10020_REFOBJ_STR-PROPOSALS sy-vline 
WA_CNV_10020_REFOBJ_STR-LENGTH sy-vline 
WA_CNV_10020_REFOBJ_STR-FORCESEL sy-vline 
WA_CNV_10020_REFOBJ_STR-STATUS sy-vline 
WA_CNV_10020_REFOBJ_STR-OBJNR sy-vline 
WA_CNV_10020_REFOBJ_STR-SO_LINES sy-vline 
WA_CNV_10020_REFOBJ_STR-CARD_REQ sy-vline 
WA_CNV_10020_REFOBJ_STR-CARD_SYS sy-vline 
WA_CNV_10020_REFOBJ_STR-DELIMIT sy-vline 
WA_CNV_10020_REFOBJ_STR-PROTMODE sy-vline 
WA_CNV_10020_REFOBJ_STR-TEXT sy-vline 
WA_CNV_10020_REFOBJ_STR-VIEWMODE_DTFLD sy-vline 
WA_CNV_10020_REFOBJ_STR-ANA_NAVI_DTFLD sy-vline 
WA_CNV_10020_REFOBJ_STR-ANA_NAVI_PROP sy-vline 
WA_CNV_10020_REFOBJ_STR-CALCMODE sy-vline 
WA_CNV_10020_REFOBJ_STR-OFFS sy-vline 
WA_CNV_10020_REFOBJ_STR-LENG sy-vline 
WA_CNV_10020_REFOBJ_STR-PLTP_ENTRIES sy-vline 
WA_CNV_10020_REFOBJ_STR-TAB_STD sy-vline 
WA_CNV_10020_REFOBJ_STR-USER_MODE sy-vline 
WA_CNV_10020_REFOBJ_STR-COMPNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-RULENAME sy-vline 
WA_CNV_10020_REFOBJ_STR-VLISTNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-ARULE sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDTYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDFV sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDFF sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDFD sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDDV sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDDD sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDCR sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDCM sy-vline 
WA_CNV_10020_REFOBJ_STR-CONDCC sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTIONNAME sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTIONTYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTOC sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTOD sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTOF sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTOM sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTOS sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAR sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAM sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAN sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAL sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAD sy-vline 
WA_CNV_10020_REFOBJ_STR-ACTAC sy-vline 
WA_CNV_10020_REFOBJ_STR-AVLIST sy-vline 
WA_CNV_10020_REFOBJ_STR-OOTYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-OBJID_S sy-vline 
WA_CNV_10020_REFOBJ_STR-OBJTYPE_S sy-vline 
WA_CNV_10020_REFOBJ_STR-DETAIL sy-vline 
WA_CNV_10020_REFOBJ_STR-CNUMBER sy-vline 
WA_CNV_10020_REFOBJ_STR-FIELDOBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-TYPE sy-vline 
WA_CNV_10020_REFOBJ_STR-PARM sy-vline 
WA_CNV_10020_REFOBJ_STR-VIEWMODE_RCOMP sy-vline 
WA_CNV_10020_REFOBJ_STR-DOKU_OBJ sy-vline 
WA_CNV_10020_REFOBJ_STR-CONFLICT_DETECTION sy-vline 
WA_CNV_10020_REFOBJ_STR-CONF_DETECTION sy-vline 
WA_CNV_10020_REFOBJ_STR-ICON_STD sy-vline 
WA_CNV_10020_REFOBJ_STR-ICON_PARM sy-vline 
WA_CNV_10020_REFOBJ_STR-ICON_DOKU sy-vline 
WA_CNV_10020_REFOBJ_STR-RULE_PROP_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.