ABAP Select data from SAP table LXDCKM_OUTLDOCV_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LXDCKM_OUTLDOCV_HEADER 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 LXDCKM_OUTLDOCV_HEADER. 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 LXDCKM_OUTLDOCV_HEADER 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_LXDCKM_OUTLDOCV_HEADER TYPE STANDARD TABLE OF LXDCKM_OUTLDOCV_HEADER,
      WA_LXDCKM_OUTLDOCV_HEADER TYPE LXDCKM_OUTLDOCV_HEADER,
      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: <LXDCKM_OUTLDOCV_HEADER> TYPE LXDCKM_OUTLDOCV_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LXDCKM_OUTLDOCV_HEADER
*  INTO TABLE @DATA(IT_LXDCKM_OUTLDOCV_HEADER2).
*--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_LXDCKM_OUTLDOCV_HEADER INDEX 1 INTO DATA(WA_LXDCKM_OUTLDOCV_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LXDCKM_OUTLDOCV_HEADER>-DOCTY = 1.
<LXDCKM_OUTLDOCV_HEADER>-DOCNR = 1.
<LXDCKM_OUTLDOCV_HEADER>-DOCPR = 1.
<LXDCKM_OUTLDOCV_HEADER>-TKNUM = 1.
<LXDCKM_OUTLDOCV_HEADER>-ROUTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LXDCKM_OUTLDOCV_HEADER-LGTOR, sy-vline,
  WA_LXDCKM_OUTLDOCV_HEADER-LGBZO, sy-vline,
  WA_LXDCKM_OUTLDOCV_HEADER-SPDNR, sy-vline,
  WA_LXDCKM_OUTLDOCV_HEADER-NAME_SP, sy-vline,
  WA_LXDCKM_OUTLDOCV_HEADER-XPLDT, sy-vline,
  WA_LXDCKM_OUTLDOCV_HEADER-SHPDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LXDCKM_OUTLDOCV_HEADER 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_LXDCKM_OUTLDOCV_HEADER 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_LXDCKM_OUTLDOCV_HEADER INTO WA_LXDCKM_OUTLDOCV_HEADER.


*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 ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-TKNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-SPDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-SPDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field XPLDT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-XPLDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-XPLDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field SHPDT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-SHPDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-SHPDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field RLSDT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-RLSDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-RLSDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field MTCDT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-MTCDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-MTCDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field KODAT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-KODAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-KODAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field LDDAT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-LDDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-LDDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field TDDAT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-TDDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-TDDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field WADAT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-WADAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-WADAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field LFDAT
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-LFDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-LFDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TERNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-TERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-TERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BENUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-BENUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-BENUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRPNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-GRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-GRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PWLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXDCKM_OUTLDOCV_HEADER-PWLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_OUTLDOCV_HEADER-PWLIF.
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_LXDCKM_OUTLDOCV_HEADER_STR, 
DOCTY TYPE STRING,
DOCNR TYPE STRING,
DOCPR TYPE STRING,
TKNUM TYPE STRING,
ROUTE TYPE STRING,
LGTOR TYPE STRING,
LGBZO TYPE STRING,
SPDNR TYPE STRING,
NAME_SP TYPE STRING,
XPLDT TYPE STRING,
SHPDT TYPE STRING,
RLSDT TYPE STRING,
MTCDT TYPE STRING,
KODAT TYPE STRING,
LDDAT TYPE STRING,
TDDAT TYPE STRING,
WADAT TYPE STRING,
LFDAT TYPE STRING,
VKORG TYPE STRING,
VTWIV TYPE STRING,
VSTEL TYPE STRING,
PRVBE TYPE STRING,
TERNR TYPE STRING,
KUNAG TYPE STRING,
KUNNR TYPE STRING,
KDGRP TYPE STRING,
AULWE TYPE STRING,
LSTEL TYPE STRING,
ABLAD TYPE STRING,
VSART TYPE STRING,
GMSTS TYPE STRING,
VSBED TYPE STRING,
LIFNR TYPE STRING,
LIFEX TYPE STRING,
BETYP TYPE STRING,
BENUM TYPE STRING,
LZNUM TYPE STRING,
TRAID TYPE STRING,
ITEMS TYPE STRING,
GRPNR TYPE STRING,
IMWRK TYPE STRING,
TRAGR TYPE STRING,
PWLIF TYPE STRING,
RESWK TYPE STRING,
DCSTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LXDCKM_OUTLDOCV_HEADER_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_LXDCKM_OUTLDOCV_HEADER_STR-DOCTY sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-DOCNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-DOCPR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-TKNUM sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-ROUTE sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LGTOR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LGBZO sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-SPDNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-NAME_SP sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-XPLDT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-SHPDT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-RLSDT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-MTCDT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-KODAT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LDDAT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-TDDAT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-WADAT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LFDAT sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-VKORG sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-VTWIV sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-VSTEL sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-PRVBE sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-TERNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-KUNAG sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-KUNNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-KDGRP sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-AULWE sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LSTEL sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-ABLAD sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-VSART sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-GMSTS sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-VSBED sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LIFNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LIFEX sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-BETYP sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-BENUM sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-LZNUM sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-TRAID sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-ITEMS sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-GRPNR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-IMWRK sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-TRAGR sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-PWLIF sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-RESWK sy-vline 
WA_LXDCKM_OUTLDOCV_HEADER_STR-DCSTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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