ABAP Select data from SAP table J_1BDY_CTEDOCREF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1BDY_CTEDOCREF 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 J_1BDY_CTEDOCREF. 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 J_1BDY_CTEDOCREF 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_J_1BDY_CTEDOCREF TYPE STANDARD TABLE OF J_1BDY_CTEDOCREF,
      WA_J_1BDY_CTEDOCREF TYPE J_1BDY_CTEDOCREF,
      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: <J_1BDY_CTEDOCREF> TYPE J_1BDY_CTEDOCREF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1BDY_CTEDOCREF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1BDY_CTEDOCREF
  INTO TABLE IT_J_1BDY_CTEDOCREF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1BDY_CTEDOCREF
*  INTO TABLE @DATA(IT_J_1BDY_CTEDOCREF2).
*--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_J_1BDY_CTEDOCREF INDEX 1 INTO DATA(WA_J_1BDY_CTEDOCREF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1BDY_CTEDOCREF ASSIGNING <J_1BDY_CTEDOCREF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1BDY_CTEDOCREF>-MANDT = 1.
<J_1BDY_CTEDOCREF>-DOCNUM = 1.
<J_1BDY_CTEDOCREF>-COUNTER = 1.
<J_1BDY_CTEDOCREF>-RFDOCNUM = 1.
<J_1BDY_CTEDOCREF>-LOGSYS = 1.

ENDLOOP.

LOOP AT IT_J_1BDY_CTEDOCREF INTO WA_J_1BDY_CTEDOCREF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1BDY_CTEDOCREF-DOCVAL, sy-vline,
  WA_J_1BDY_CTEDOCREF-REGIO, sy-vline,
  WA_J_1BDY_CTEDOCREF-NFYEAR, sy-vline,
  WA_J_1BDY_CTEDOCREF-NFMONTH, sy-vline,
  WA_J_1BDY_CTEDOCREF-STCD1, sy-vline,
  WA_J_1BDY_CTEDOCREF-MODEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1BDY_CTEDOCREF 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_J_1BDY_CTEDOCREF 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_J_1BDY_CTEDOCREF INTO WA_J_1BDY_CTEDOCREF.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1BDY_CTEDOCREF-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BDY_CTEDOCREF-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CFOBR, internal->external for field NFCFOP
CALL FUNCTION 'CONVERSION_EXIT_CFOBR_OUTPUT'
  EXPORTING
    input =                      WA_J_1BDY_CTEDOCREF-NFCFOP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BDY_CTEDOCREF-NFCFOP.
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_J_1BDY_CTEDOCREF_STR, 
MANDT TYPE STRING,
DOCNUM TYPE STRING,
COUNTER TYPE STRING,
RFDOCNUM TYPE STRING,
LOGSYS TYPE STRING,
DOCVAL TYPE STRING,
REGIO TYPE STRING,
NFYEAR TYPE STRING,
NFMONTH TYPE STRING,
STCD1 TYPE STRING,
MODEL TYPE STRING,
SERIE TYPE STRING,
NFNUM9 TYPE STRING,
DOCNUM9 TYPE STRING,
CDV TYPE STRING,
NFMODEL TYPE STRING,
NFSERIES TYPE STRING,
NFNUM TYPE STRING,
NFDATE TYPE STRING,
NFICMS_BV TYPE STRING,
NFICMS_VAL TYPE STRING,
NFSTIC_BV TYPE STRING,
NFSTIC_VAL TYPE STRING,
NFNET_VAL TYPE STRING,
NFTOT_VAL TYPE STRING,
NFCFOP TYPE STRING,
NFBRGEW TYPE STRING,
NFE_TPEMIS TYPE STRING,
DOCNUM8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1BDY_CTEDOCREF_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_J_1BDY_CTEDOCREF_STR-MANDT sy-vline 
WA_J_1BDY_CTEDOCREF_STR-DOCNUM sy-vline 
WA_J_1BDY_CTEDOCREF_STR-COUNTER sy-vline 
WA_J_1BDY_CTEDOCREF_STR-RFDOCNUM sy-vline 
WA_J_1BDY_CTEDOCREF_STR-LOGSYS sy-vline 
WA_J_1BDY_CTEDOCREF_STR-DOCVAL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-REGIO sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFYEAR sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFMONTH sy-vline 
WA_J_1BDY_CTEDOCREF_STR-STCD1 sy-vline 
WA_J_1BDY_CTEDOCREF_STR-MODEL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-SERIE sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFNUM9 sy-vline 
WA_J_1BDY_CTEDOCREF_STR-DOCNUM9 sy-vline 
WA_J_1BDY_CTEDOCREF_STR-CDV sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFMODEL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFSERIES sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFNUM sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFDATE sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFICMS_BV sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFICMS_VAL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFSTIC_BV sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFSTIC_VAL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFNET_VAL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFTOT_VAL sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFCFOP sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFBRGEW sy-vline 
WA_J_1BDY_CTEDOCREF_STR-NFE_TPEMIS sy-vline 
WA_J_1BDY_CTEDOCREF_STR-DOCNUM8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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