ABAP Select data from SAP table J_3RFGTD_DYNPRO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RFGTD_DYNPRO 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_3RFGTD_DYNPRO. 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_3RFGTD_DYNPRO 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_3RFGTD_DYNPRO TYPE STANDARD TABLE OF J_3RFGTD_DYNPRO,
      WA_J_3RFGTD_DYNPRO TYPE J_3RFGTD_DYNPRO,
      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_3RFGTD_DYNPRO> TYPE J_3RFGTD_DYNPRO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RFGTD_DYNPRO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RFGTD_DYNPRO
  INTO TABLE IT_J_3RFGTD_DYNPRO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RFGTD_DYNPRO
*  INTO TABLE @DATA(IT_J_3RFGTD_DYNPRO2).
*--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_3RFGTD_DYNPRO INDEX 1 INTO DATA(WA_J_3RFGTD_DYNPRO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RFGTD_DYNPRO ASSIGNING <J_3RFGTD_DYNPRO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RFGTD_DYNPRO>-ACTION = 1.
<J_3RFGTD_DYNPRO>-REFDOC = 1.
<J_3RFGTD_DYNPRO>-ORDERNUM = 1.
<J_3RFGTD_DYNPRO>-ORDERPOS = 1.
<J_3RFGTD_DYNPRO>-INDELNUM = 1.

ENDLOOP.

LOOP AT IT_J_3RFGTD_DYNPRO INTO WA_J_3RFGTD_DYNPRO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RFGTD_DYNPRO-INDELPOS, sy-vline,
  WA_J_3RFGTD_DYNPRO-MMDOCNUM, sy-vline,
  WA_J_3RFGTD_DYNPRO-MMDOCJAHR, sy-vline,
  WA_J_3RFGTD_DYNPRO-MMDOCPOS, sy-vline,
  WA_J_3RFGTD_DYNPRO-BILLREF, sy-vline,
  WA_J_3RFGTD_DYNPRO-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RFGTD_DYNPRO 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_3RFGTD_DYNPRO 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_3RFGTD_DYNPRO INTO WA_J_3RFGTD_DYNPRO.


*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 ORDERNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-ORDERNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-ORDERNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INDELNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-INDELNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-INDELNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MMDOCNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-MMDOCNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-MMDOCNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MMDOCJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-MMDOCJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-MMDOCJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-BILLREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-BILLREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_DYNPRO-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_DYNPRO-LIFNR.
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_3RFGTD_DYNPRO_STR, 
ACTION TYPE STRING,
REFDOC TYPE STRING,
ORDERNUM TYPE STRING,
ORDERPOS TYPE STRING,
INDELNUM TYPE STRING,
INDELPOS TYPE STRING,
MMDOCNUM TYPE STRING,
MMDOCJAHR TYPE STRING,
MMDOCPOS TYPE STRING,
BILLREF TYPE STRING,
BUKRS TYPE STRING,
LIFNR TYPE STRING,
GTDTYPE TYPE STRING,
CUSTOMS TYPE STRING,
GTDDATE TYPE STRING,
GTDNUMBER TYPE STRING,
ISSUEDAT TYPE STRING,
STATE TYPE STRING,
USED TYPE STRING,
MAKTX TYPE STRING,
LIFNRNAME TYPE STRING,
BUTXT TYPE STRING,
FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RFGTD_DYNPRO_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_3RFGTD_DYNPRO_STR-ACTION sy-vline 
WA_J_3RFGTD_DYNPRO_STR-REFDOC sy-vline 
WA_J_3RFGTD_DYNPRO_STR-ORDERNUM sy-vline 
WA_J_3RFGTD_DYNPRO_STR-ORDERPOS sy-vline 
WA_J_3RFGTD_DYNPRO_STR-INDELNUM sy-vline 
WA_J_3RFGTD_DYNPRO_STR-INDELPOS sy-vline 
WA_J_3RFGTD_DYNPRO_STR-MMDOCNUM sy-vline 
WA_J_3RFGTD_DYNPRO_STR-MMDOCJAHR sy-vline 
WA_J_3RFGTD_DYNPRO_STR-MMDOCPOS sy-vline 
WA_J_3RFGTD_DYNPRO_STR-BILLREF sy-vline 
WA_J_3RFGTD_DYNPRO_STR-BUKRS sy-vline 
WA_J_3RFGTD_DYNPRO_STR-LIFNR sy-vline 
WA_J_3RFGTD_DYNPRO_STR-GTDTYPE sy-vline 
WA_J_3RFGTD_DYNPRO_STR-CUSTOMS sy-vline 
WA_J_3RFGTD_DYNPRO_STR-GTDDATE sy-vline 
WA_J_3RFGTD_DYNPRO_STR-GTDNUMBER sy-vline 
WA_J_3RFGTD_DYNPRO_STR-ISSUEDAT sy-vline 
WA_J_3RFGTD_DYNPRO_STR-STATE sy-vline 
WA_J_3RFGTD_DYNPRO_STR-USED sy-vline 
WA_J_3RFGTD_DYNPRO_STR-MAKTX sy-vline 
WA_J_3RFGTD_DYNPRO_STR-LIFNRNAME sy-vline 
WA_J_3RFGTD_DYNPRO_STR-BUTXT sy-vline 
WA_J_3RFGTD_DYNPRO_STR-FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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