ABAP Select data from SAP table RN2ET_DIA_JANEIN 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 RN2ET_DIA_JANEIN 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 RN2ET_DIA_JANEIN. 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 RN2ET_DIA_JANEIN 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_RN2ET_DIA_JANEIN TYPE STANDARD TABLE OF RN2ET_DIA_JANEIN,
      WA_RN2ET_DIA_JANEIN TYPE RN2ET_DIA_JANEIN,
      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: <RN2ET_DIA_JANEIN> TYPE RN2ET_DIA_JANEIN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2ET_DIA_JANEIN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2ET_DIA_JANEIN
  INTO TABLE IT_RN2ET_DIA_JANEIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2ET_DIA_JANEIN
*  INTO TABLE @DATA(IT_RN2ET_DIA_JANEIN2).
*--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_RN2ET_DIA_JANEIN INDEX 1 INTO DATA(WA_RN2ET_DIA_JANEIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2ET_DIA_JANEIN ASSIGNING <RN2ET_DIA_JANEIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2ET_DIA_JANEIN>-DYNPR = 1.
<RN2ET_DIA_JANEIN>-OBLIG = 1.
<RN2ET_DIA_JANEIN>-DEEA = 1.
<RN2ET_DIA_JANEIN>-NOBEZ = 1.
<RN2ET_DIA_JANEIN>-GRAPH = 1.

ENDLOOP.

LOOP AT IT_RN2ET_DIA_JANEIN INTO WA_RN2ET_DIA_JANEIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2ET_DIA_JANEIN-BREITE, sy-vline,
  WA_RN2ET_DIA_JANEIN-TXTLEN, sy-vline,
  WA_RN2ET_DIA_JANEIN-SCRY, sy-vline,
  WA_RN2ET_DIA_JANEIN-SCRX, sy-vline,
  WA_RN2ET_DIA_JANEIN-SCRYBEZ, sy-vline,
  WA_RN2ET_DIA_JANEIN-SCRXBEZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2ET_DIA_JANEIN 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_RN2ET_DIA_JANEIN 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_RN2ET_DIA_JANEIN INTO WA_RN2ET_DIA_JANEIN.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_RN2ET_DIA_JANEIN_STR, 
DYNPR TYPE STRING,
OBLIG TYPE STRING,
DEEA TYPE STRING,
NOBEZ TYPE STRING,
GRAPH TYPE STRING,
BREITE TYPE STRING,
TXTLEN TYPE STRING,
SCRY TYPE STRING,
SCRX TYPE STRING,
SCRYBEZ TYPE STRING,
SCRXBEZ TYPE STRING,
DYNFNLANG TYPE STRING,
DYNNUM TYPE STRING,
DIOPT6 TYPE STRING,
DETEXT TYPE STRING,
OUTPUTLEN TYPE STRING,
DIOPT1 TYPE STRING,
ALL_DYN TYPE STRING,
WREQUEST TYPE STRING,
FUNCTION1 TYPE STRING,
FKTPUSH TYPE STRING,
MODPUSH TYPE STRING,
ALIAS_CRD TYPE STRING,
ETID_CARD TYPE STRING,
FKTF4_GSD TYPE STRING,
FKTCV_GSD TYPE STRING,
FKTMODIF_GSD TYPE STRING,
FKTPUSH_GSD TYPE STRING,
FKTDIS_GSD TYPE STRING,
FKTF4_NO TYPE STRING,
FKTCV_NO TYPE STRING,
FKTMODIF_NO TYPE STRING,
FKTPUSH_NO TYPE STRING,
FKTDIS_NO TYPE STRING,
FKTF4_GSD_NO TYPE STRING,
FKTCV_GSD_NO TYPE STRING,
FKTMODIF_GSD_NO TYPE STRING,
FKTPUSH_GSD_NO TYPE STRING,
FKTDIS_GSD_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2ET_DIA_JANEIN_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_RN2ET_DIA_JANEIN_STR-DYNPR sy-vline 
WA_RN2ET_DIA_JANEIN_STR-OBLIG sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DEEA sy-vline 
WA_RN2ET_DIA_JANEIN_STR-NOBEZ sy-vline 
WA_RN2ET_DIA_JANEIN_STR-GRAPH sy-vline 
WA_RN2ET_DIA_JANEIN_STR-BREITE sy-vline 
WA_RN2ET_DIA_JANEIN_STR-TXTLEN sy-vline 
WA_RN2ET_DIA_JANEIN_STR-SCRY sy-vline 
WA_RN2ET_DIA_JANEIN_STR-SCRX sy-vline 
WA_RN2ET_DIA_JANEIN_STR-SCRYBEZ sy-vline 
WA_RN2ET_DIA_JANEIN_STR-SCRXBEZ sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DYNFNLANG sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DYNNUM sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DIOPT6 sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DETEXT sy-vline 
WA_RN2ET_DIA_JANEIN_STR-OUTPUTLEN sy-vline 
WA_RN2ET_DIA_JANEIN_STR-DIOPT1 sy-vline 
WA_RN2ET_DIA_JANEIN_STR-ALL_DYN sy-vline 
WA_RN2ET_DIA_JANEIN_STR-WREQUEST sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FUNCTION1 sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTPUSH sy-vline 
WA_RN2ET_DIA_JANEIN_STR-MODPUSH sy-vline 
WA_RN2ET_DIA_JANEIN_STR-ALIAS_CRD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-ETID_CARD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTF4_GSD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTCV_GSD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTMODIF_GSD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTPUSH_GSD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTDIS_GSD sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTF4_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTCV_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTMODIF_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTPUSH_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTDIS_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTF4_GSD_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTCV_GSD_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTMODIF_GSD_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTPUSH_GSD_NO sy-vline 
WA_RN2ET_DIA_JANEIN_STR-FKTDIS_GSD_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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