ABAP Select data from SAP table RELUPS_DI_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELUPS_DI_EXT
*  INTO TABLE @DATA(IT_RELUPS_DI_EXT2).
*--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_RELUPS_DI_EXT INDEX 1 INTO DATA(WA_RELUPS_DI_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RELUPS_DI_EXT>-ORG_INDEX = 1.
<RELUPS_DI_EXT>-AKTYP = 1.
<RELUPS_DI_EXT>-RLTP1 = 1.
<RELUPS_DI_EXT>-RLTP2 = 1.
<RELUPS_DI_EXT>-RLTP3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELUPS_DI_EXT-RLTP4, sy-vline,
  WA_RELUPS_DI_EXT-RLTP5, sy-vline,
  WA_RELUPS_DI_EXT-RLTP6, sy-vline,
  WA_RELUPS_DI_EXT-RLTP7, sy-vline,
  WA_RELUPS_DI_EXT-RLTP8, sy-vline,
  WA_RELUPS_DI_EXT-RLTP9, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELUPS_DI_EXT 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_RELUPS_DI_EXT 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_RELUPS_DI_EXT INTO WA_RELUPS_DI_EXT.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RELUPS_DI_EXT-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUPS_DI_EXT-PARTNR.
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_RELUPS_DI_EXT_STR, 
ORG_INDEX TYPE STRING,
AKTYP TYPE STRING,
RLTP1 TYPE STRING,
RLTP2 TYPE STRING,
RLTP3 TYPE STRING,
RLTP4 TYPE STRING,
RLTP5 TYPE STRING,
RLTP6 TYPE STRING,
RLTP7 TYPE STRING,
RLTP8 TYPE STRING,
RLTP9 TYPE STRING,
PSNO TYPE STRING,
PSTYPE TYPE STRING,
DESCR TYPE STRING,
DPLANNED TYPE STRING,
DEFFECT TYPE STRING,
DREVOKED TYPE STRING,
BERGRP TYPE STRING,
CHINDAO TYPE STRING,
INTRENOAO TYPE STRING,
AREATYPE TYPE STRING,
AREADESCR TYPE STRING,
AREAC TYPE STRING,
FEINS TYPE STRING,
DPLANNEDAO TYPE STRING,
DEFFECTAO TYPE STRING,
DREVOKEDAO TYPE STRING,
CHINDBP TYPE STRING,
PARTNR TYPE STRING,
ROLETYP TYPE STRING,
ROLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELUPS_DI_EXT_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_RELUPS_DI_EXT_STR-ORG_INDEX sy-vline 
WA_RELUPS_DI_EXT_STR-AKTYP sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP1 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP2 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP3 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP4 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP5 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP6 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP7 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP8 sy-vline 
WA_RELUPS_DI_EXT_STR-RLTP9 sy-vline 
WA_RELUPS_DI_EXT_STR-PSNO sy-vline 
WA_RELUPS_DI_EXT_STR-PSTYPE sy-vline 
WA_RELUPS_DI_EXT_STR-DESCR sy-vline 
WA_RELUPS_DI_EXT_STR-DPLANNED sy-vline 
WA_RELUPS_DI_EXT_STR-DEFFECT sy-vline 
WA_RELUPS_DI_EXT_STR-DREVOKED sy-vline 
WA_RELUPS_DI_EXT_STR-BERGRP sy-vline 
WA_RELUPS_DI_EXT_STR-CHINDAO sy-vline 
WA_RELUPS_DI_EXT_STR-INTRENOAO sy-vline 
WA_RELUPS_DI_EXT_STR-AREATYPE sy-vline 
WA_RELUPS_DI_EXT_STR-AREADESCR sy-vline 
WA_RELUPS_DI_EXT_STR-AREAC sy-vline 
WA_RELUPS_DI_EXT_STR-FEINS sy-vline 
WA_RELUPS_DI_EXT_STR-DPLANNEDAO sy-vline 
WA_RELUPS_DI_EXT_STR-DEFFECTAO sy-vline 
WA_RELUPS_DI_EXT_STR-DREVOKEDAO sy-vline 
WA_RELUPS_DI_EXT_STR-CHINDBP sy-vline 
WA_RELUPS_DI_EXT_STR-PARTNR sy-vline 
WA_RELUPS_DI_EXT_STR-ROLETYP sy-vline 
WA_RELUPS_DI_EXT_STR-ROLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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