ABAP Select data from SAP table REEX_DOC_BY_CC_INC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEX_DOC_BY_CC_INC
*  INTO TABLE @DATA(IT_REEX_DOC_BY_CC_INC2).
*--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_REEX_DOC_BY_CC_INC INDEX 1 INTO DATA(WA_REEX_DOC_BY_CC_INC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEX_DOC_BY_CC_INC>-VALIDFROM = 1.
<REEX_DOC_BY_CC_INC>-VALIDTO = 1.
<REEX_DOC_BY_CC_INC>-XSSCKEY = 1.
<REEX_DOC_BY_CC_INC>-XSU = 1.
<REEX_DOC_BY_CC_INC>-KSTGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEX_DOC_BY_CC_INC-XKSTGRP, sy-vline,
  WA_REEX_DOC_BY_CC_INC-SKABRF, sy-vline,
  WA_REEX_DOC_BY_CC_INC-XMBEZ, sy-vline,
  WA_REEX_DOC_BY_CC_INC-XKBEZ, sy-vline,
  WA_REEX_DOC_BY_CC_INC-ABRKDNR, sy-vline,
  WA_REEX_DOC_BY_CC_INC-EXTERNAL_OBJID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEX_DOC_BY_CC_INC 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_REEX_DOC_BY_CC_INC 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_REEX_DOC_BY_CC_INC INTO WA_REEX_DOC_BY_CC_INC.


*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 REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REEX_DOC_BY_CC_INC-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_DOC_BY_CC_INC-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SCKEYGRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEX_DOC_BY_CC_INC-SCKEYGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_DOC_BY_CC_INC-SCKEYGRP.
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_REEX_DOC_BY_CC_INC_STR, 
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
XSSCKEY TYPE STRING,
XSU TYPE STRING,
KSTGRP TYPE STRING,
XKSTGRP TYPE STRING,
SKABRF TYPE STRING,
XMBEZ TYPE STRING,
XKBEZ TYPE STRING,
ABRKDNR TYPE STRING,
EXTERNAL_OBJID TYPE STRING,
SKSTSCHL TYPE STRING,
KBRART TYPE STRING,
XSKSTSCHL TYPE STRING,
XSBRART TYPE STRING,
IDENTPARENTSU TYPE STRING,
HASCOSTOBJECT TYPE STRING,
EXCHANGETYPE TYPE STRING,
COST_INDICATOR TYPE STRING,
IS_APPORTIONABLE TYPE STRING,
ONLY_COMMERCIAL TYPE STRING,
USE_HEATDAYS TYPE STRING,
DIRECTCOSTID TYPE STRING,
CREDITGLACCSYMB TYPE STRING,
SCKEYPROCIND TYPE STRING,
SCKEYGRP TYPE STRING,
XSCKEYGRP TYPE STRING,
PAROB1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEX_DOC_BY_CC_INC_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_REEX_DOC_BY_CC_INC_STR-VALIDFROM sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-VALIDTO sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XSSCKEY sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XSU sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-KSTGRP sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XKSTGRP sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-SKABRF sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XMBEZ sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XKBEZ sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-ABRKDNR sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-EXTERNAL_OBJID sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-SKSTSCHL sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-KBRART sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XSKSTSCHL sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XSBRART sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-IDENTPARENTSU sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-HASCOSTOBJECT sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-EXCHANGETYPE sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-COST_INDICATOR sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-IS_APPORTIONABLE sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-ONLY_COMMERCIAL sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-USE_HEATDAYS sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-DIRECTCOSTID sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-CREDITGLACCSYMB sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-SCKEYPROCIND sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-SCKEYGRP sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-XSCKEYGRP sy-vline 
WA_REEX_DOC_BY_CC_INC_STR-PAROB1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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