ABAP Select data from SAP table REOR_OFFER_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REOR_OFFER_S
*  INTO TABLE @DATA(IT_REOR_OFFER_S2).
*--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_REOR_OFFER_S INDEX 1 INTO DATA(WA_REOR_OFFER_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REOR_OFFER_S>-MANDT = 1.
<REOR_OFFER_S>-INTRENO = 1.
<REOR_OFFER_S>-OFID = 1.
<REOR_OFFER_S>-OBJNR = 1.
<REOR_OFFER_S>-CREATIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REOR_OFFER_S-RERF, sy-vline,
  WA_REOR_OFFER_S-DERF, sy-vline,
  WA_REOR_OFFER_S-TERF, sy-vline,
  WA_REOR_OFFER_S-REHER, sy-vline,
  WA_REOR_OFFER_S-RBEAR, sy-vline,
  WA_REOR_OFFER_S-DBEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REOR_OFFER_S 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_REOR_OFFER_S 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_REOR_OFFER_S INTO WA_REOR_OFFER_S.


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

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

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

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

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

*Conversion exit SWENR, internal->external for field BENOCN
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REOR_OFFER_S-BENOCN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REOR_OFFER_S-BENOCN.
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_REOR_OFFER_S_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
OFID TYPE STRING,
OBJNR TYPE STRING,
CREATIONTYPE TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
RESPONSIBLE TYPE STRING,
USEREXCLUSIVE TYPE STRING,
AUTHGRP TYPE STRING,
BUKRS TYPE STRING,
RECNTYPE TYPE STRING,
OFCNBEG TYPE STRING,
OFCNENDABS TYPE STRING,
XOF TYPE STRING,
OFREJDATE TYPE STRING,
RECNNR TYPE STRING,
RECNTLAW TYPE STRING,
RECNBUKRSCOLLECT TYPE STRING,
RECNNRCOLLECT TYPE STRING,
RECNCNCURR TYPE STRING,
INDUSTRY TYPE STRING,
SRRELEVANT TYPE STRING,
DPTARGETTYPE TYPE STRING,
OFRESTO TYPE STRING,
RECNDAT TYPE STRING,
RECNDPO TYPE STRING,
RECNEND1ST TYPE STRING,
BENOCN TYPE STRING,
POSSDATEFROM TYPE STRING,
POSSDATETO TYPE STRING,
XBUKRS TYPE STRING,
XRECNTYPE TYPE STRING,
XTENANCYLAW TYPE STRING,
XCOLLECT TYPE STRING,
XAUTHGRP TYPE STRING,
XINDUSTRY TYPE STRING,
RECNTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REOR_OFFER_S_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_REOR_OFFER_S_STR-MANDT sy-vline 
WA_REOR_OFFER_S_STR-INTRENO sy-vline 
WA_REOR_OFFER_S_STR-OFID sy-vline 
WA_REOR_OFFER_S_STR-OBJNR sy-vline 
WA_REOR_OFFER_S_STR-CREATIONTYPE sy-vline 
WA_REOR_OFFER_S_STR-RERF sy-vline 
WA_REOR_OFFER_S_STR-DERF sy-vline 
WA_REOR_OFFER_S_STR-TERF sy-vline 
WA_REOR_OFFER_S_STR-REHER sy-vline 
WA_REOR_OFFER_S_STR-RBEAR sy-vline 
WA_REOR_OFFER_S_STR-DBEAR sy-vline 
WA_REOR_OFFER_S_STR-TBEAR sy-vline 
WA_REOR_OFFER_S_STR-RBHER sy-vline 
WA_REOR_OFFER_S_STR-RESPONSIBLE sy-vline 
WA_REOR_OFFER_S_STR-USEREXCLUSIVE sy-vline 
WA_REOR_OFFER_S_STR-AUTHGRP sy-vline 
WA_REOR_OFFER_S_STR-BUKRS sy-vline 
WA_REOR_OFFER_S_STR-RECNTYPE sy-vline 
WA_REOR_OFFER_S_STR-OFCNBEG sy-vline 
WA_REOR_OFFER_S_STR-OFCNENDABS sy-vline 
WA_REOR_OFFER_S_STR-XOF sy-vline 
WA_REOR_OFFER_S_STR-OFREJDATE sy-vline 
WA_REOR_OFFER_S_STR-RECNNR sy-vline 
WA_REOR_OFFER_S_STR-RECNTLAW sy-vline 
WA_REOR_OFFER_S_STR-RECNBUKRSCOLLECT sy-vline 
WA_REOR_OFFER_S_STR-RECNNRCOLLECT sy-vline 
WA_REOR_OFFER_S_STR-RECNCNCURR sy-vline 
WA_REOR_OFFER_S_STR-INDUSTRY sy-vline 
WA_REOR_OFFER_S_STR-SRRELEVANT sy-vline 
WA_REOR_OFFER_S_STR-DPTARGETTYPE sy-vline 
WA_REOR_OFFER_S_STR-OFRESTO sy-vline 
WA_REOR_OFFER_S_STR-RECNDAT sy-vline 
WA_REOR_OFFER_S_STR-RECNDPO sy-vline 
WA_REOR_OFFER_S_STR-RECNEND1ST sy-vline 
WA_REOR_OFFER_S_STR-BENOCN sy-vline 
WA_REOR_OFFER_S_STR-POSSDATEFROM sy-vline 
WA_REOR_OFFER_S_STR-POSSDATETO sy-vline 
WA_REOR_OFFER_S_STR-XBUKRS sy-vline 
WA_REOR_OFFER_S_STR-XRECNTYPE sy-vline 
WA_REOR_OFFER_S_STR-XTENANCYLAW sy-vline 
WA_REOR_OFFER_S_STR-XCOLLECT sy-vline 
WA_REOR_OFFER_S_STR-XAUTHGRP sy-vline 
WA_REOR_OFFER_S_STR-XINDUSTRY sy-vline 
WA_REOR_OFFER_S_STR-RECNTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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