ABAP Select data from SAP table EREDEMPD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EREDEMPD
*  INTO TABLE @DATA(IT_EREDEMPD2).
*--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_EREDEMPD INDEX 1 INTO DATA(WA_EREDEMPD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EREDEMPD>-MANDT = 1.
<EREDEMPD>-LP_RDMNBR = 1.
<EREDEMPD>-PARTNER = 1.
<EREDEMPD>-VKONT = 1.
<EREDEMPD>-LP_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EREDEMPD-LP_RWRD, sy-vline,
  WA_EREDEMPD-LP_RDMPT, sy-vline,
  WA_EREDEMPD-LP_RDM_UNIT, sy-vline,
  WA_EREDEMPD-LP_RDMQTY, sy-vline,
  WA_EREDEMPD-LP_RDMSTAT, sy-vline,
  WA_EREDEMPD-LP_ISSUE_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EREDEMPD 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_EREDEMPD 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_EREDEMPD INTO WA_EREDEMPD.


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

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

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

*Conversion exit CUNIT, internal->external for field LP_RDM_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EREDEMPD-LP_RDM_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EREDEMPD-LP_RDM_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LP_SPONSOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EREDEMPD-LP_SPONSOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EREDEMPD-LP_SPONSOR.
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_EREDEMPD_STR, 
MANDT TYPE STRING,
LP_RDMNBR TYPE STRING,
PARTNER TYPE STRING,
VKONT TYPE STRING,
LP_CODE TYPE STRING,
LP_RWRD TYPE STRING,
LP_RDMPT TYPE STRING,
LP_RDM_UNIT TYPE STRING,
LP_RDMQTY TYPE STRING,
LP_RDMSTAT TYPE STRING,
LP_ISSUE_DATE TYPE STRING,
LP_PRT_DATE TYPE STRING,
LP_CANC_DATE TYPE STRING,
LP_CANC_RSN TYPE STRING,
LP_VOUEXP_DATE TYPE STRING,
LP_PRT_COUNT TYPE STRING,
LP_SPONSOR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
LP_SDATE TYPE STRING,
LP_EDATE TYPE STRING,
LP_TOTPT TYPE STRING,
PARTNAME TYPE STRING,
LPDESC TYPE STRING,
ACCNAME TYPE STRING,
LP_RWRDTT TYPE STRING,
LP_RDMSTATT TYPE STRING,
LP_CANC_RSNT TYPE STRING,
TABKEY TYPE STRING,
TABTITLE TYPE STRING,
TABTOTAL TYPE STRING,
SELECTED TYPE STRING,
TOTPT_TXT TYPE STRING,
PARA_SET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EREDEMPD_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_EREDEMPD_STR-MANDT sy-vline 
WA_EREDEMPD_STR-LP_RDMNBR sy-vline 
WA_EREDEMPD_STR-PARTNER sy-vline 
WA_EREDEMPD_STR-VKONT sy-vline 
WA_EREDEMPD_STR-LP_CODE sy-vline 
WA_EREDEMPD_STR-LP_RWRD sy-vline 
WA_EREDEMPD_STR-LP_RDMPT sy-vline 
WA_EREDEMPD_STR-LP_RDM_UNIT sy-vline 
WA_EREDEMPD_STR-LP_RDMQTY sy-vline 
WA_EREDEMPD_STR-LP_RDMSTAT sy-vline 
WA_EREDEMPD_STR-LP_ISSUE_DATE sy-vline 
WA_EREDEMPD_STR-LP_PRT_DATE sy-vline 
WA_EREDEMPD_STR-LP_CANC_DATE sy-vline 
WA_EREDEMPD_STR-LP_CANC_RSN sy-vline 
WA_EREDEMPD_STR-LP_VOUEXP_DATE sy-vline 
WA_EREDEMPD_STR-LP_PRT_COUNT sy-vline 
WA_EREDEMPD_STR-LP_SPONSOR sy-vline 
WA_EREDEMPD_STR-ERDAT sy-vline 
WA_EREDEMPD_STR-ERNAM sy-vline 
WA_EREDEMPD_STR-AEDAT sy-vline 
WA_EREDEMPD_STR-AENAM sy-vline 
WA_EREDEMPD_STR-BEGRU sy-vline 
WA_EREDEMPD_STR-LOEVM sy-vline 
WA_EREDEMPD_STR-LP_SDATE sy-vline 
WA_EREDEMPD_STR-LP_EDATE sy-vline 
WA_EREDEMPD_STR-LP_TOTPT sy-vline 
WA_EREDEMPD_STR-PARTNAME sy-vline 
WA_EREDEMPD_STR-LPDESC sy-vline 
WA_EREDEMPD_STR-ACCNAME sy-vline 
WA_EREDEMPD_STR-LP_RWRDTT sy-vline 
WA_EREDEMPD_STR-LP_RDMSTATT sy-vline 
WA_EREDEMPD_STR-LP_CANC_RSNT sy-vline 
WA_EREDEMPD_STR-TABKEY sy-vline 
WA_EREDEMPD_STR-TABTITLE sy-vline 
WA_EREDEMPD_STR-TABTOTAL sy-vline 
WA_EREDEMPD_STR-SELECTED sy-vline 
WA_EREDEMPD_STR-TOTPT_TXT sy-vline 
WA_EREDEMPD_STR-PARA_SET sy-vline      INTO ld_text SEPARATED BY SPACE.

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