ABAP Select data from SAP table FMPP_REL_DOC 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 FMPP_REL_DOC 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 FMPP_REL_DOC. 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 FMPP_REL_DOC 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_FMPP_REL_DOC TYPE STANDARD TABLE OF FMPP_REL_DOC,
      WA_FMPP_REL_DOC TYPE FMPP_REL_DOC,
      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: <FMPP_REL_DOC> TYPE FMPP_REL_DOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMPP_REL_DOC
*  INTO TABLE @DATA(IT_FMPP_REL_DOC2).
*--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_FMPP_REL_DOC INDEX 1 INTO DATA(WA_FMPP_REL_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMPP_REL_DOC>-MANDT = 1.
<FMPP_REL_DOC>-BUKRS = 1.
<FMPP_REL_DOC>-BELNR = 1.
<FMPP_REL_DOC>-GJAHR = 1.
<FMPP_REL_DOC>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMPP_REL_DOC-REBZG, sy-vline,
  WA_FMPP_REL_DOC-REBZJ, sy-vline,
  WA_FMPP_REL_DOC-REBZZ, sy-vline,
  WA_FMPP_REL_DOC-REBZT, sy-vline,
  WA_FMPP_REL_DOC-BSTAT, sy-vline,
  WA_FMPP_REL_DOC-DMBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMPP_REL_DOC 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_FMPP_REL_DOC 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_FMPP_REL_DOC INTO WA_FMPP_REL_DOC.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMPP_REL_DOC-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP_REL_DOC-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field REBZJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMPP_REL_DOC-REBZJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP_REL_DOC-REBZJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FMPP_REL_DOC-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP_REL_DOC-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FMPP_REL_DOC-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP_REL_DOC-WRBTR.
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_FMPP_REL_DOC_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
REBZZ TYPE STRING,
REBZT TYPE STRING,
BSTAT TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
ZLSPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMPP_REL_DOC_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_FMPP_REL_DOC_STR-MANDT sy-vline 
WA_FMPP_REL_DOC_STR-BUKRS sy-vline 
WA_FMPP_REL_DOC_STR-BELNR sy-vline 
WA_FMPP_REL_DOC_STR-GJAHR sy-vline 
WA_FMPP_REL_DOC_STR-BUZEI sy-vline 
WA_FMPP_REL_DOC_STR-REBZG sy-vline 
WA_FMPP_REL_DOC_STR-REBZJ sy-vline 
WA_FMPP_REL_DOC_STR-REBZZ sy-vline 
WA_FMPP_REL_DOC_STR-REBZT sy-vline 
WA_FMPP_REL_DOC_STR-BSTAT sy-vline 
WA_FMPP_REL_DOC_STR-DMBTR sy-vline 
WA_FMPP_REL_DOC_STR-HWAER sy-vline 
WA_FMPP_REL_DOC_STR-WRBTR sy-vline 
WA_FMPP_REL_DOC_STR-WAERS sy-vline 
WA_FMPP_REL_DOC_STR-ZLSPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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