ABAP Select data from SAP table FMPEP_VARIANTH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMPEP_VARIANTH
*  INTO TABLE @DATA(IT_FMPEP_VARIANTH2).
*--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_FMPEP_VARIANTH INDEX 1 INTO DATA(WA_FMPEP_VARIANTH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMPEP_VARIANTH>-CLIENT = 1.
<FMPEP_VARIANTH>-FM_AREA = 1.
<FMPEP_VARIANTH>-CRTUSER = 1.
<FMPEP_VARIANTH>-DOCNR = 1.
<FMPEP_VARIANTH>-PROCESS_UI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMPEP_VARIANTH-FISCYEAR, sy-vline,
  WA_FMPEP_VARIANTH-VERSION, sy-vline,
  WA_FMPEP_VARIANTH-CRTDATE, sy-vline,
  WA_FMPEP_VARIANTH-CRTTIME, sy-vline,
  WA_FMPEP_VARIANTH-DOCDATE, sy-vline,
  WA_FMPEP_VARIANTH-POSTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMPEP_VARIANTH 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_FMPEP_VARIANTH 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_FMPEP_VARIANTH INTO WA_FMPEP_VARIANTH.


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

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

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

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMPEP_VARIANTH-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPEP_VARIANTH-RCOMP.
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_FMPEP_VARIANTH_STR, 
CLIENT TYPE STRING,
FM_AREA TYPE STRING,
CRTUSER TYPE STRING,
DOCNR TYPE STRING,
PROCESS_UI TYPE STRING,
FISCYEAR TYPE STRING,
VERSION TYPE STRING,
CRTDATE TYPE STRING,
CRTTIME TYPE STRING,
DOCDATE TYPE STRING,
POSTDATE TYPE STRING,
RESPPERS TYPE STRING,
TEXT50 TYPE STRING,
TEXTNAME TYPE STRING,
LTXT_IND TYPE STRING,
LAYOUTVAR TYPE STRING,
DOCTYPE TYPE STRING,
COHORT TYPE STRING,
PUBLAW TYPE STRING,
LEGIS TYPE STRING,
TRANSFER_AGENCY TYPE STRING,
TRANSFER_ACCOUNT TYPE STRING,
RCOMP TYPE STRING,
BUDTYPE TYPE STRING,
VALTYPE TYPE STRING,
DISTKEY TYPE STRING,
ADDITIVE_MODE TYPE STRING,
DOCSTATE TYPE STRING,
CRTUSER_MASTER TYPE STRING,
SESSION_MASTER TYPE STRING,
ALV_LAYOUT TYPE STRING,
FMFGUS_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMPEP_VARIANTH_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_FMPEP_VARIANTH_STR-CLIENT sy-vline 
WA_FMPEP_VARIANTH_STR-FM_AREA sy-vline 
WA_FMPEP_VARIANTH_STR-CRTUSER sy-vline 
WA_FMPEP_VARIANTH_STR-DOCNR sy-vline 
WA_FMPEP_VARIANTH_STR-PROCESS_UI sy-vline 
WA_FMPEP_VARIANTH_STR-FISCYEAR sy-vline 
WA_FMPEP_VARIANTH_STR-VERSION sy-vline 
WA_FMPEP_VARIANTH_STR-CRTDATE sy-vline 
WA_FMPEP_VARIANTH_STR-CRTTIME sy-vline 
WA_FMPEP_VARIANTH_STR-DOCDATE sy-vline 
WA_FMPEP_VARIANTH_STR-POSTDATE sy-vline 
WA_FMPEP_VARIANTH_STR-RESPPERS sy-vline 
WA_FMPEP_VARIANTH_STR-TEXT50 sy-vline 
WA_FMPEP_VARIANTH_STR-TEXTNAME sy-vline 
WA_FMPEP_VARIANTH_STR-LTXT_IND sy-vline 
WA_FMPEP_VARIANTH_STR-LAYOUTVAR sy-vline 
WA_FMPEP_VARIANTH_STR-DOCTYPE sy-vline 
WA_FMPEP_VARIANTH_STR-COHORT sy-vline 
WA_FMPEP_VARIANTH_STR-PUBLAW sy-vline 
WA_FMPEP_VARIANTH_STR-LEGIS sy-vline 
WA_FMPEP_VARIANTH_STR-TRANSFER_AGENCY sy-vline 
WA_FMPEP_VARIANTH_STR-TRANSFER_ACCOUNT sy-vline 
WA_FMPEP_VARIANTH_STR-RCOMP sy-vline 
WA_FMPEP_VARIANTH_STR-BUDTYPE sy-vline 
WA_FMPEP_VARIANTH_STR-VALTYPE sy-vline 
WA_FMPEP_VARIANTH_STR-DISTKEY sy-vline 
WA_FMPEP_VARIANTH_STR-ADDITIVE_MODE sy-vline 
WA_FMPEP_VARIANTH_STR-DOCSTATE sy-vline 
WA_FMPEP_VARIANTH_STR-CRTUSER_MASTER sy-vline 
WA_FMPEP_VARIANTH_STR-SESSION_MASTER sy-vline 
WA_FMPEP_VARIANTH_STR-ALV_LAYOUT sy-vline 
WA_FMPEP_VARIANTH_STR-FMFGUS_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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