ABAP Select data from SAP table FMHIE_S_GRP_SEL_SCREEN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMHIE_S_GRP_SEL_SCREEN
*  INTO TABLE @DATA(IT_FMHIE_S_GRP_SEL_SCREEN2).
*--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_FMHIE_S_GRP_SEL_SCREEN INDEX 1 INTO DATA(WA_FMHIE_S_GRP_SEL_SCREEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMHIE_S_GRP_SEL_SCREEN>-FM_AREA = 1.
<FMHIE_S_GRP_SEL_SCREEN>-FISCYEAR = 1.
<FMHIE_S_GRP_SEL_SCREEN>-SETSUBCLS = 1.
<FMHIE_S_GRP_SEL_SCREEN>-EMPTY_FLD = 1.
<FMHIE_S_GRP_SEL_SCREEN>-FNDGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMHIE_S_GRP_SEL_SCREEN-FNDSTEPS, sy-vline,
  WA_FMHIE_S_GRP_SEL_SCREEN-FCEVAR, sy-vline,
  WA_FMHIE_S_GRP_SEL_SCREEN-FCEVSTEPS, sy-vline,
  WA_FMHIE_S_GRP_SEL_SCREEN-FCEGRP, sy-vline,
  WA_FMHIE_S_GRP_SEL_SCREEN-FCEGSTEPS, sy-vline,
  WA_FMHIE_S_GRP_SEL_SCREEN-FCIVAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMHIE_S_GRP_SEL_SCREEN 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_FMHIE_S_GRP_SEL_SCREEN 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_FMHIE_S_GRP_SEL_SCREEN INTO WA_FMHIE_S_GRP_SEL_SCREEN.


*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 GJAHR, internal->external for field FISCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMHIE_S_GRP_SEL_SCREEN-FISCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMHIE_S_GRP_SEL_SCREEN-FISCYEAR.
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_FMHIE_S_GRP_SEL_SCREEN_STR, 
FM_AREA TYPE STRING,
FISCYEAR TYPE STRING,
SETSUBCLS TYPE STRING,
EMPTY_FLD TYPE STRING,
FNDGRP TYPE STRING,
FNDSTEPS TYPE STRING,
FCEVAR TYPE STRING,
FCEVSTEPS TYPE STRING,
FCEGRP TYPE STRING,
FCEGSTEPS TYPE STRING,
FCIVAR TYPE STRING,
FCIVSTEPS TYPE STRING,
FCIGRP TYPE STRING,
FCIGSTEPS TYPE STRING,
FKTGRP TYPE STRING,
FKTSTEPS TYPE STRING,
MSRGRP TYPE STRING,
MSRSTEPS TYPE STRING,
USRGRP TYPE STRING,
USRSTEPS TYPE STRING,
BPDGRP TYPE STRING,
BPDSTEPS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMHIE_S_GRP_SEL_SCREEN_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_FMHIE_S_GRP_SEL_SCREEN_STR-FM_AREA sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FISCYEAR sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-SETSUBCLS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-EMPTY_FLD sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FNDGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FNDSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCEVAR sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCEVSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCEGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCEGSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCIVAR sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCIVSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCIGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FCIGSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FKTGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-FKTSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-MSRGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-MSRSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-USRGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-USRSTEPS sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-BPDGRP sy-vline 
WA_FMHIE_S_GRP_SEL_SCREEN_STR-BPDSTEPS sy-vline      INTO ld_text SEPARATED BY SPACE.

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