ABAP Select data from SAP table EPROFASS_SCREEN_PROFHEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EPROFASS_SCREEN_PROFHEAD
*  INTO TABLE @DATA(IT_EPROFASS_SCREEN_PROFHEAD2).
*--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_EPROFASS_SCREEN_PROFHEAD INDEX 1 INTO DATA(WA_EPROFASS_SCREEN_PROFHEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EPROFASS_SCREEN_PROFHEAD>-PROFILE = 1.
<EPROFASS_SCREEN_PROFHEAD>-PROFTEXT = 1.
<EPROFASS_SCREEN_PROFHEAD>-SPARTE = 1.
<EPROFASS_SCREEN_PROFHEAD>-PROFTYPE = 1.
<EPROFASS_SCREEN_PROFHEAD>-PROFTYPETEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EPROFASS_SCREEN_PROFHEAD-PROFVALCAT, sy-vline,
  WA_EPROFASS_SCREEN_PROFHEAD-PROFVALCATTEXT, sy-vline,
  WA_EPROFASS_SCREEN_PROFHEAD-INTSIZEID, sy-vline,
  WA_EPROFASS_SCREEN_PROFHEAD-INTSIZE, sy-vline,
  WA_EPROFASS_SCREEN_PROFHEAD-INTSIZETEXT, sy-vline,
  WA_EPROFASS_SCREEN_PROFHEAD-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EPROFASS_SCREEN_PROFHEAD 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_EPROFASS_SCREEN_PROFHEAD 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_EPROFASS_SCREEN_PROFHEAD INTO WA_EPROFASS_SCREEN_PROFHEAD.


*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 LUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EPROFASS_SCREEN_PROFHEAD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EPROFASS_SCREEN_PROFHEAD-MEINS.
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_EPROFASS_SCREEN_PROFHEAD_STR, 
PROFILE TYPE STRING,
PROFTEXT TYPE STRING,
SPARTE TYPE STRING,
PROFTYPE TYPE STRING,
PROFTYPETEXT TYPE STRING,
PROFVALCAT TYPE STRING,
PROFVALCATTEXT TYPE STRING,
INTSIZEID TYPE STRING,
INTSIZE TYPE STRING,
INTSIZETEXT TYPE STRING,
MEINS TYPE STRING,
SPARTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EPROFASS_SCREEN_PROFHEAD_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_EPROFASS_SCREEN_PROFHEAD_STR-PROFILE sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-PROFTEXT sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-SPARTE sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-PROFTYPE sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-PROFTYPETEXT sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-PROFVALCAT sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-PROFVALCATTEXT sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-INTSIZEID sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-INTSIZE sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-INTSIZETEXT sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-MEINS sy-vline 
WA_EPROFASS_SCREEN_PROFHEAD_STR-SPARTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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