ABAP Select data from SAP table EPIC_S_FILE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EPIC_S_FILE
*  INTO TABLE @DATA(IT_EPIC_S_FILE2).
*--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_EPIC_S_FILE INDEX 1 INTO DATA(WA_EPIC_S_FILE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EPIC_S_FILE>-MANDT = 1.
<EPIC_S_FILE>-ZBUKR = 1.
<EPIC_S_FILE>-BANKS = 1.
<EPIC_S_FILE>-LAUFD = 1.
<EPIC_S_FILE>-LAUFI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EPIC_S_FILE-XVORL, sy-vline,
  WA_EPIC_S_FILE-DTKEY, sy-vline,
  WA_EPIC_S_FILE-LFDNR, sy-vline,
  WA_EPIC_S_FILE-WAERS, sy-vline,
  WA_EPIC_S_FILE-RBETR, sy-vline,
  WA_EPIC_S_FILE-RENUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EPIC_S_FILE 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_EPIC_S_FILE 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_EPIC_S_FILE INTO WA_EPIC_S_FILE.


*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 AC132, internal->external for field RBETR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_EPIC_S_FILE-RBETR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EPIC_S_FILE-RBETR.
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_EPIC_S_FILE_STR, 
MANDT TYPE STRING,
ZBUKR TYPE STRING,
BANKS TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
XVORL TYPE STRING,
DTKEY TYPE STRING,
LFDNR TYPE STRING,
WAERS TYPE STRING,
RBETR TYPE STRING,
RENUM TYPE STRING,
DTFOR TYPE STRING,
TSNAM TYPE STRING,
TSDAT TYPE STRING,
TSTIM TYPE STRING,
TSUSR TYPE STRING,
DWNAM TYPE STRING,
DWDAT TYPE STRING,
DWTIM TYPE STRING,
DWUSR TYPE STRING,
KADAT TYPE STRING,
KATIM TYPE STRING,
KAUSR TYPE STRING,
REPORT TYPE STRING,
FSNAM TYPE STRING,
USREX TYPE STRING,
EDINUM TYPE STRING,
GRPNO TYPE STRING,
DTTYP TYPE STRING,
GUID TYPE STRING,
SAPRL TYPE STRING,
CODEPAGE TYPE STRING,
STATUS TYPE STRING,
EPIC_STATUS_ICON TYPE STRING,
EPIC_STATUS_DESCR TYPE STRING,
EPIC_CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EPIC_S_FILE_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_EPIC_S_FILE_STR-MANDT sy-vline 
WA_EPIC_S_FILE_STR-ZBUKR sy-vline 
WA_EPIC_S_FILE_STR-BANKS sy-vline 
WA_EPIC_S_FILE_STR-LAUFD sy-vline 
WA_EPIC_S_FILE_STR-LAUFI sy-vline 
WA_EPIC_S_FILE_STR-XVORL sy-vline 
WA_EPIC_S_FILE_STR-DTKEY sy-vline 
WA_EPIC_S_FILE_STR-LFDNR sy-vline 
WA_EPIC_S_FILE_STR-WAERS sy-vline 
WA_EPIC_S_FILE_STR-RBETR sy-vline 
WA_EPIC_S_FILE_STR-RENUM sy-vline 
WA_EPIC_S_FILE_STR-DTFOR sy-vline 
WA_EPIC_S_FILE_STR-TSNAM sy-vline 
WA_EPIC_S_FILE_STR-TSDAT sy-vline 
WA_EPIC_S_FILE_STR-TSTIM sy-vline 
WA_EPIC_S_FILE_STR-TSUSR sy-vline 
WA_EPIC_S_FILE_STR-DWNAM sy-vline 
WA_EPIC_S_FILE_STR-DWDAT sy-vline 
WA_EPIC_S_FILE_STR-DWTIM sy-vline 
WA_EPIC_S_FILE_STR-DWUSR sy-vline 
WA_EPIC_S_FILE_STR-KADAT sy-vline 
WA_EPIC_S_FILE_STR-KATIM sy-vline 
WA_EPIC_S_FILE_STR-KAUSR sy-vline 
WA_EPIC_S_FILE_STR-REPORT sy-vline 
WA_EPIC_S_FILE_STR-FSNAM sy-vline 
WA_EPIC_S_FILE_STR-USREX sy-vline 
WA_EPIC_S_FILE_STR-EDINUM sy-vline 
WA_EPIC_S_FILE_STR-GRPNO sy-vline 
WA_EPIC_S_FILE_STR-DTTYP sy-vline 
WA_EPIC_S_FILE_STR-GUID sy-vline 
WA_EPIC_S_FILE_STR-SAPRL sy-vline 
WA_EPIC_S_FILE_STR-CODEPAGE sy-vline 
WA_EPIC_S_FILE_STR-STATUS sy-vline 
WA_EPIC_S_FILE_STR-EPIC_STATUS_ICON sy-vline 
WA_EPIC_S_FILE_STR-EPIC_STATUS_DESCR sy-vline 
WA_EPIC_S_FILE_STR-EPIC_CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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