ABAP Select data from SAP table /ISDFPS/E1KOMGP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/E1KOMGP 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 /ISDFPS/E1KOMGP. 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 /ISDFPS/E1KOMGP 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_/ISDFPS/E1KOMGP TYPE STANDARD TABLE OF /ISDFPS/E1KOMGP,
      WA_/ISDFPS/E1KOMGP TYPE /ISDFPS/E1KOMGP,
      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: </ISDFPS/E1KOMGP> TYPE /ISDFPS/E1KOMGP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/E1KOMGP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/E1KOMGP
  INTO TABLE IT_/ISDFPS/E1KOMGP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/E1KOMGP
*  INTO TABLE @DATA(IT_/ISDFPS/E1KOMGP2).
*--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_/ISDFPS/E1KOMGP INDEX 1 INTO DATA(WA_/ISDFPS/E1KOMGP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/E1KOMGP ASSIGNING </ISDFPS/E1KOMGP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/E1KOMGP>-WERKS = 1.
</ISDFPS/E1KOMGP>-MATNR = 1.
</ISDFPS/E1KOMGP>-ABRVW = 1.
</ISDFPS/E1KOMGP>-KUNWE = 1.
</ISDFPS/E1KOMGP>-ABLAD = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/E1KOMGP INTO WA_/ISDFPS/E1KOMGP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/E1KOMGP-LIFNR, sy-vline,
  WA_/ISDFPS/E1KOMGP-ROUTE, sy-vline,
  WA_/ISDFPS/E1KOMGP-KUNAG, sy-vline,
  WA_/ISDFPS/E1KOMGP-VERSART, sy-vline,
  WA_/ISDFPS/E1KOMGP-VSTEL, sy-vline,
  WA_/ISDFPS/E1KOMGP-LGORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/E1KOMGP 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_/ISDFPS/E1KOMGP 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_/ISDFPS/E1KOMGP INTO WA_/ISDFPS/E1KOMGP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/ISDFPS/E1KOMGP_STR, 
WERKS TYPE STRING,
MATNR TYPE STRING,
ABRVW TYPE STRING,
KUNWE TYPE STRING,
ABLAD TYPE STRING,
LIFNR TYPE STRING,
ROUTE TYPE STRING,
KUNAG TYPE STRING,
VERSART TYPE STRING,
VSTEL TYPE STRING,
LGORT TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGBZO TYPE STRING,
LGTOR TYPE STRING,
PWLIF TYPE STRING,
PRVBE TYPE STRING,
TRAGR TYPE STRING,
LADGR TYPE STRING,
RESWK TYPE STRING,
RMATP TYPE STRING,
BERID TYPE STRING,
KNUMH TYPE STRING,
KSCHL TYPE STRING,
KOTAB TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
KAPPL TYPE STRING,
MATNR_LONG TYPE STRING,
RMATP_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/E1KOMGP_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_/ISDFPS/E1KOMGP_STR-WERKS sy-vline 
WA_/ISDFPS/E1KOMGP_STR-MATNR sy-vline 
WA_/ISDFPS/E1KOMGP_STR-ABRVW sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KUNWE sy-vline 
WA_/ISDFPS/E1KOMGP_STR-ABLAD sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LIFNR sy-vline 
WA_/ISDFPS/E1KOMGP_STR-ROUTE sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KUNAG sy-vline 
WA_/ISDFPS/E1KOMGP_STR-VERSART sy-vline 
WA_/ISDFPS/E1KOMGP_STR-VSTEL sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LGORT sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LGNUM sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LGTYP sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LGBZO sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LGTOR sy-vline 
WA_/ISDFPS/E1KOMGP_STR-PWLIF sy-vline 
WA_/ISDFPS/E1KOMGP_STR-PRVBE sy-vline 
WA_/ISDFPS/E1KOMGP_STR-TRAGR sy-vline 
WA_/ISDFPS/E1KOMGP_STR-LADGR sy-vline 
WA_/ISDFPS/E1KOMGP_STR-RESWK sy-vline 
WA_/ISDFPS/E1KOMGP_STR-RMATP sy-vline 
WA_/ISDFPS/E1KOMGP_STR-BERID sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KNUMH sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KSCHL sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KOTAB sy-vline 
WA_/ISDFPS/E1KOMGP_STR-DATBI sy-vline 
WA_/ISDFPS/E1KOMGP_STR-DATAB sy-vline 
WA_/ISDFPS/E1KOMGP_STR-KAPPL sy-vline 
WA_/ISDFPS/E1KOMGP_STR-MATNR_LONG sy-vline 
WA_/ISDFPS/E1KOMGP_STR-RMATP_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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