ABAP Select data from SAP table EMG_SAP_DEVTYP_AUTO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMG_SAP_DEVTYP_AUTO
*  INTO TABLE @DATA(IT_EMG_SAP_DEVTYP_AUTO2).
*--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_EMG_SAP_DEVTYP_AUTO INDEX 1 INTO DATA(WA_EMG_SAP_DEVTYP_AUTO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMG_SAP_DEVTYP_AUTO>-DATA = 1.
<EMG_SAP_DEVTYP_AUTO>-TCODE = 1.
<EMG_SAP_DEVTYP_AUTO>-GERTYP = 1.
<EMG_SAP_DEVTYP_AUTO>-SPARTE = 1.
<EMG_SAP_DEVTYP_AUTO>-BAUFORM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMG_SAP_DEVTYP_AUTO-BAUTXT, sy-vline,
  WA_EMG_SAP_DEVTYP_AUTO-GRPMATNR, sy-vline,
  WA_EMG_SAP_DEVTYP_AUTO-FUNKLAS, sy-vline,
  WA_EMG_SAP_DEVTYP_AUTO-BAUKLAS, sy-vline,
  WA_EMG_SAP_DEVTYP_AUTO-PREISKLA, sy-vline,
  WA_EMG_SAP_DEVTYP_AUTO-WGRUPPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMG_SAP_DEVTYP_AUTO 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_EMG_SAP_DEVTYP_AUTO 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_EMG_SAP_DEVTYP_AUTO INTO WA_EMG_SAP_DEVTYP_AUTO.


*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_EMG_SAP_DEVTYP_AUTO_STR, 
DATA TYPE STRING,
TCODE TYPE STRING,
GERTYP TYPE STRING,
SPARTE TYPE STRING,
BAUFORM TYPE STRING,
BAUTXT TYPE STRING,
GRPMATNR TYPE STRING,
FUNKLAS TYPE STRING,
BAUKLAS TYPE STRING,
PREISKLA TYPE STRING,
WGRUPPE TYPE STRING,
PTBNUM TYPE STRING,
DVGWNUM TYPE STRING,
ZWGRUPPE TYPE STRING,
EAGRUPPE TYPE STRING,
NENNBEL TYPE STRING,
MESSART TYPE STRING,
UEBERVER TYPE STRING,
ZSPANNP TYPE STRING,
ZSPANNS TYPE STRING,
ZSTROMP TYPE STRING,
ZSTROMS TYPE STRING,
BGLKZ TYPE STRING,
VLZEITN TYPE STRING,
VLZEITT TYPE STRING,
VLKZBAU TYPE STRING,
VLZEITTI TYPE STRING,
BGLNETZ TYPE STRING,
ORDER_CODE TYPE STRING,
NOTIF_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMG_SAP_DEVTYP_AUTO_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_EMG_SAP_DEVTYP_AUTO_STR-DATA sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-TCODE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-GERTYP sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-SPARTE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-BAUFORM sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-BAUTXT sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-GRPMATNR sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-FUNKLAS sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-BAUKLAS sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-PREISKLA sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-WGRUPPE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-PTBNUM sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-DVGWNUM sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ZWGRUPPE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-EAGRUPPE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-NENNBEL sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-MESSART sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-UEBERVER sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ZSPANNP sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ZSPANNS sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ZSTROMP sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ZSTROMS sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-BGLKZ sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-VLZEITN sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-VLZEITT sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-VLKZBAU sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-VLZEITTI sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-BGLNETZ sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-ORDER_CODE sy-vline 
WA_EMG_SAP_DEVTYP_AUTO_STR-NOTIF_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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