ABAP Select data from SAP table EUI_AUTO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EUI_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 EUI_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 EUI_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_EUI_AUTO TYPE STANDARD TABLE OF EUI_AUTO,
      WA_EUI_AUTO TYPE EUI_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: <EUI_AUTO> TYPE EUI_AUTO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EUI_AUTO
*  INTO TABLE @DATA(IT_EUI_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_EUI_AUTO INDEX 1 INTO DATA(WA_EUI_AUTO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EUI_AUTO>-CONTROL = 1.
<EUI_AUTO>-USE_EXTUI = 1.
<EUI_AUTO>-USE_HEADER = 1.
<EUI_AUTO>-USE_SOURCE = 1.
<EUI_AUTO>-USE_TECH_ANLAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EUI_AUTO-USE_TECH_LZW, sy-vline,
  WA_EUI_AUTO-USE_DEREG_ANLAGE, sy-vline,
  WA_EUI_AUTO-USE_GRID, sy-vline,
  WA_EUI_AUTO-EXTUI, sy-vline,
  WA_EUI_AUTO-HEADER, sy-vline,
  WA_EUI_AUTO-UITYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EUI_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_EUI_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_EUI_AUTO INTO WA_EUI_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.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EUI_AUTO-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EUI_AUTO-VSTELLE.
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_EUI_AUTO_STR, 
CONTROL TYPE STRING,
USE_EXTUI TYPE STRING,
USE_HEADER TYPE STRING,
USE_SOURCE TYPE STRING,
USE_TECH_ANLAGE TYPE STRING,
USE_TECH_LZW TYPE STRING,
USE_DEREG_ANLAGE TYPE STRING,
USE_GRID TYPE STRING,
EXTUI TYPE STRING,
HEADER TYPE STRING,
UITYPE TYPE STRING,
EUIROLE_TECH TYPE STRING,
EUIROLE_DEREG TYPE STRING,
UITEXT TYPE STRING,
GRID_ID TYPE STRING,
VSTELLE TYPE STRING,
OUCONT TYPE STRING,
LOEVM TYPE STRING,
SOURCE TYPE STRING,
TECH_ANLAGE TYPE STRING,
TECH_LZW TYPE STRING,
DEREG_ANLAGE TYPE STRING,
GRID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EUI_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_EUI_AUTO_STR-CONTROL sy-vline 
WA_EUI_AUTO_STR-USE_EXTUI sy-vline 
WA_EUI_AUTO_STR-USE_HEADER sy-vline 
WA_EUI_AUTO_STR-USE_SOURCE sy-vline 
WA_EUI_AUTO_STR-USE_TECH_ANLAGE sy-vline 
WA_EUI_AUTO_STR-USE_TECH_LZW sy-vline 
WA_EUI_AUTO_STR-USE_DEREG_ANLAGE sy-vline 
WA_EUI_AUTO_STR-USE_GRID sy-vline 
WA_EUI_AUTO_STR-EXTUI sy-vline 
WA_EUI_AUTO_STR-HEADER sy-vline 
WA_EUI_AUTO_STR-UITYPE sy-vline 
WA_EUI_AUTO_STR-EUIROLE_TECH sy-vline 
WA_EUI_AUTO_STR-EUIROLE_DEREG sy-vline 
WA_EUI_AUTO_STR-UITEXT sy-vline 
WA_EUI_AUTO_STR-GRID_ID sy-vline 
WA_EUI_AUTO_STR-VSTELLE sy-vline 
WA_EUI_AUTO_STR-OUCONT sy-vline 
WA_EUI_AUTO_STR-LOEVM sy-vline 
WA_EUI_AUTO_STR-SOURCE sy-vline 
WA_EUI_AUTO_STR-TECH_ANLAGE sy-vline 
WA_EUI_AUTO_STR-TECH_LZW sy-vline 
WA_EUI_AUTO_STR-DEREG_ANLAGE sy-vline 
WA_EUI_AUTO_STR-GRID sy-vline      INTO ld_text SEPARATED BY SPACE.

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