ABAP Select data from SAP table ECM_ORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECM_ORD
*  INTO TABLE @DATA(IT_ECM_ORD2).
*--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_ECM_ORD INDEX 1 INTO DATA(WA_ECM_ORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECM_ORD>-MANDT = 1.
<ECM_ORD>-GUID_ECM = 1.
<ECM_ORD>-AENNR = 1.
<ECM_ORD>-AETYP = 1.
<ECM_ORD>-ECMGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECM_ORD-AEUSER, sy-vline,
  WA_ECM_ORD-LVORM, sy-vline,
  WA_ECM_ORD-ENDDAT, sy-vline,
  WA_ECM_ORD-AEKND, sy-vline,
  WA_ECM_ORD-CONT1, sy-vline,
  WA_ECM_ORD-LOGSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECM_ORD 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_ECM_ORD 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_ECM_ORD INTO WA_ECM_ORD.


*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 ORDER, internal->external for field GUID_ECM
CALL FUNCTION 'CONVERSION_EXIT_ORDER_OUTPUT'
  EXPORTING
    input =                      WA_ECM_ORD-GUID_ECM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECM_ORD-GUID_ECM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ECM_ORD-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECM_ORD-LOGSYS.
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_ECM_ORD_STR, 
MANDT TYPE STRING,
GUID_ECM TYPE STRING,
AENNR TYPE STRING,
AETYP TYPE STRING,
ECMGROUP TYPE STRING,
AEUSER TYPE STRING,
LVORM TYPE STRING,
ENDDAT TYPE STRING,
AEKND TYPE STRING,
CONT1 TYPE STRING,
LOGSYS TYPE STRING,
LULIST TYPE STRING,
LAREA TYPE STRING,
ECMPRIO TYPE STRING,
TIMEREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECM_ORD_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_ECM_ORD_STR-MANDT sy-vline 
WA_ECM_ORD_STR-GUID_ECM sy-vline 
WA_ECM_ORD_STR-AENNR sy-vline 
WA_ECM_ORD_STR-AETYP sy-vline 
WA_ECM_ORD_STR-ECMGROUP sy-vline 
WA_ECM_ORD_STR-AEUSER sy-vline 
WA_ECM_ORD_STR-LVORM sy-vline 
WA_ECM_ORD_STR-ENDDAT sy-vline 
WA_ECM_ORD_STR-AEKND sy-vline 
WA_ECM_ORD_STR-CONT1 sy-vline 
WA_ECM_ORD_STR-LOGSYS sy-vline 
WA_ECM_ORD_STR-LULIST sy-vline 
WA_ECM_ORD_STR-LAREA sy-vline 
WA_ECM_ORD_STR-ECMPRIO sy-vline 
WA_ECM_ORD_STR-TIMEREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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