ABAP Select data from SAP table EAM_S_ORDER_WFL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAM_S_ORDER_WFL
*  INTO TABLE @DATA(IT_EAM_S_ORDER_WFL2).
*--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_EAM_S_ORDER_WFL INDEX 1 INTO DATA(WA_EAM_S_ORDER_WFL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAM_S_ORDER_WFL>-MAINTENANCEORDER = 1.
<EAM_S_ORDER_WFL>-MAINTENANCEPLANNINGPLANT = 1.
<EAM_S_ORDER_WFL>-MAINTENANCEPLANNERGROUP = 1.
<EAM_S_ORDER_WFL>-MAINTENANCEORDERTYPE = 1.
<EAM_S_ORDER_WFL>-MAINWORKCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAM_S_ORDER_WFL-MAINWORKCENTERPLANT, sy-vline,
  WA_EAM_S_ORDER_WFL-COSTCENTER, sy-vline,
  WA_EAM_S_ORDER_WFL-WBSELEMENTINTERNALID, sy-vline,
  WA_EAM_S_ORDER_WFL-MAINTENANCEPLANT, sy-vline,
  WA_EAM_S_ORDER_WFL-MAINTENANCEACTIVITYTYPE, sy-vline,
  WA_EAM_S_ORDER_WFL-RESPONSIBLECOSTCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAM_S_ORDER_WFL 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_EAM_S_ORDER_WFL 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_EAM_S_ORDER_WFL INTO WA_EAM_S_ORDER_WFL.


*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 MAINTENANCEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORDER_WFL-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORDER_WFL-MAINTENANCEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORDER_WFL-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORDER_WFL-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORDER_WFL-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORDER_WFL-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RESPONSIBLECOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORDER_WFL-RESPONSIBLECOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORDER_WFL-RESPONSIBLECOSTCENTER.
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_EAM_S_ORDER_WFL_STR, 
MAINTENANCEORDER TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEORDERTYPE TYPE STRING,
MAINWORKCENTER TYPE STRING,
MAINWORKCENTERPLANT TYPE STRING,
COSTCENTER TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
RESPONSIBLECOSTCENTER TYPE STRING,
COMPANYCODE TYPE STRING,
MAINTORDBASICSTARTDATE TYPE STRING,
MAINTORDBASICSTARTTIME TYPE STRING,
MAINTENANCEORDERINTERNALID TYPE STRING,
ESTIMATEDCOST TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAM_S_ORDER_WFL_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_EAM_S_ORDER_WFL_STR-MAINTENANCEORDER sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEORDERTYPE sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINWORKCENTER sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINWORKCENTERPLANT sy-vline 
WA_EAM_S_ORDER_WFL_STR-COSTCENTER sy-vline 
WA_EAM_S_ORDER_WFL_STR-WBSELEMENTINTERNALID sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEPLANT sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEACTIVITYTYPE sy-vline 
WA_EAM_S_ORDER_WFL_STR-RESPONSIBLECOSTCENTER sy-vline 
WA_EAM_S_ORDER_WFL_STR-COMPANYCODE sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTORDBASICSTARTDATE sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTORDBASICSTARTTIME sy-vline 
WA_EAM_S_ORDER_WFL_STR-MAINTENANCEORDERINTERNALID sy-vline 
WA_EAM_S_ORDER_WFL_STR-ESTIMATEDCOST sy-vline 
WA_EAM_S_ORDER_WFL_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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