ABAP Select data from SAP table EAM_S_ORD_MCONF_IMPORT 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_ORD_MCONF_IMPORT 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_ORD_MCONF_IMPORT. 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_ORD_MCONF_IMPORT 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_ORD_MCONF_IMPORT TYPE STANDARD TABLE OF EAM_S_ORD_MCONF_IMPORT,
      WA_EAM_S_ORD_MCONF_IMPORT TYPE EAM_S_ORD_MCONF_IMPORT,
      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_ORD_MCONF_IMPORT> TYPE EAM_S_ORD_MCONF_IMPORT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAM_S_ORD_MCONF_IMPORT
*  INTO TABLE @DATA(IT_EAM_S_ORD_MCONF_IMPORT2).
*--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_ORD_MCONF_IMPORT INDEX 1 INTO DATA(WA_EAM_S_ORD_MCONF_IMPORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAM_S_ORD_MCONF_IMPORT>-MAINTORDERCONFUPLOADROWNUMBER = 1.
<EAM_S_ORD_MCONF_IMPORT>-MAINTENANCEORDER = 1.
<EAM_S_ORD_MCONF_IMPORT>-MAINTENANCEORDERDESC = 1.
<EAM_S_ORD_MCONF_IMPORT>-MAINTENANCEORDEROPERATION = 1.
<EAM_S_ORD_MCONF_IMPORT>-OPERATIONDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDERSUBOPERATION, sy-vline,
  WA_EAM_S_ORD_MCONF_IMPORT-PERSONNELNUMBER, sy-vline,
  WA_EAM_S_ORD_MCONF_IMPORT-ACTIVITYTYPE, sy-vline,
  WA_EAM_S_ORD_MCONF_IMPORT-ACTUALWORKQUANTITY, sy-vline,
  WA_EAM_S_ORD_MCONF_IMPORT-ACTUALWORKQUANTITYUNIT, sy-vline,
  WA_EAM_S_ORD_MCONF_IMPORT-ISFINALCONFIRMATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAM_S_ORD_MCONF_IMPORT 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_ORD_MCONF_IMPORT 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_ORD_MCONF_IMPORT INTO WA_EAM_S_ORD_MCONF_IMPORT.


*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_ORD_MCONF_IMPORT-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field MAINTENANCEORDEROPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDEROPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDEROPERATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field MAINTENANCEORDERSUBOPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDERSUBOPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_S_ORD_MCONF_IMPORT-MAINTENANCEORDERSUBOPERATION.
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_ORD_MCONF_IMPORT_STR, 
MAINTORDERCONFUPLOADROWNUMBER TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDERDESC TYPE STRING,
MAINTENANCEORDEROPERATION TYPE STRING,
OPERATIONDESCRIPTION TYPE STRING,
MAINTENANCEORDERSUBOPERATION TYPE STRING,
PERSONNELNUMBER TYPE STRING,
ACTIVITYTYPE TYPE STRING,
ACTUALWORKQUANTITY TYPE STRING,
ACTUALWORKQUANTITYUNIT TYPE STRING,
ISFINALCONFIRMATION TYPE STRING,
POSTINGDATE TYPE STRING,
CONFIRMATIONTEXT TYPE STRING,
OPERATIONCONFIRMEDSTARTDATE TYPE STRING,
OPERATIONCONFIRMEDSTARTTIME TYPE STRING,
OPERATIONCONFIRMEDENDDATE TYPE STRING,
OPERATIONCONFIRMEDENDTIME TYPE STRING,
ACTYCONFFCSTDENDDATE TYPE STRING,
ACTYCONFFCSTDENDTIME TYPE STRING,
NOFURTHERWORKQUANTITYISEXPD TYPE STRING,
REMAININGWORKQUANTITY TYPE STRING,
REMAININGWORKQUANTITYUNIT TYPE STRING,
OPENRESERVATIONSISCLEARED TYPE STRING,
VARIANCEREASONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAM_S_ORD_MCONF_IMPORT_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_ORD_MCONF_IMPORT_STR-MAINTORDERCONFUPLOADROWNUMBER sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-MAINTENANCEORDER sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-MAINTENANCEORDERDESC sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-MAINTENANCEORDEROPERATION sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPERATIONDESCRIPTION sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-MAINTENANCEORDERSUBOPERATION sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-PERSONNELNUMBER sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ACTIVITYTYPE sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ACTUALWORKQUANTITY sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ACTUALWORKQUANTITYUNIT sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ISFINALCONFIRMATION sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-POSTINGDATE sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-CONFIRMATIONTEXT sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPERATIONCONFIRMEDSTARTDATE sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPERATIONCONFIRMEDSTARTTIME sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPERATIONCONFIRMEDENDDATE sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPERATIONCONFIRMEDENDTIME sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ACTYCONFFCSTDENDDATE sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-ACTYCONFFCSTDENDTIME sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-NOFURTHERWORKQUANTITYISEXPD sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-REMAININGWORKQUANTITY sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-REMAININGWORKQUANTITYUNIT sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-OPENRESERVATIONSISCLEARED sy-vline 
WA_EAM_S_ORD_MCONF_IMPORT_STR-VARIANCEREASONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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