ABAP Select data from SAP table EAMS_DOWNLOAD_XLSX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS_DOWNLOAD_XLSX
*  INTO TABLE @DATA(IT_EAMS_DOWNLOAD_XLSX2).
*--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_EAMS_DOWNLOAD_XLSX INDEX 1 INTO DATA(WA_EAMS_DOWNLOAD_XLSX2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS_DOWNLOAD_XLSX-CAPA_CATEGORY, sy-vline,
  WA_EAMS_DOWNLOAD_XLSX-SPLIT, sy-vline,
  WA_EAMS_DOWNLOAD_XLSX-ACTUALWORKQUANTITY, sy-vline,
  WA_EAMS_DOWNLOAD_XLSX-ACTUALWORKQUANTITYUNIT, sy-vline,
  WA_EAMS_DOWNLOAD_XLSX-ISFINALCONFIRMATION, sy-vline,
  WA_EAMS_DOWNLOAD_XLSX-NOFURTHERWORKQUANTITYISEXPD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS_DOWNLOAD_XLSX 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_EAMS_DOWNLOAD_XLSX 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_EAMS_DOWNLOAD_XLSX INTO WA_EAMS_DOWNLOAD_XLSX.


*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_EAMS_DOWNLOAD_XLSX_STR, 
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDERDESC TYPE STRING,
MAINTENANCEORDEROPERATION TYPE STRING,
OPERATIONDESCRIPTION TYPE STRING,
MAINTENANCEORDERSUBOPERATION TYPE STRING,
CAPA_CATEGORY TYPE STRING,
SPLIT TYPE STRING,
ACTUALWORKQUANTITY TYPE STRING,
ACTUALWORKQUANTITYUNIT TYPE STRING,
ISFINALCONFIRMATION TYPE STRING,
NOFURTHERWORKQUANTITYISEXPD TYPE STRING,
OPENRESERVATIONSISCLEARED TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
PLANT TYPE STRING,
ACTIVITYTYPE TYPE STRING,
ACCOUNTINGINDICATORCODE TYPE STRING,
POSTINGDATE TYPE STRING,
PERSONNELNUMBER TYPE STRING,
EMPLOYEEWAGETYPE TYPE STRING,
REMAININGWORKQUANTITY TYPE STRING,
REMAININGWORKQUANTITYUNIT TYPE STRING,
ACTYCONFFCSTDENDDATE TYPE STRING,
ACTYCONFFCSTDENDTIME TYPE STRING,
ACTUALDURATION TYPE STRING,
ACTUALDURATIONUNIT TYPE STRING,
OPERATIONCONFIRMEDSTARTDATE TYPE STRING,
OPERATIONCONFIRMEDSTARTTIME TYPE STRING,
OPERATIONCONFIRMEDENDDATE TYPE STRING,
OPERATIONCONFIRMEDENDTIME TYPE STRING,
VARIANCEREASONCODE TYPE STRING,
CONFIRMATIONTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS_DOWNLOAD_XLSX_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_EAMS_DOWNLOAD_XLSX_STR-MAINTENANCEORDER sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-MAINTENANCEORDERDESC sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-MAINTENANCEORDEROPERATION sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPERATIONDESCRIPTION sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-MAINTENANCEORDERSUBOPERATION sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-CAPA_CATEGORY sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-SPLIT sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTUALWORKQUANTITY sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTUALWORKQUANTITYUNIT sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ISFINALCONFIRMATION sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-NOFURTHERWORKQUANTITYISEXPD sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPENRESERVATIONSISCLEARED sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-WORKCENTERINTERNALID sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-PLANT sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTIVITYTYPE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACCOUNTINGINDICATORCODE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-POSTINGDATE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-PERSONNELNUMBER sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-EMPLOYEEWAGETYPE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-REMAININGWORKQUANTITY sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-REMAININGWORKQUANTITYUNIT sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTYCONFFCSTDENDDATE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTYCONFFCSTDENDTIME sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTUALDURATION sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-ACTUALDURATIONUNIT sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPERATIONCONFIRMEDSTARTDATE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPERATIONCONFIRMEDSTARTTIME sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPERATIONCONFIRMEDENDDATE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-OPERATIONCONFIRMEDENDTIME sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-VARIANCEREASONCODE sy-vline 
WA_EAMS_DOWNLOAD_XLSX_STR-CONFIRMATIONTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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