ABAP Select data from SAP table IDKR_S_ACQN_ASSET_DEPR_PDF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDKR_S_ACQN_ASSET_DEPR_PDF
*  INTO TABLE @DATA(IT_IDKR_S_ACQN_ASSET_DEPR_PDF2).
*--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_IDKR_S_ACQN_ASSET_DEPR_PDF INDEX 1 INTO DATA(WA_IDKR_S_ACQN_ASSET_DEPR_PDF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDKR_S_ACQN_ASSET_DEPR_PDF>-FISCALYEAR = 1.
<IDKR_S_ACQN_ASSET_DEPR_PDF>-REPORTINGPERIOD = 1.
<IDKR_S_ACQN_ASSET_DEPR_PDF>-FROMMONTH = 1.
<IDKR_S_ACQN_ASSET_DEPR_PDF>-FROMDAY = 1.
<IDKR_S_ACQN_ASSET_DEPR_PDF>-TOMONTH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDKR_S_ACQN_ASSET_DEPR_PDF-TODAY, sy-vline,
  WA_IDKR_S_ACQN_ASSET_DEPR_PDF-COMPANYNAME, sy-vline,
  WA_IDKR_S_ACQN_ASSET_DEPR_PDF-VATREGISTRATIONNUM, sy-vline,
  WA_IDKR_S_ACQN_ASSET_DEPR_PDF-TYPEOFINDUSTRY, sy-vline,
  WA_IDKR_S_ACQN_ASSET_DEPR_PDF-TYPEOFBUSINESS, sy-vline,
  WA_IDKR_S_ACQN_ASSET_DEPR_PDF-TOTALASSETNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDKR_S_ACQN_ASSET_DEPR_PDF 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_IDKR_S_ACQN_ASSET_DEPR_PDF 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_IDKR_S_ACQN_ASSET_DEPR_PDF INTO WA_IDKR_S_ACQN_ASSET_DEPR_PDF.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_S_ACQN_ASSET_DEPR_PDF-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_S_ACQN_ASSET_DEPR_PDF-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CURRENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_S_ACQN_ASSET_DEPR_PDF-CURRENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_S_ACQN_ASSET_DEPR_PDF-CURRENTYEAR.
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_IDKR_S_ACQN_ASSET_DEPR_PDF_STR, 
FISCALYEAR TYPE STRING,
REPORTINGPERIOD TYPE STRING,
FROMMONTH TYPE STRING,
FROMDAY TYPE STRING,
TOMONTH TYPE STRING,
TODAY TYPE STRING,
COMPANYNAME TYPE STRING,
VATREGISTRATIONNUM TYPE STRING,
TYPEOFINDUSTRY TYPE STRING,
TYPEOFBUSINESS TYPE STRING,
TOTALASSETNUM TYPE STRING,
BUILDINGNUM TYPE STRING,
MACHINARYNUM TYPE STRING,
VEHICLENUM TYPE STRING,
OTHERNUM TYPE STRING,
TOTALNETAMT TYPE STRING,
BUILDINGNETAMT TYPE STRING,
MACHINARYNETAMT TYPE STRING,
VEHICLENETAMT TYPE STRING,
OTHERNETAMT TYPE STRING,
TOTALTAXAMT TYPE STRING,
BUILDINGTAXAMT TYPE STRING,
MACHINARYTAXAMT TYPE STRING,
VEHICLETAXAMT TYPE STRING,
OTHERTAXAMT TYPE STRING,
COMMENTTOTAL TYPE STRING,
COMMENTBUILDING TYPE STRING,
COMMENTMACHINARY TYPE STRING,
COMMENTVEHICLE TYPE STRING,
COMMENTOTHER TYPE STRING,
CURRENTYEAR TYPE STRING,
CURRENTMONTH TYPE STRING,
CURRENTDAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDKR_S_ACQN_ASSET_DEPR_PDF_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_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-FISCALYEAR sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-REPORTINGPERIOD sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-FROMMONTH sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-FROMDAY sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TOMONTH sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TODAY sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMPANYNAME sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-VATREGISTRATIONNUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TYPEOFINDUSTRY sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TYPEOFBUSINESS sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TOTALASSETNUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-BUILDINGNUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-MACHINARYNUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-VEHICLENUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-OTHERNUM sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TOTALNETAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-BUILDINGNETAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-MACHINARYNETAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-VEHICLENETAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-OTHERNETAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-TOTALTAXAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-BUILDINGTAXAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-MACHINARYTAXAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-VEHICLETAXAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-OTHERTAXAMT sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMMENTTOTAL sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMMENTBUILDING sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMMENTMACHINARY sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMMENTVEHICLE sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-COMMENTOTHER sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-CURRENTYEAR sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-CURRENTMONTH sy-vline 
WA_IDKR_S_ACQN_ASSET_DEPR_PDF_STR-CURRENTDAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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