ABAP Select data from SAP table APRDPLNTMRPAREA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APRDPLNTMRPAREA
*  INTO TABLE @DATA(IT_APRDPLNTMRPAREA2).
*--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_APRDPLNTMRPAREA INDEX 1 INTO DATA(WA_APRDPLNTMRPAREA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APRDPLNTMRPAREA>-MANDT = 1.
<APRDPLNTMRPAREA>-PRODUCT = 1.
<APRDPLNTMRPAREA>-PLANT = 1.
<APRDPLNTMRPAREA>-MRPAREA = 1.
<APRDPLNTMRPAREA>-MRPTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APRDPLNTMRPAREA-MRPRESPONSIBLE, sy-vline,
  WA_APRDPLNTMRPAREA-MRPGROUP, sy-vline,
  WA_APRDPLNTMRPAREA-REORDERTHRESHOLDQUANTITY, sy-vline,
  WA_APRDPLNTMRPAREA-PLANNINGTIMEFENCE, sy-vline,
  WA_APRDPLNTMRPAREA-LOTSIZINGPROCEDURE, sy-vline,
  WA_APRDPLNTMRPAREA-LOTSIZEROUNDINGQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APRDPLNTMRPAREA 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_APRDPLNTMRPAREA 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_APRDPLNTMRPAREA INTO WA_APRDPLNTMRPAREA.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_APRDPLNTMRPAREA-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APRDPLNTMRPAREA-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_APRDPLNTMRPAREA-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APRDPLNTMRPAREA-BASEUNIT.
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_APRDPLNTMRPAREA_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
MRPTYPE TYPE STRING,
MRPRESPONSIBLE TYPE STRING,
MRPGROUP TYPE STRING,
REORDERTHRESHOLDQUANTITY TYPE STRING,
PLANNINGTIMEFENCE TYPE STRING,
LOTSIZINGPROCEDURE TYPE STRING,
LOTSIZEROUNDINGQUANTITY TYPE STRING,
MINIMUMLOTSIZEQUANTITY TYPE STRING,
MAXIMUMLOTSIZEQUANTITY TYPE STRING,
MAXIMUMSTOCKQUANTITY TYPE STRING,
ASSEMBLYSCRAPPERCENT TYPE STRING,
PROCUREMENTSUBTYPE TYPE STRING,
DFLTSTORAGELOCATIONEXTPROCMT TYPE STRING,
MRPPLANNINGCALENDAR TYPE STRING,
SAFETYSTOCKQUANTITY TYPE STRING,
RANGEOFCVRGPRFLCODE TYPE STRING,
SAFETYDURATION TYPE STRING,
FIXEDLOTSIZEQUANTITY TYPE STRING,
LOTSIZEINDEPENDENTCOSTS TYPE STRING,
ISSTORAGECOSTS TYPE STRING,
RQMTQTYRCPTTAKTTMEINWRKGDAYS TYPE STRING,
SRVCLVL TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
PERDPRFLFORSFTYTME TYPE STRING,
ISMRPDEPENDENTRQMT TYPE STRING,
ISSAFETYTIME TYPE STRING,
PLANNEDDELIVERYDURATIONINDAYS TYPE STRING,
ISPLANNEDDELIVERYTIME TYPE STRING,
CURRENCY TYPE STRING,
BASEUNIT TYPE STRING,
PLANANDORDERDAYDETERMINATION TYPE STRING,
ROUNDINGPROFILE TYPE STRING,
STORAGELOCATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APRDPLNTMRPAREA_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_APRDPLNTMRPAREA_STR-MANDT sy-vline 
WA_APRDPLNTMRPAREA_STR-PRODUCT sy-vline 
WA_APRDPLNTMRPAREA_STR-PLANT sy-vline 
WA_APRDPLNTMRPAREA_STR-MRPAREA sy-vline 
WA_APRDPLNTMRPAREA_STR-MRPTYPE sy-vline 
WA_APRDPLNTMRPAREA_STR-MRPRESPONSIBLE sy-vline 
WA_APRDPLNTMRPAREA_STR-MRPGROUP sy-vline 
WA_APRDPLNTMRPAREA_STR-REORDERTHRESHOLDQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-PLANNINGTIMEFENCE sy-vline 
WA_APRDPLNTMRPAREA_STR-LOTSIZINGPROCEDURE sy-vline 
WA_APRDPLNTMRPAREA_STR-LOTSIZEROUNDINGQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-MINIMUMLOTSIZEQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-MAXIMUMLOTSIZEQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-MAXIMUMSTOCKQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-ASSEMBLYSCRAPPERCENT sy-vline 
WA_APRDPLNTMRPAREA_STR-PROCUREMENTSUBTYPE sy-vline 
WA_APRDPLNTMRPAREA_STR-DFLTSTORAGELOCATIONEXTPROCMT sy-vline 
WA_APRDPLNTMRPAREA_STR-MRPPLANNINGCALENDAR sy-vline 
WA_APRDPLNTMRPAREA_STR-SAFETYSTOCKQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-RANGEOFCVRGPRFLCODE sy-vline 
WA_APRDPLNTMRPAREA_STR-SAFETYDURATION sy-vline 
WA_APRDPLNTMRPAREA_STR-FIXEDLOTSIZEQUANTITY sy-vline 
WA_APRDPLNTMRPAREA_STR-LOTSIZEINDEPENDENTCOSTS sy-vline 
WA_APRDPLNTMRPAREA_STR-ISSTORAGECOSTS sy-vline 
WA_APRDPLNTMRPAREA_STR-RQMTQTYRCPTTAKTTMEINWRKGDAYS sy-vline 
WA_APRDPLNTMRPAREA_STR-SRVCLVL sy-vline 
WA_APRDPLNTMRPAREA_STR-ISMARKEDFORDELETION sy-vline 
WA_APRDPLNTMRPAREA_STR-PERDPRFLFORSFTYTME sy-vline 
WA_APRDPLNTMRPAREA_STR-ISMRPDEPENDENTRQMT sy-vline 
WA_APRDPLNTMRPAREA_STR-ISSAFETYTIME sy-vline 
WA_APRDPLNTMRPAREA_STR-PLANNEDDELIVERYDURATIONINDAYS sy-vline 
WA_APRDPLNTMRPAREA_STR-ISPLANNEDDELIVERYTIME sy-vline 
WA_APRDPLNTMRPAREA_STR-CURRENCY sy-vline 
WA_APRDPLNTMRPAREA_STR-BASEUNIT sy-vline 
WA_APRDPLNTMRPAREA_STR-PLANANDORDERDAYDETERMINATION sy-vline 
WA_APRDPLNTMRPAREA_STR-ROUNDINGPROFILE sy-vline 
WA_APRDPLNTMRPAREA_STR-STORAGELOCATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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