ABAP Select data from SAP table PRD_SUPPLY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRD_SUPPLY
*  INTO TABLE @DATA(IT_PRD_SUPPLY2).
*--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_PRD_SUPPLY INDEX 1 INTO DATA(WA_PRD_SUPPLY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRD_SUPPLY>-CLIENT = 1.
<PRD_SUPPLY>-DRAFTKEY = 1.
<PRD_SUPPLY>-PARENTDRAFTKEY = 1.
<PRD_SUPPLY>-HASACTIVEENTITY = 1.
<PRD_SUPPLY>-ROOTDRAFTKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRD_SUPPLY-ACTIVEPRODUCT, sy-vline,
  WA_PRD_SUPPLY-ACTIVEPLANT, sy-vline,
  WA_PRD_SUPPLY-FIXEDLOTSIZEQUANTITY, sy-vline,
  WA_PRD_SUPPLY-MAXIMUMLOTSIZEQUANTITY, sy-vline,
  WA_PRD_SUPPLY-MINIMUMLOTSIZEQUANTITY, sy-vline,
  WA_PRD_SUPPLY-LOTSIZEROUNDINGQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRD_SUPPLY 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_PRD_SUPPLY 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_PRD_SUPPLY INTO WA_PRD_SUPPLY.


*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 ACTIVEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PRD_SUPPLY-ACTIVEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRD_SUPPLY-ACTIVEPRODUCT.
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_PRD_SUPPLY_STR, 
CLIENT TYPE STRING,
DRAFTKEY TYPE STRING,
PARENTDRAFTKEY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
ROOTDRAFTKEY TYPE STRING,
ACTIVEPRODUCT TYPE STRING,
ACTIVEPLANT TYPE STRING,
FIXEDLOTSIZEQUANTITY TYPE STRING,
MAXIMUMLOTSIZEQUANTITY TYPE STRING,
MINIMUMLOTSIZEQUANTITY TYPE STRING,
LOTSIZEROUNDINGQUANTITY TYPE STRING,
LOTSIZINGPROCEDURE TYPE STRING,
MRPTYPE TYPE STRING,
MRPRESPONSIBLE TYPE STRING,
SAFETYSTOCKQUANTITY TYPE STRING,
MINIMUMSAFETYSTOCKQUANTITY TYPE STRING,
PLANNINGTIMEFENCE TYPE STRING,
ABCINDICATOR TYPE STRING,
MAXIMUMSTOCKQUANTITY TYPE STRING,
REORDERTHRESHOLDQUANTITY TYPE STRING,
PLANNEDDELIVERYDURATIONINDAYS TYPE STRING,
SAFETYDURATION TYPE STRING,
PLANNINGSTRATEGYGROUP TYPE STRING,
TOTALREPLENISHMENTLEADTIME TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
PROCUREMENTSUBTYPE TYPE STRING,
ASSEMBLYSCRAPPERCENT TYPE STRING,
PLANANDORDERDAYDETERMINATION TYPE STRING,
ROUNDINGPROFILE TYPE STRING,
DFLTSTORAGELOCATIONEXTPROCMT TYPE STRING,
DUMMY_PLNT_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRD_SUPPLY_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_PRD_SUPPLY_STR-CLIENT sy-vline 
WA_PRD_SUPPLY_STR-DRAFTKEY sy-vline 
WA_PRD_SUPPLY_STR-PARENTDRAFTKEY sy-vline 
WA_PRD_SUPPLY_STR-HASACTIVEENTITY sy-vline 
WA_PRD_SUPPLY_STR-ROOTDRAFTKEY sy-vline 
WA_PRD_SUPPLY_STR-ACTIVEPRODUCT sy-vline 
WA_PRD_SUPPLY_STR-ACTIVEPLANT sy-vline 
WA_PRD_SUPPLY_STR-FIXEDLOTSIZEQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-MAXIMUMLOTSIZEQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-MINIMUMLOTSIZEQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-LOTSIZEROUNDINGQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-LOTSIZINGPROCEDURE sy-vline 
WA_PRD_SUPPLY_STR-MRPTYPE sy-vline 
WA_PRD_SUPPLY_STR-MRPRESPONSIBLE sy-vline 
WA_PRD_SUPPLY_STR-SAFETYSTOCKQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-MINIMUMSAFETYSTOCKQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-PLANNINGTIMEFENCE sy-vline 
WA_PRD_SUPPLY_STR-ABCINDICATOR sy-vline 
WA_PRD_SUPPLY_STR-MAXIMUMSTOCKQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-REORDERTHRESHOLDQUANTITY sy-vline 
WA_PRD_SUPPLY_STR-PLANNEDDELIVERYDURATIONINDAYS sy-vline 
WA_PRD_SUPPLY_STR-SAFETYDURATION sy-vline 
WA_PRD_SUPPLY_STR-PLANNINGSTRATEGYGROUP sy-vline 
WA_PRD_SUPPLY_STR-TOTALREPLENISHMENTLEADTIME sy-vline 
WA_PRD_SUPPLY_STR-PROCUREMENTTYPE sy-vline 
WA_PRD_SUPPLY_STR-PROCUREMENTSUBTYPE sy-vline 
WA_PRD_SUPPLY_STR-ASSEMBLYSCRAPPERCENT sy-vline 
WA_PRD_SUPPLY_STR-PLANANDORDERDAYDETERMINATION sy-vline 
WA_PRD_SUPPLY_STR-ROUNDINGPROFILE sy-vline 
WA_PRD_SUPPLY_STR-DFLTSTORAGELOCATIONEXTPROCMT sy-vline 
WA_PRD_SUPPLY_STR-DUMMY_PLNT_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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