ABAP Select data from SAP table VPPHDDMRPSL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VPPHDDMRPSL 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 VPPHDDMRPSL. 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 VPPHDDMRPSL 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_VPPHDDMRPSL TYPE STANDARD TABLE OF VPPHDDMRPSL,
      WA_VPPHDDMRPSL TYPE VPPHDDMRPSL,
      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: <VPPHDDMRPSL> TYPE VPPHDDMRPSL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VPPHDDMRPSL
*  INTO TABLE @DATA(IT_VPPHDDMRPSL2).
*--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_VPPHDDMRPSL INDEX 1 INTO DATA(WA_VPPHDDMRPSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VPPHDDMRPSL>-MANDT = 1.
<VPPHDDMRPSL>-MATERIAL = 1.
<VPPHDDMRPSL>-PLANT = 1.
<VPPHDDMRPSL>-STORAGELOCATION = 1.
<VPPHDDMRPSL>-POSTINGDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VPPHDDMRPSL-INVENTORYSPECIALSTOCKTYPE, sy-vline,
  WA_VPPHDDMRPSL-SUPPLIER, sy-vline,
  WA_VPPHDDMRPSL-SALESORDER, sy-vline,
  WA_VPPHDDMRPSL-SALESORDERITEM, sy-vline,
  WA_VPPHDDMRPSL-PROJECTINTERNALID, sy-vline,
  WA_VPPHDDMRPSL-SPECIALSTOCKINDICATOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VPPHDDMRPSL 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_VPPHDDMRPSL 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_VPPHDDMRPSL INTO WA_VPPHDDMRPSL.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VPPHDDMRPSL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPPHDDMRPSL-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VPPHDDMRPSL-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPPHDDMRPSL-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VPPHDDMRPSL-SALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPPHDDMRPSL-SALESORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJECTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_VPPHDDMRPSL-PROJECTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VPPHDDMRPSL-PROJECTINTERNALID.
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_VPPHDDMRPSL_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
POSTINGDATE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
SUPPLIER TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
PROJECTINTERNALID TYPE STRING,
SPECIALSTOCKINDICATOR TYPE STRING,
MRPPLANNINGSEGMENTTYPE TYPE STRING,
MRPPLANNINGSEGMENT TYPE STRING,
MRPELEMENTCATEGORY TYPE STRING,
MRPELEMENTCATEGORYIMPORTANCE TYPE STRING,
MRPELEMENTAVAILYORRQMTDATE TYPE STRING,
QUANTITYISRELEVANTFORMRP TYPE STRING,
MRPELEMENTTYPEIMPORTANCE TYPE STRING,
MRPELEMENTOPENQUANTITY TYPE STRING,
BATCH TYPE STRING,
STOCKSEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VPPHDDMRPSL_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_VPPHDDMRPSL_STR-MANDT sy-vline 
WA_VPPHDDMRPSL_STR-MATERIAL sy-vline 
WA_VPPHDDMRPSL_STR-PLANT sy-vline 
WA_VPPHDDMRPSL_STR-STORAGELOCATION sy-vline 
WA_VPPHDDMRPSL_STR-POSTINGDATE sy-vline 
WA_VPPHDDMRPSL_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_VPPHDDMRPSL_STR-SUPPLIER sy-vline 
WA_VPPHDDMRPSL_STR-SALESORDER sy-vline 
WA_VPPHDDMRPSL_STR-SALESORDERITEM sy-vline 
WA_VPPHDDMRPSL_STR-PROJECTINTERNALID sy-vline 
WA_VPPHDDMRPSL_STR-SPECIALSTOCKINDICATOR sy-vline 
WA_VPPHDDMRPSL_STR-MRPPLANNINGSEGMENTTYPE sy-vline 
WA_VPPHDDMRPSL_STR-MRPPLANNINGSEGMENT sy-vline 
WA_VPPHDDMRPSL_STR-MRPELEMENTCATEGORY sy-vline 
WA_VPPHDDMRPSL_STR-MRPELEMENTCATEGORYIMPORTANCE sy-vline 
WA_VPPHDDMRPSL_STR-MRPELEMENTAVAILYORRQMTDATE sy-vline 
WA_VPPHDDMRPSL_STR-QUANTITYISRELEVANTFORMRP sy-vline 
WA_VPPHDDMRPSL_STR-MRPELEMENTTYPEIMPORTANCE sy-vline 
WA_VPPHDDMRPSL_STR-MRPELEMENTOPENQUANTITY sy-vline 
WA_VPPHDDMRPSL_STR-BATCH sy-vline 
WA_VPPHDDMRPSL_STR-STOCKSEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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