ABAP Select data from SAP table PKONVDNETPOS 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 PKONVDNETPOS 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 PKONVDNETPOS. 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 PKONVDNETPOS 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_PKONVDNETPOS TYPE STANDARD TABLE OF PKONVDNETPOS,
      WA_PKONVDNETPOS TYPE PKONVDNETPOS,
      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: <PKONVDNETPOS> TYPE PKONVDNETPOS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKONVDNETPOS
*  INTO TABLE @DATA(IT_PKONVDNETPOS2).
*--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_PKONVDNETPOS INDEX 1 INTO DATA(WA_PKONVDNETPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKONVDNETPOS>-MANDT = 1.
<PKONVDNETPOS>-PRICINGKEY = 1.
<PKONVDNETPOS>-PRICINGDOCUMENTITEM = 1.
<PKONVDNETPOS>-CONDITIONTYPE = 1.
<PKONVDNETPOS>-SUBCONDITIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKONVDNETPOS-VERSSTOCKRECORDUUID, sy-vline,
  WA_PKONVDNETPOS-MTMDATASOURCETYPE, sy-vline,
  WA_PKONVDNETPOS-SOURCETRANSACTIONEVENTDATETIME, sy-vline,
  WA_PKONVDNETPOS-SOURCETRANSACEVENTENDDATETIME, sy-vline,
  WA_PKONVDNETPOS-MTMDATASELECTIONTYPE, sy-vline,
  WA_PKONVDNETPOS-ENDOFDAYSNAPSHOTFROMDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKONVDNETPOS 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_PKONVDNETPOS 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_PKONVDNETPOS INTO WA_PKONVDNETPOS.


*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 CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-MATERIALBASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMMODITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-COMMODITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-COMMODITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CMMDTYPRICEEXPSRMASSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-CMMDTYPRICEEXPSRMASSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-CMMDTYPRICEEXPSRMASSUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CMMDTYPRICEEXPSRVOLUMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-CMMDTYPRICEEXPSRVOLUMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-CMMDTYPRICEEXPSRVOLUMEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMMODITYEXPOSUREUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-COMMODITYEXPOSUREUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-COMMODITYEXPOSUREUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PKONVDNETPOS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKONVDNETPOS-MATERIAL.
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_PKONVDNETPOS_STR, 
MANDT TYPE STRING,
PRICINGKEY TYPE STRING,
PRICINGDOCUMENTITEM TYPE STRING,
CONDITIONTYPE TYPE STRING,
SUBCONDITIONTYPE TYPE STRING,
VERSSTOCKRECORDUUID TYPE STRING,
MTMDATASOURCETYPE TYPE STRING,
SOURCETRANSACTIONEVENTDATETIME TYPE STRING,
SOURCETRANSACEVENTENDDATETIME TYPE STRING,
MTMDATASELECTIONTYPE TYPE STRING,
ENDOFDAYSNAPSHOTFROMDATE TYPE STRING,
ENDOFDAYSNAPSHOTTODATE TYPE STRING,
DISPLAYVIEW TYPE STRING,
COMMODITYQUANTITYINBASEUNIT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
COMMODITYUNIT TYPE STRING,
CMMDTYPRICEEXPSRMASSUNIT TYPE STRING,
CMMDTYPRICEEXPSRVOLUMEUNIT TYPE STRING,
COMMODITYEXPOSUREQUANTITY TYPE STRING,
COMMODITYEXPOSUREUNIT TYPE STRING,
QUANTITYSIGN TYPE STRING,
SOURCEDOCUMENT TYPE STRING,
SOURCEDOCUMENTITEM TYPE STRING,
SOURCEDOCUMENTBUSOBJTYPE TYPE STRING,
MTMCONDITIONGROUPCATEGORY TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
LOADDATACAPTUREOBJECTID TYPE STRING,
LOADDATACAPTUREEVENTTYPE TYPE STRING,
QUANTITYREPOSITORYUUID TYPE STRING,
QUANTITYREPOSITORYVERSION TYPE STRING,
NETPRICEEXPSRQTYINBASEUNIT TYPE STRING,
NETPRICEEXPSRQUANTITY TYPE STRING,
COMMODITYQUANTITY TYPE STRING,
NETPRICEEXPSRQTYINMASSUNIT TYPE STRING,
NETPRICEEXPSRQTYINVOLUMEUNIT TYPE STRING,
NETEXPOSUREQUANTITY TYPE STRING,
DISCPREMQTYSCHEDULEUNIQUEID TYPE STRING,
DISCPREMQTYSCHEDULEVERSION TYPE STRING,
RECORDISLOGICALLYDELETED TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
PHYSICALCOMMODITY TYPE STRING,
COMPANYCODE TYPE STRING,
ENDOFDAYBUSINESSENTITYKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKONVDNETPOS_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_PKONVDNETPOS_STR-MANDT sy-vline 
WA_PKONVDNETPOS_STR-PRICINGKEY sy-vline 
WA_PKONVDNETPOS_STR-PRICINGDOCUMENTITEM sy-vline 
WA_PKONVDNETPOS_STR-CONDITIONTYPE sy-vline 
WA_PKONVDNETPOS_STR-SUBCONDITIONTYPE sy-vline 
WA_PKONVDNETPOS_STR-VERSSTOCKRECORDUUID sy-vline 
WA_PKONVDNETPOS_STR-MTMDATASOURCETYPE sy-vline 
WA_PKONVDNETPOS_STR-SOURCETRANSACTIONEVENTDATETIME sy-vline 
WA_PKONVDNETPOS_STR-SOURCETRANSACEVENTENDDATETIME sy-vline 
WA_PKONVDNETPOS_STR-MTMDATASELECTIONTYPE sy-vline 
WA_PKONVDNETPOS_STR-ENDOFDAYSNAPSHOTFROMDATE sy-vline 
WA_PKONVDNETPOS_STR-ENDOFDAYSNAPSHOTTODATE sy-vline 
WA_PKONVDNETPOS_STR-DISPLAYVIEW sy-vline 
WA_PKONVDNETPOS_STR-COMMODITYQUANTITYINBASEUNIT sy-vline 
WA_PKONVDNETPOS_STR-MATERIALBASEUNIT sy-vline 
WA_PKONVDNETPOS_STR-COMMODITYUNIT sy-vline 
WA_PKONVDNETPOS_STR-CMMDTYPRICEEXPSRMASSUNIT sy-vline 
WA_PKONVDNETPOS_STR-CMMDTYPRICEEXPSRVOLUMEUNIT sy-vline 
WA_PKONVDNETPOS_STR-COMMODITYEXPOSUREQUANTITY sy-vline 
WA_PKONVDNETPOS_STR-COMMODITYEXPOSUREUNIT sy-vline 
WA_PKONVDNETPOS_STR-QUANTITYSIGN sy-vline 
WA_PKONVDNETPOS_STR-SOURCEDOCUMENT sy-vline 
WA_PKONVDNETPOS_STR-SOURCEDOCUMENTITEM sy-vline 
WA_PKONVDNETPOS_STR-SOURCEDOCUMENTBUSOBJTYPE sy-vline 
WA_PKONVDNETPOS_STR-MTMCONDITIONGROUPCATEGORY sy-vline 
WA_PKONVDNETPOS_STR-GOODSMOVEMENTTYPE sy-vline 
WA_PKONVDNETPOS_STR-LOADDATACAPTUREOBJECTID sy-vline 
WA_PKONVDNETPOS_STR-LOADDATACAPTUREEVENTTYPE sy-vline 
WA_PKONVDNETPOS_STR-QUANTITYREPOSITORYUUID sy-vline 
WA_PKONVDNETPOS_STR-QUANTITYREPOSITORYVERSION sy-vline 
WA_PKONVDNETPOS_STR-NETPRICEEXPSRQTYINBASEUNIT sy-vline 
WA_PKONVDNETPOS_STR-NETPRICEEXPSRQUANTITY sy-vline 
WA_PKONVDNETPOS_STR-COMMODITYQUANTITY sy-vline 
WA_PKONVDNETPOS_STR-NETPRICEEXPSRQTYINMASSUNIT sy-vline 
WA_PKONVDNETPOS_STR-NETPRICEEXPSRQTYINVOLUMEUNIT sy-vline 
WA_PKONVDNETPOS_STR-NETEXPOSUREQUANTITY sy-vline 
WA_PKONVDNETPOS_STR-DISCPREMQTYSCHEDULEUNIQUEID sy-vline 
WA_PKONVDNETPOS_STR-DISCPREMQTYSCHEDULEVERSION sy-vline 
WA_PKONVDNETPOS_STR-RECORDISLOGICALLYDELETED sy-vline 
WA_PKONVDNETPOS_STR-PLANT sy-vline 
WA_PKONVDNETPOS_STR-MATERIAL sy-vline 
WA_PKONVDNETPOS_STR-STORAGELOCATION sy-vline 
WA_PKONVDNETPOS_STR-PHYSICALCOMMODITY sy-vline 
WA_PKONVDNETPOS_STR-COMPANYCODE sy-vline 
WA_PKONVDNETPOS_STR-ENDOFDAYBUSINESSENTITYKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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