ABAP Select data from SAP table PEWMPIDOCIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEWMPIDOCIT
*  INTO TABLE @DATA(IT_PEWMPIDOCIT2).
*--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_PEWMPIDOCIT INDEX 1 INTO DATA(WA_PEWMPIDOCIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEWMPIDOCIT>-MANDT = 1.
<PEWMPIDOCIT>-PHYSICALINVENTORYDOCUMENTUUID = 1.
<PEWMPIDOCIT>-PHYSICALINVENTORYITEMNUMBER = 1.
<PEWMPIDOCIT>-PHYSICALINVENTORYDOCNUMBER = 1.
<PEWMPIDOCIT>-PHYSICALINVENTORYDOCYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEWMPIDOCIT-PINVDOCUMENTITEMTYPE, sy-vline,
  WA_PEWMPIDOCIT-PHYSICALINVENTORYDOCUMENTTYPE, sy-vline,
  WA_PEWMPIDOCIT-REASONFORPHYSINVTRYDIFFERENCE, sy-vline,
  WA_PEWMPIDOCIT-PRIORITYCODE, sy-vline,
  WA_PEWMPIDOCIT-PHYSICALINVENTORYSTATUSTEXT, sy-vline,
  WA_PEWMPIDOCIT-PHYSINVENTORYCRTNUTCDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEWMPIDOCIT 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_PEWMPIDOCIT 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_PEWMPIDOCIT INTO WA_PEWMPIDOCIT.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PHYSICALINVENTORYREFDOCNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEWMPIDOCIT-PHYSICALINVENTORYREFDOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEWMPIDOCIT-PHYSICALINVENTORYREFDOCNUMBER.
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_PEWMPIDOCIT_STR, 
MANDT TYPE STRING,
PHYSICALINVENTORYDOCUMENTUUID TYPE STRING,
PHYSICALINVENTORYITEMNUMBER TYPE STRING,
PHYSICALINVENTORYDOCNUMBER TYPE STRING,
PHYSICALINVENTORYDOCYEAR TYPE STRING,
PINVDOCUMENTITEMTYPE TYPE STRING,
PHYSICALINVENTORYDOCUMENTTYPE TYPE STRING,
REASONFORPHYSINVTRYDIFFERENCE TYPE STRING,
PRIORITYCODE TYPE STRING,
PHYSICALINVENTORYSTATUSTEXT TYPE STRING,
PHYSINVENTORYCRTNUTCDATETIME TYPE STRING,
PINVCOUNTEDUTCDATETIME TYPE STRING,
PHYSICALINVENTORYCOUNTUSERNAME TYPE STRING,
WAREHOUSEORDER TYPE STRING,
PINVDOCUMENTITEMISPRINTED TYPE STRING,
PHYSICALINVENTORYISBLOCK TYPE STRING,
PINVBOOKQUANTITYISFREEZE TYPE STRING,
WAREHOUSE TYPE STRING,
STORAGETYPE TYPE STRING,
STORAGEBIN TYPE STRING,
PHYSICALINVENTORYAREA TYPE STRING,
ACTIVITYAREA TYPE STRING,
PRODUCTUUID TYPE STRING,
BATCHUUID TYPE STRING,
STOCKTYPE TYPE STRING,
STOCKUSAGE TYPE STRING,
STOCKOWNER TYPE STRING,
ENTITLEDTODISPOSEPARTY TYPE STRING,
STOCKDOCUMENTCATEGORY TYPE STRING,
STOCKDOCUMENTNUMBER TYPE STRING,
STOCKITEMNUMBER TYPE STRING,
PHYSICALINVENTORYREFDOCYEAR TYPE STRING,
PHYSICALINVENTORYREFDOCNUMBER TYPE STRING,
PHYSICALINVENTORYREFDOCITEM TYPE STRING,
PINVFREEDEFINEDREFTEXT TYPE STRING,
PINVITEMCHGUTCDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEWMPIDOCIT_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_PEWMPIDOCIT_STR-MANDT sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYDOCUMENTUUID sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYITEMNUMBER sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYDOCNUMBER sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYDOCYEAR sy-vline 
WA_PEWMPIDOCIT_STR-PINVDOCUMENTITEMTYPE sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYDOCUMENTTYPE sy-vline 
WA_PEWMPIDOCIT_STR-REASONFORPHYSINVTRYDIFFERENCE sy-vline 
WA_PEWMPIDOCIT_STR-PRIORITYCODE sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYSTATUSTEXT sy-vline 
WA_PEWMPIDOCIT_STR-PHYSINVENTORYCRTNUTCDATETIME sy-vline 
WA_PEWMPIDOCIT_STR-PINVCOUNTEDUTCDATETIME sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYCOUNTUSERNAME sy-vline 
WA_PEWMPIDOCIT_STR-WAREHOUSEORDER sy-vline 
WA_PEWMPIDOCIT_STR-PINVDOCUMENTITEMISPRINTED sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYISBLOCK sy-vline 
WA_PEWMPIDOCIT_STR-PINVBOOKQUANTITYISFREEZE sy-vline 
WA_PEWMPIDOCIT_STR-WAREHOUSE sy-vline 
WA_PEWMPIDOCIT_STR-STORAGETYPE sy-vline 
WA_PEWMPIDOCIT_STR-STORAGEBIN sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYAREA sy-vline 
WA_PEWMPIDOCIT_STR-ACTIVITYAREA sy-vline 
WA_PEWMPIDOCIT_STR-PRODUCTUUID sy-vline 
WA_PEWMPIDOCIT_STR-BATCHUUID sy-vline 
WA_PEWMPIDOCIT_STR-STOCKTYPE sy-vline 
WA_PEWMPIDOCIT_STR-STOCKUSAGE sy-vline 
WA_PEWMPIDOCIT_STR-STOCKOWNER sy-vline 
WA_PEWMPIDOCIT_STR-ENTITLEDTODISPOSEPARTY sy-vline 
WA_PEWMPIDOCIT_STR-STOCKDOCUMENTCATEGORY sy-vline 
WA_PEWMPIDOCIT_STR-STOCKDOCUMENTNUMBER sy-vline 
WA_PEWMPIDOCIT_STR-STOCKITEMNUMBER sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYREFDOCYEAR sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYREFDOCNUMBER sy-vline 
WA_PEWMPIDOCIT_STR-PHYSICALINVENTORYREFDOCITEM sy-vline 
WA_PEWMPIDOCIT_STR-PINVFREEDEFINEDREFTEXT sy-vline 
WA_PEWMPIDOCIT_STR-PINVITEMCHGUTCDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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