ABAP Select data from SAP table PARUNOVWDMND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PARUNOVWDMND
*  INTO TABLE @DATA(IT_PARUNOVWDMND2).
*--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_PARUNOVWDMND INDEX 1 INTO DATA(WA_PARUNOVWDMND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PARUNOVWDMND>-MANDT = 1.
<PARUNOVWDMND>-ATPCHECKUUID = 1.
<PARUNOVWDMND>-REQUIREMENTDOCUMENTNUMBER = 1.
<PARUNOVWDMND>-REQUIREMENTDOCUMENTITEM = 1.
<PARUNOVWDMND>-REQUIREMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PARUNOVWDMND-REQUESTEDRQMTQTYINBASEUNIT, sy-vline,
  WA_PARUNOVWDMND-CONFIRMEDRQMTQTYINBASEUNIT, sy-vline,
  WA_PARUNOVWDMND-ASSIGNEDQUANTITYINBASEUNIT, sy-vline,
  WA_PARUNOVWDMND-TOTACTUALAMTINDISPLAYCURRENCY, sy-vline,
  WA_PARUNOVWDMND-ABOPVARIANTNAME, sy-vline,
  WA_PARUNOVWDMND-STARTEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PARUNOVWDMND 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_PARUNOVWDMND 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_PARUNOVWDMND INTO WA_PARUNOVWDMND.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PARUNOVWDMND_STR, 
MANDT TYPE STRING,
ATPCHECKUUID TYPE STRING,
REQUIREMENTDOCUMENTNUMBER TYPE STRING,
REQUIREMENTDOCUMENTITEM TYPE STRING,
REQUIREMENTTYPE TYPE STRING,
REQUESTEDRQMTQTYINBASEUNIT TYPE STRING,
CONFIRMEDRQMTQTYINBASEUNIT TYPE STRING,
ASSIGNEDQUANTITYINBASEUNIT TYPE STRING,
TOTACTUALAMTINDISPLAYCURRENCY TYPE STRING,
ABOPVARIANTNAME TYPE STRING,
STARTEDBYUSER TYPE STRING,
ATPCHECKSTARTUTCDATETIME TYPE STRING,
ATPCHECKENDUTCDATETIME TYPE STRING,
ATPCHECKSTATUS TYPE STRING,
ABOPEXECUTIONMODE TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PARUNOVWDMND_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_PARUNOVWDMND_STR-MANDT sy-vline 
WA_PARUNOVWDMND_STR-ATPCHECKUUID sy-vline 
WA_PARUNOVWDMND_STR-REQUIREMENTDOCUMENTNUMBER sy-vline 
WA_PARUNOVWDMND_STR-REQUIREMENTDOCUMENTITEM sy-vline 
WA_PARUNOVWDMND_STR-REQUIREMENTTYPE sy-vline 
WA_PARUNOVWDMND_STR-REQUESTEDRQMTQTYINBASEUNIT sy-vline 
WA_PARUNOVWDMND_STR-CONFIRMEDRQMTQTYINBASEUNIT sy-vline 
WA_PARUNOVWDMND_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_PARUNOVWDMND_STR-TOTACTUALAMTINDISPLAYCURRENCY sy-vline 
WA_PARUNOVWDMND_STR-ABOPVARIANTNAME sy-vline 
WA_PARUNOVWDMND_STR-STARTEDBYUSER sy-vline 
WA_PARUNOVWDMND_STR-ATPCHECKSTARTUTCDATETIME sy-vline 
WA_PARUNOVWDMND_STR-ATPCHECKENDUTCDATETIME sy-vline 
WA_PARUNOVWDMND_STR-ATPCHECKSTATUS sy-vline 
WA_PARUNOVWDMND_STR-ABOPEXECUTIONMODE sy-vline 
WA_PARUNOVWDMND_STR-NETPRICEAMOUNT sy-vline 
WA_PARUNOVWDMND_STR-DOCUMENTCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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