ABAP Select data from SAP table PSDOSUPASSGMTD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSDOSUPASSGMTD
*  INTO TABLE @DATA(IT_PSDOSUPASSGMTD2).
*--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_PSDOSUPASSGMTD INDEX 1 INTO DATA(WA_PSDOSUPASSGMTD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSDOSUPASSGMTD-NORMALASSIGNEDQUANTITYINBSUNT, sy-vline,
  WA_PSDOSUPASSGMTD-FIXEDQUANTITYINBASEUNIT, sy-vline,
  WA_PSDOSUPASSGMTD-SUPASSGMTRESERVEDQTYINBASEUNIT, sy-vline,
  WA_PSDOSUPASSGMTD-ONHOLDQUANTITYINBASEUNIT, sy-vline,
  WA_PSDOSUPASSGMTD-READYFORRELEASEQTYINBASEUNIT, sy-vline,
  WA_PSDOSUPASSGMTD-INBOUNDASSIGNEDQUANTITYINBSUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSDOSUPASSGMTD 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_PSDOSUPASSGMTD 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_PSDOSUPASSGMTD INTO WA_PSDOSUPASSGMTD.


*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 REQUIREMENTDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSDOSUPASSGMTD-REQUIREMENTDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDOSUPASSGMTD-REQUIREMENTDOCUMENTNUMBER.
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_PSDOSUPASSGMTD_STR, 
MANDT TYPE STRING,
REQUIREMENTTYPE TYPE STRING,
REQUIREMENTDOCUMENTNUMBER TYPE STRING,
REQUIREMENTDOCUMENTITEM TYPE STRING,
ASSIGNEDQUANTITYINBASEUNIT TYPE STRING,
NORMALASSIGNEDQUANTITYINBSUNT TYPE STRING,
FIXEDQUANTITYINBASEUNIT TYPE STRING,
SUPASSGMTRESERVEDQTYINBASEUNIT TYPE STRING,
ONHOLDQUANTITYINBASEUNIT TYPE STRING,
READYFORRELEASEQTYINBASEUNIT TYPE STRING,
INBOUNDASSIGNEDQUANTITYINBSUNT TYPE STRING,
PREVIEWFIXEDASSIGNEDQTYINBSUNT TYPE STRING,
PREVIEWRESERVEDASSGDQTYINBSUNT TYPE STRING,
PREVIEWONHOLDASSGDQTYINBSUNT TYPE STRING,
PREVIEWRDYFORRELEASEQTYINBSUNT TYPE STRING,
PREVIEWASSIGNEDQUANTITYINBSUNT TYPE STRING,
REQUESTEDDATE TYPE STRING,
PRODUCTAVAILABILITYDATE TYPE STRING,
SUPPLYDELIVERYDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSDOSUPASSGMTD_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_PSDOSUPASSGMTD_STR-MANDT sy-vline 
WA_PSDOSUPASSGMTD_STR-REQUIREMENTTYPE sy-vline 
WA_PSDOSUPASSGMTD_STR-REQUIREMENTDOCUMENTNUMBER sy-vline 
WA_PSDOSUPASSGMTD_STR-REQUIREMENTDOCUMENTITEM sy-vline 
WA_PSDOSUPASSGMTD_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTD_STR-NORMALASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-FIXEDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTD_STR-SUPASSGMTRESERVEDQTYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTD_STR-ONHOLDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTD_STR-READYFORRELEASEQTYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTD_STR-INBOUNDASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-PREVIEWFIXEDASSIGNEDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-PREVIEWRESERVEDASSGDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-PREVIEWONHOLDASSGDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-PREVIEWRDYFORRELEASEQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-PREVIEWASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTD_STR-REQUESTEDDATE sy-vline 
WA_PSDOSUPASSGMTD_STR-PRODUCTAVAILABILITYDATE sy-vline 
WA_PSDOSUPASSGMTD_STR-SUPPLYDELIVERYDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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