ABAP Select data from SAP table PSDOSUPASSGMTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSDOSUPASSGMTS
*  INTO TABLE @DATA(IT_PSDOSUPASSGMTS2).
*--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_PSDOSUPASSGMTS INDEX 1 INTO DATA(WA_PSDOSUPASSGMTS2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSDOSUPASSGMTS-ASSIGNEDSUPPLYTYPE, sy-vline,
  WA_PSDOSUPASSGMTS-SUPPLYNUMBER, sy-vline,
  WA_PSDOSUPASSGMTS-SUPPLYITEM, sy-vline,
  WA_PSDOSUPASSGMTS-SUPPLYSCHEDULELINE, sy-vline,
  WA_PSDOSUPASSGMTS-ASSIGNEDQUANTITYINBASEUNIT, sy-vline,
  WA_PSDOSUPASSGMTS-NORMALASSIGNEDQUANTITYINBSUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSDOSUPASSGMTS 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_PSDOSUPASSGMTS 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_PSDOSUPASSGMTS INTO WA_PSDOSUPASSGMTS.


*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_PSDOSUPASSGMTS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDOSUPASSGMTS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSDOSUPASSGMTS-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDOSUPASSGMTS-BASEUNIT.
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_PSDOSUPASSGMTS_STR, 
MANDT TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
BATCH TYPE STRING,
ASSIGNEDSUPPLYTYPE TYPE STRING,
SUPPLYNUMBER TYPE STRING,
SUPPLYITEM TYPE STRING,
SUPPLYSCHEDULELINE 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,
BASEUNIT TYPE STRING,
PRODUCTAVAILABILITYDATE TYPE STRING,
STOCKSEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSDOSUPASSGMTS_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_PSDOSUPASSGMTS_STR-MANDT sy-vline 
WA_PSDOSUPASSGMTS_STR-PLANT sy-vline 
WA_PSDOSUPASSGMTS_STR-MATERIAL sy-vline 
WA_PSDOSUPASSGMTS_STR-STORAGELOCATION sy-vline 
WA_PSDOSUPASSGMTS_STR-BATCH sy-vline 
WA_PSDOSUPASSGMTS_STR-ASSIGNEDSUPPLYTYPE sy-vline 
WA_PSDOSUPASSGMTS_STR-SUPPLYNUMBER sy-vline 
WA_PSDOSUPASSGMTS_STR-SUPPLYITEM sy-vline 
WA_PSDOSUPASSGMTS_STR-SUPPLYSCHEDULELINE sy-vline 
WA_PSDOSUPASSGMTS_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-NORMALASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-FIXEDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-SUPASSGMTRESERVEDQTYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-ONHOLDQUANTITYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-READYFORRELEASEQTYINBASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-INBOUNDASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-PREVIEWFIXEDASSIGNEDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-PREVIEWRESERVEDASSGDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-PREVIEWONHOLDASSGDQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-PREVIEWRDYFORRELEASEQTYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-PREVIEWASSIGNEDQUANTITYINBSUNT sy-vline 
WA_PSDOSUPASSGMTS_STR-BASEUNIT sy-vline 
WA_PSDOSUPASSGMTS_STR-PRODUCTAVAILABILITYDATE sy-vline 
WA_PSDOSUPASSGMTS_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.