ABAP Select data from SAP table PSUBCONTRCALC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSUBCONTRCALC
*  INTO TABLE @DATA(IT_PSUBCONTRCALC2).
*--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_PSUBCONTRCALC INDEX 1 INTO DATA(WA_PSUBCONTRCALC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSUBCONTRCALC>-MANDT = 1.
<PSUBCONTRCALC>-MATERIALCOMPONENT = 1.
<PSUBCONTRCALC>-PLANT = 1.
<PSUBCONTRCALC>-SUBCONTRACTOR = 1.
<PSUBCONTRCALC>-INITAVAILQTYSUBCONTRG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSUBCONTRCALC-DIRECTDELIVERIES, sy-vline,
  WA_PSUBCONTRCALC-ACTUALDELIVERYQUANTITY, sy-vline,
  WA_PSUBCONTRCALC-STOCKTRANSFERQTY, sy-vline,
  WA_PSUBCONTRCALC-TOTALAVAILABILITYQTY, sy-vline,
  WA_PSUBCONTRCALC-POREQUIREDQUANTITY, sy-vline,
  WA_PSUBCONTRCALC-SAREQUIREDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSUBCONTRCALC 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_PSUBCONTRCALC 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_PSUBCONTRCALC INTO WA_PSUBCONTRCALC.


*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 MATERIALCOMPONENT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PSUBCONTRCALC-MATERIALCOMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSUBCONTRCALC-MATERIALCOMPONENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSUBCONTRCALC-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSUBCONTRCALC-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_PSUBCONTRCALC_STR, 
MANDT TYPE STRING,
MATERIALCOMPONENT TYPE STRING,
PLANT TYPE STRING,
SUBCONTRACTOR TYPE STRING,
INITAVAILQTYSUBCONTRG TYPE STRING,
DIRECTDELIVERIES TYPE STRING,
ACTUALDELIVERYQUANTITY TYPE STRING,
STOCKTRANSFERQTY TYPE STRING,
TOTALAVAILABILITYQTY TYPE STRING,
POREQUIREDQUANTITY TYPE STRING,
SAREQUIREDQUANTITY TYPE STRING,
PRREQUIREDQUANTITY TYPE STRING,
TOTALSUBCONTRGREQUIREMENT TYPE STRING,
STOCKBALANCEQUANTITY TYPE STRING,
BASEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSUBCONTRCALC_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_PSUBCONTRCALC_STR-MANDT sy-vline 
WA_PSUBCONTRCALC_STR-MATERIALCOMPONENT sy-vline 
WA_PSUBCONTRCALC_STR-PLANT sy-vline 
WA_PSUBCONTRCALC_STR-SUBCONTRACTOR sy-vline 
WA_PSUBCONTRCALC_STR-INITAVAILQTYSUBCONTRG sy-vline 
WA_PSUBCONTRCALC_STR-DIRECTDELIVERIES sy-vline 
WA_PSUBCONTRCALC_STR-ACTUALDELIVERYQUANTITY sy-vline 
WA_PSUBCONTRCALC_STR-STOCKTRANSFERQTY sy-vline 
WA_PSUBCONTRCALC_STR-TOTALAVAILABILITYQTY sy-vline 
WA_PSUBCONTRCALC_STR-POREQUIREDQUANTITY sy-vline 
WA_PSUBCONTRCALC_STR-SAREQUIREDQUANTITY sy-vline 
WA_PSUBCONTRCALC_STR-PRREQUIREDQUANTITY sy-vline 
WA_PSUBCONTRCALC_STR-TOTALSUBCONTRGREQUIREMENT sy-vline 
WA_PSUBCONTRCALC_STR-STOCKBALANCEQUANTITY sy-vline 
WA_PSUBCONTRCALC_STR-BASEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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