ABAP Select data from SAP table PSTCKWRKQTY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSTCKWRKQTY
*  INTO TABLE @DATA(IT_PSTCKWRKQTY2).
*--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_PSTCKWRKQTY INDEX 1 INTO DATA(WA_PSTCKWRKQTY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSTCKWRKQTY>-MANDT = 1.
<PSTCKWRKQTY>-MATERIAL = 1.
<PSTCKWRKQTY>-PLANT = 1.
<PSTCKWRKQTY>-BUBBLEDATE = 1.
<PSTCKWRKQTY>-CUSTOMER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSTCKWRKQTY-ISSUETYPE, sy-vline,
  WA_PSTCKWRKQTY-SOLUTIONTYPE, sy-vline,
  WA_PSTCKWRKQTY-SALESORDER, sy-vline,
  WA_PSTCKWRKQTY-SALESORDERITEM, sy-vline,
  WA_PSTCKWRKQTY-BATCH, sy-vline,
  WA_PSTCKWRKQTY-SUMORIGINALBASEQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSTCKWRKQTY 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_PSTCKWRKQTY 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_PSTCKWRKQTY INTO WA_PSTCKWRKQTY.


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

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

*Conversion exit ALPHA, internal->external for field SALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSTCKWRKQTY-SALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSTCKWRKQTY-SALESORDER.
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_PSTCKWRKQTY_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
BUBBLEDATE TYPE STRING,
CUSTOMER TYPE STRING,
ISSUETYPE TYPE STRING,
SOLUTIONTYPE TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
BATCH TYPE STRING,
SUMORIGINALBASEQUANTITY TYPE STRING,
REFERENCEDOCUMENTSCHEDULELINE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSTCKWRKQTY_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_PSTCKWRKQTY_STR-MANDT sy-vline 
WA_PSTCKWRKQTY_STR-MATERIAL sy-vline 
WA_PSTCKWRKQTY_STR-PLANT sy-vline 
WA_PSTCKWRKQTY_STR-BUBBLEDATE sy-vline 
WA_PSTCKWRKQTY_STR-CUSTOMER sy-vline 
WA_PSTCKWRKQTY_STR-ISSUETYPE sy-vline 
WA_PSTCKWRKQTY_STR-SOLUTIONTYPE sy-vline 
WA_PSTCKWRKQTY_STR-SALESORDER sy-vline 
WA_PSTCKWRKQTY_STR-SALESORDERITEM sy-vline 
WA_PSTCKWRKQTY_STR-BATCH sy-vline 
WA_PSTCKWRKQTY_STR-SUMORIGINALBASEQUANTITY sy-vline 
WA_PSTCKWRKQTY_STR-REFERENCEDOCUMENTSCHEDULELINE sy-vline      INTO ld_text SEPARATED BY SPACE.

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