ABAP Select data from SAP table OLCS_PMCO_OP_SUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OLCS_PMCO_OP_SUM
*  INTO TABLE @DATA(IT_OLCS_PMCO_OP_SUM2).
*--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_OLCS_PMCO_OP_SUM INDEX 1 INTO DATA(WA_OLCS_PMCO_OP_SUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OLCS_PMCO_OP_SUM>-OBJNR = 1.
<OLCS_PMCO_OP_SUM>-AUFNR = 1.
<OLCS_PMCO_OP_SUM>-KGRUPPE = 1.
<OLCS_PMCO_OP_SUM>-VORNR = 1.
<OLCS_PMCO_OP_SUM>-VORTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OLCS_PMCO_OP_SUM-UVORN, sy-vline,
  WA_OLCS_PMCO_OP_SUM-UVORTEXT, sy-vline,
  WA_OLCS_PMCO_OP_SUM-ACPOS, sy-vline,
  WA_OLCS_PMCO_OP_SUM-WKTEXT, sy-vline,
  WA_OLCS_PMCO_OP_SUM-BEMOT, sy-vline,
  WA_OLCS_PMCO_OP_SUM-BEMOT_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OLCS_PMCO_OP_SUM 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_OLCS_PMCO_OP_SUM 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_OLCS_PMCO_OP_SUM INTO WA_OLCS_PMCO_OP_SUM.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OLCS_PMCO_OP_SUM-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLCS_PMCO_OP_SUM-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_OLCS_PMCO_OP_SUM-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLCS_PMCO_OP_SUM-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_OLCS_PMCO_OP_SUM-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLCS_PMCO_OP_SUM-UVORN.
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_OLCS_PMCO_OP_SUM_STR, 
OBJNR TYPE STRING,
AUFNR TYPE STRING,
KGRUPPE TYPE STRING,
VORNR TYPE STRING,
VORTEXT TYPE STRING,
UVORN TYPE STRING,
UVORTEXT TYPE STRING,
ACPOS TYPE STRING,
WKTEXT TYPE STRING,
BEMOT TYPE STRING,
BEMOT_TXT TYPE STRING,
SKOSTENKGR TYPE STRING,
PKOSTENKGR TYPE STRING,
IKOSTENKGR TYPE STRING,
OBJWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OLCS_PMCO_OP_SUM_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_OLCS_PMCO_OP_SUM_STR-OBJNR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-AUFNR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-KGRUPPE sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-VORNR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-VORTEXT sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-UVORN sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-UVORTEXT sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-ACPOS sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-WKTEXT sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-BEMOT sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-BEMOT_TXT sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-SKOSTENKGR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-PKOSTENKGR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-IKOSTENKGR sy-vline 
WA_OLCS_PMCO_OP_SUM_STR-OBJWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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