ABAP Select data from SAP table P2CO_COSSA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2CO_COSSA 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 P2CO_COSSA. 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 P2CO_COSSA 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_P2CO_COSSA TYPE STANDARD TABLE OF P2CO_COSSA,
      WA_P2CO_COSSA TYPE P2CO_COSSA,
      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: <P2CO_COSSA> TYPE P2CO_COSSA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2CO_COSSA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2CO_COSSA
  INTO TABLE IT_P2CO_COSSA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2CO_COSSA
*  INTO TABLE @DATA(IT_P2CO_COSSA2).
*--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_P2CO_COSSA INDEX 1 INTO DATA(WA_P2CO_COSSA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2CO_COSSA ASSIGNING <P2CO_COSSA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2CO_COSSA>-MANDT = 1.
<P2CO_COSSA>-DCT_PERNR = 1.
<P2CO_COSSA>-DCT_SEQNR = 1.
<P2CO_COSSA>-DCT_ROWID = 1.
<P2CO_COSSA>-APZNR = 1.

ENDLOOP.

LOOP AT IT_P2CO_COSSA INTO WA_P2CO_COSSA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2CO_COSSA-RETYP, sy-vline,
  WA_P2CO_COSSA-SRTZA, sy-vline,
  WA_P2CO_COSSA-INMNS, sy-vline,
  WA_P2CO_COSSA-INPER, sy-vline,
  WA_P2CO_COSSA-FPMNS, sy-vline,
  WA_P2CO_COSSA-FPPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2CO_COSSA 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_P2CO_COSSA 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_P2CO_COSSA INTO WA_P2CO_COSSA.


*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 ENTIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2CO_COSSA-ENTIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2CO_COSSA-ENTIT.
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_P2CO_COSSA_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
APZNR TYPE STRING,
RETYP TYPE STRING,
SRTZA TYPE STRING,
INMNS TYPE STRING,
INPER TYPE STRING,
FPMNS TYPE STRING,
FPPER TYPE STRING,
BUKRS TYPE STRING,
ENTIT TYPE STRING,
BRANC TYPE STRING,
IDAPO TYPE STRING,
TYPEN TYPE STRING,
CENTR TYPE STRING,
DYSWO TYPE STRING,
ICTYP TYPE STRING,
ICNUM TYPE STRING,
NVING TYPE STRING,
NVRET TYPE STRING,
NVTDA TYPE STRING,
NVTAA TYPE STRING,
NVVSP TYPE STRING,
NVVTE TYPE STRING,
NVVST TYPE STRING,
NVSLN TYPE STRING,
NVIGE TYPE STRING,
NVLMA TYPE STRING,
NVVAC TYPE STRING,
NVAVP TYPE STRING,
NVVCT TYPE STRING,
NVIRP TYPE STRING,
ENTIN TYPE STRING,
PERCB TYPE STRING,
PERCP TYPE STRING,
BTSUE TYPE STRING,
BTIBC TYPE STRING,
BTAVB TYPE STRING,
BTAVP TYPE STRING,
BTFSB TYPE STRING,
BTFSP TYPE STRING,
BTVNR TYPE STRING,
BTUPC TYPE STRING,
BTBUK TYPE STRING,
BTPER TYPE STRING,
BTVAP TYPE STRING,
BTVAF TYPE STRING,
WAERS TYPE STRING,
TYPCO TYPE STRING,
SUBCO TYPE STRING,
ENOAC TYPE STRING,
COREX TYPE STRING,
BLAND TYPE STRING,
CITYC TYPE STRING,
BTFSS TYPE STRING,
BTSUB TYPE STRING,
SAINT TYPE STRING,
NVSUS TYPE STRING,
BTASB TYPE STRING,
ECREE TYPE STRING,
PAYPF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2CO_COSSA_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_P2CO_COSSA_STR-MANDT sy-vline 
WA_P2CO_COSSA_STR-DCT_PERNR sy-vline 
WA_P2CO_COSSA_STR-DCT_SEQNR sy-vline 
WA_P2CO_COSSA_STR-DCT_ROWID sy-vline 
WA_P2CO_COSSA_STR-APZNR sy-vline 
WA_P2CO_COSSA_STR-RETYP sy-vline 
WA_P2CO_COSSA_STR-SRTZA sy-vline 
WA_P2CO_COSSA_STR-INMNS sy-vline 
WA_P2CO_COSSA_STR-INPER sy-vline 
WA_P2CO_COSSA_STR-FPMNS sy-vline 
WA_P2CO_COSSA_STR-FPPER sy-vline 
WA_P2CO_COSSA_STR-BUKRS sy-vline 
WA_P2CO_COSSA_STR-ENTIT sy-vline 
WA_P2CO_COSSA_STR-BRANC sy-vline 
WA_P2CO_COSSA_STR-IDAPO sy-vline 
WA_P2CO_COSSA_STR-TYPEN sy-vline 
WA_P2CO_COSSA_STR-CENTR sy-vline 
WA_P2CO_COSSA_STR-DYSWO sy-vline 
WA_P2CO_COSSA_STR-ICTYP sy-vline 
WA_P2CO_COSSA_STR-ICNUM sy-vline 
WA_P2CO_COSSA_STR-NVING sy-vline 
WA_P2CO_COSSA_STR-NVRET sy-vline 
WA_P2CO_COSSA_STR-NVTDA sy-vline 
WA_P2CO_COSSA_STR-NVTAA sy-vline 
WA_P2CO_COSSA_STR-NVVSP sy-vline 
WA_P2CO_COSSA_STR-NVVTE sy-vline 
WA_P2CO_COSSA_STR-NVVST sy-vline 
WA_P2CO_COSSA_STR-NVSLN sy-vline 
WA_P2CO_COSSA_STR-NVIGE sy-vline 
WA_P2CO_COSSA_STR-NVLMA sy-vline 
WA_P2CO_COSSA_STR-NVVAC sy-vline 
WA_P2CO_COSSA_STR-NVAVP sy-vline 
WA_P2CO_COSSA_STR-NVVCT sy-vline 
WA_P2CO_COSSA_STR-NVIRP sy-vline 
WA_P2CO_COSSA_STR-ENTIN sy-vline 
WA_P2CO_COSSA_STR-PERCB sy-vline 
WA_P2CO_COSSA_STR-PERCP sy-vline 
WA_P2CO_COSSA_STR-BTSUE sy-vline 
WA_P2CO_COSSA_STR-BTIBC sy-vline 
WA_P2CO_COSSA_STR-BTAVB sy-vline 
WA_P2CO_COSSA_STR-BTAVP sy-vline 
WA_P2CO_COSSA_STR-BTFSB sy-vline 
WA_P2CO_COSSA_STR-BTFSP sy-vline 
WA_P2CO_COSSA_STR-BTVNR sy-vline 
WA_P2CO_COSSA_STR-BTUPC sy-vline 
WA_P2CO_COSSA_STR-BTBUK sy-vline 
WA_P2CO_COSSA_STR-BTPER sy-vline 
WA_P2CO_COSSA_STR-BTVAP sy-vline 
WA_P2CO_COSSA_STR-BTVAF sy-vline 
WA_P2CO_COSSA_STR-WAERS sy-vline 
WA_P2CO_COSSA_STR-TYPCO sy-vline 
WA_P2CO_COSSA_STR-SUBCO sy-vline 
WA_P2CO_COSSA_STR-ENOAC sy-vline 
WA_P2CO_COSSA_STR-COREX sy-vline 
WA_P2CO_COSSA_STR-BLAND sy-vline 
WA_P2CO_COSSA_STR-CITYC sy-vline 
WA_P2CO_COSSA_STR-BTFSS sy-vline 
WA_P2CO_COSSA_STR-BTSUB sy-vline 
WA_P2CO_COSSA_STR-SAINT sy-vline 
WA_P2CO_COSSA_STR-NVSUS sy-vline 
WA_P2CO_COSSA_STR-BTASB sy-vline 
WA_P2CO_COSSA_STR-ECREE sy-vline 
WA_P2CO_COSSA_STR-PAYPF sy-vline      INTO ld_text SEPARATED BY SPACE.

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