ABAP Select data from SAP table PC2CO_SSA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2CO_SSA 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 PC2CO_SSA. 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 PC2CO_SSA 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_PC2CO_SSA TYPE STANDARD TABLE OF PC2CO_SSA,
      WA_PC2CO_SSA TYPE PC2CO_SSA,
      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: <PC2CO_SSA> TYPE PC2CO_SSA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2CO_SSA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2CO_SSA
  INTO TABLE IT_PC2CO_SSA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2CO_SSA
*  INTO TABLE @DATA(IT_PC2CO_SSA2).
*--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_PC2CO_SSA INDEX 1 INTO DATA(WA_PC2CO_SSA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2CO_SSA ASSIGNING <PC2CO_SSA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2CO_SSA>-APZNR = 1.
<PC2CO_SSA>-RETYP = 1.
<PC2CO_SSA>-SRTZA = 1.
<PC2CO_SSA>-INMNS = 1.
<PC2CO_SSA>-INPER = 1.

ENDLOOP.

LOOP AT IT_PC2CO_SSA INTO WA_PC2CO_SSA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2CO_SSA-FPMNS, sy-vline,
  WA_PC2CO_SSA-FPPER, sy-vline,
  WA_PC2CO_SSA-BUKRS, sy-vline,
  WA_PC2CO_SSA-ENTIT, sy-vline,
  WA_PC2CO_SSA-BRANC, sy-vline,
  WA_PC2CO_SSA-IDAPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2CO_SSA 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_PC2CO_SSA 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_PC2CO_SSA INTO WA_PC2CO_SSA.


*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_PC2CO_SSA-ENTIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC2CO_SSA-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_PC2CO_SSA_STR, 
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_PC2CO_SSA_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_PC2CO_SSA_STR-APZNR sy-vline 
WA_PC2CO_SSA_STR-RETYP sy-vline 
WA_PC2CO_SSA_STR-SRTZA sy-vline 
WA_PC2CO_SSA_STR-INMNS sy-vline 
WA_PC2CO_SSA_STR-INPER sy-vline 
WA_PC2CO_SSA_STR-FPMNS sy-vline 
WA_PC2CO_SSA_STR-FPPER sy-vline 
WA_PC2CO_SSA_STR-BUKRS sy-vline 
WA_PC2CO_SSA_STR-ENTIT sy-vline 
WA_PC2CO_SSA_STR-BRANC sy-vline 
WA_PC2CO_SSA_STR-IDAPO sy-vline 
WA_PC2CO_SSA_STR-TYPEN sy-vline 
WA_PC2CO_SSA_STR-CENTR sy-vline 
WA_PC2CO_SSA_STR-DYSWO sy-vline 
WA_PC2CO_SSA_STR-ICTYP sy-vline 
WA_PC2CO_SSA_STR-ICNUM sy-vline 
WA_PC2CO_SSA_STR-NVING sy-vline 
WA_PC2CO_SSA_STR-NVRET sy-vline 
WA_PC2CO_SSA_STR-NVTDA sy-vline 
WA_PC2CO_SSA_STR-NVTAA sy-vline 
WA_PC2CO_SSA_STR-NVVSP sy-vline 
WA_PC2CO_SSA_STR-NVVTE sy-vline 
WA_PC2CO_SSA_STR-NVVST sy-vline 
WA_PC2CO_SSA_STR-NVSLN sy-vline 
WA_PC2CO_SSA_STR-NVIGE sy-vline 
WA_PC2CO_SSA_STR-NVLMA sy-vline 
WA_PC2CO_SSA_STR-NVVAC sy-vline 
WA_PC2CO_SSA_STR-NVAVP sy-vline 
WA_PC2CO_SSA_STR-NVVCT sy-vline 
WA_PC2CO_SSA_STR-NVIRP sy-vline 
WA_PC2CO_SSA_STR-ENTIN sy-vline 
WA_PC2CO_SSA_STR-PERCB sy-vline 
WA_PC2CO_SSA_STR-PERCP sy-vline 
WA_PC2CO_SSA_STR-BTSUE sy-vline 
WA_PC2CO_SSA_STR-BTIBC sy-vline 
WA_PC2CO_SSA_STR-BTAVB sy-vline 
WA_PC2CO_SSA_STR-BTAVP sy-vline 
WA_PC2CO_SSA_STR-BTFSB sy-vline 
WA_PC2CO_SSA_STR-BTFSP sy-vline 
WA_PC2CO_SSA_STR-BTVNR sy-vline 
WA_PC2CO_SSA_STR-BTUPC sy-vline 
WA_PC2CO_SSA_STR-BTBUK sy-vline 
WA_PC2CO_SSA_STR-BTPER sy-vline 
WA_PC2CO_SSA_STR-BTVAP sy-vline 
WA_PC2CO_SSA_STR-BTVAF sy-vline 
WA_PC2CO_SSA_STR-WAERS sy-vline 
WA_PC2CO_SSA_STR-TYPCO sy-vline 
WA_PC2CO_SSA_STR-SUBCO sy-vline 
WA_PC2CO_SSA_STR-ENOAC sy-vline 
WA_PC2CO_SSA_STR-COREX sy-vline 
WA_PC2CO_SSA_STR-BLAND sy-vline 
WA_PC2CO_SSA_STR-CITYC sy-vline 
WA_PC2CO_SSA_STR-BTFSS sy-vline 
WA_PC2CO_SSA_STR-BTSUB sy-vline 
WA_PC2CO_SSA_STR-SAINT sy-vline 
WA_PC2CO_SSA_STR-NVSUS sy-vline 
WA_PC2CO_SSA_STR-BTASB sy-vline 
WA_PC2CO_SSA_STR-ECREE sy-vline 
WA_PC2CO_SSA_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.