ABAP Select data from SAP table PCOSB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PCOSB 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 PCOSB. 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 PCOSB 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_PCOSB TYPE STANDARD TABLE OF PCOSB,
      WA_PCOSB TYPE PCOSB,
      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: <PCOSB> TYPE PCOSB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCOSB
*  INTO TABLE @DATA(IT_PCOSB2).
*--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_PCOSB INDEX 1 INTO DATA(WA_PCOSB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCOSB>-MANDT = 1.
<PCOSB>-LEDGER = 1.
<PCOSB>-CONTROLLINGOBJECT = 1.
<PCOSB>-CONTROLLINGVALUETYPE = 1.
<PCOSB>-VERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCOSB-TRANSACTIONCURRENCY, sy-vline,
  WA_PCOSB-TRANSACTIONCURRENCY001, sy-vline,
  WA_PCOSB-TRANSACTIONCURRENCY002, sy-vline,
  WA_PCOSB-TRANSACTIONCURRENCY003, sy-vline,
  WA_PCOSB-TRANSACTIONCURRENCY004, sy-vline,
  WA_PCOSB-TRANSACTIONCURRENCY005, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCOSB 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_PCOSB 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_PCOSB INTO WA_PCOSB.


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

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

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

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY001
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY001
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY002
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY002
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY003
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY003
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY004
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY004
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY005
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY005
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY005.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY006
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY006
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY007
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY007
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY007.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY008
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY008
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY008.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY009
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY009
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY009.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY010
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY011
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY011
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY011.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRANSACTIONCURRENCY012
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCOSB-TRANSACTIONCURRENCY012
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSB-TRANSACTIONCURRENCY012.
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_PCOSB_STR, 
MANDT TYPE STRING,
LEDGER TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
CONTROLLINGVALUETYPE TYPE STRING,
VERSION TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONCURRENCY001 TYPE STRING,
TRANSACTIONCURRENCY002 TYPE STRING,
TRANSACTIONCURRENCY003 TYPE STRING,
TRANSACTIONCURRENCY004 TYPE STRING,
TRANSACTIONCURRENCY005 TYPE STRING,
TRANSACTIONCURRENCY006 TYPE STRING,
TRANSACTIONCURRENCY007 TYPE STRING,
TRANSACTIONCURRENCY008 TYPE STRING,
TRANSACTIONCURRENCY009 TYPE STRING,
TRANSACTIONCURRENCY010 TYPE STRING,
TRANSACTIONCURRENCY011 TYPE STRING,
TRANSACTIONCURRENCY012 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCOSB_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_PCOSB_STR-MANDT sy-vline 
WA_PCOSB_STR-LEDGER sy-vline 
WA_PCOSB_STR-CONTROLLINGOBJECT sy-vline 
WA_PCOSB_STR-CONTROLLINGVALUETYPE sy-vline 
WA_PCOSB_STR-VERSION sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY001 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY002 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY003 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY004 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY005 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY006 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY007 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY008 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY009 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY010 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY011 sy-vline 
WA_PCOSB_STR-TRANSACTIONCURRENCY012 sy-vline      INTO ld_text SEPARATED BY SPACE.

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