ABAP Select data from SAP table PCOSREVREASSGMT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCOSREVREASSGMT
*  INTO TABLE @DATA(IT_PCOSREVREASSGMT2).
*--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_PCOSREVREASSGMT INDEX 1 INTO DATA(WA_PCOSREVREASSGMT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCOSREVREASSGMT>-MANDT = 1.
<PCOSREVREASSGMT>-FISCALYEAR = 1.
<PCOSREVREASSGMT>-REFERENCEDOCUMENT = 1.
<PCOSREVREASSGMT>-CONTROLLINGAREA = 1.
<PCOSREVREASSGMT>-LEDGERGLLINEITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCOSREVREASSGMT-COMPANYCODE, sy-vline,
  WA_PCOSREVREASSGMT-COMPANYCODENAME, sy-vline,
  WA_PCOSREVREASSGMT-SENDERCOMPANYCODE, sy-vline,
  WA_PCOSREVREASSGMT-ACCOUNTINGDOCUMENT, sy-vline,
  WA_PCOSREVREASSGMT-ACCOUNTINGDOCUMENTHEADERTEXT, sy-vline,
  WA_PCOSREVREASSGMT-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCOSREVREASSGMT 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_PCOSREVREASSGMT 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_PCOSREVREASSGMT INTO WA_PCOSREVREASSGMT.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PCOSREVREASSGMT-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSREVREASSGMT-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field REVERSALREFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCOSREVREASSGMT-REVERSALREFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOSREVREASSGMT-REVERSALREFERENCEDOCUMENT.
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_PCOSREVREASSGMT_STR, 
MANDT TYPE STRING,
FISCALYEAR TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
SENDERCOMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTHEADERTEXT TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
PREDECESSORREFERENCEDOCUMENT TYPE STRING,
REVERSALREFERENCEDOCUMENT TYPE STRING,
GLOBALCURRENCY TYPE STRING,
AMOUNTINGLOBALCURRENCY TYPE STRING,
CONTROLLINGBUSTRANSACTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCOSREVREASSGMT_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_PCOSREVREASSGMT_STR-MANDT sy-vline 
WA_PCOSREVREASSGMT_STR-FISCALYEAR sy-vline 
WA_PCOSREVREASSGMT_STR-REFERENCEDOCUMENT sy-vline 
WA_PCOSREVREASSGMT_STR-CONTROLLINGAREA sy-vline 
WA_PCOSREVREASSGMT_STR-LEDGERGLLINEITEM sy-vline 
WA_PCOSREVREASSGMT_STR-COMPANYCODE sy-vline 
WA_PCOSREVREASSGMT_STR-COMPANYCODENAME sy-vline 
WA_PCOSREVREASSGMT_STR-SENDERCOMPANYCODE sy-vline 
WA_PCOSREVREASSGMT_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PCOSREVREASSGMT_STR-ACCOUNTINGDOCUMENTHEADERTEXT sy-vline 
WA_PCOSREVREASSGMT_STR-DOCUMENTDATE sy-vline 
WA_PCOSREVREASSGMT_STR-POSTINGDATE sy-vline 
WA_PCOSREVREASSGMT_STR-FISCALPERIOD sy-vline 
WA_PCOSREVREASSGMT_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_PCOSREVREASSGMT_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_PCOSREVREASSGMT_STR-ISREVERSAL sy-vline 
WA_PCOSREVREASSGMT_STR-ISREVERSED sy-vline 
WA_PCOSREVREASSGMT_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PCOSREVREASSGMT_STR-EXCHANGERATEDATE sy-vline 
WA_PCOSREVREASSGMT_STR-PREDECESSORREFERENCEDOCUMENT sy-vline 
WA_PCOSREVREASSGMT_STR-REVERSALREFERENCEDOCUMENT sy-vline 
WA_PCOSREVREASSGMT_STR-GLOBALCURRENCY sy-vline 
WA_PCOSREVREASSGMT_STR-AMOUNTINGLOBALCURRENCY sy-vline 
WA_PCOSREVREASSGMT_STR-CONTROLLINGBUSTRANSACTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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