ABAP Select data from SAP table PFM_S_PAP_LOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFM_S_PAP_LOG
*  INTO TABLE @DATA(IT_PFM_S_PAP_LOG2).
*--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_PFM_S_PAP_LOG INDEX 1 INTO DATA(WA_PFM_S_PAP_LOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFM_S_PAP_LOG>-MANDT = 1.
<PFM_S_PAP_LOG>-BUKRS = 1.
<PFM_S_PAP_LOG>-DOCNO = 1.
<PFM_S_PAP_LOG>-GJAHR = 1.
<PFM_S_PAP_LOG>-MSGSEQ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFM_S_PAP_LOG-GJAHR_DOC, sy-vline,
  WA_PFM_S_PAP_LOG-BELNR, sy-vline,
  WA_PFM_S_PAP_LOG-BUZEI, sy-vline,
  WA_PFM_S_PAP_LOG-MSGID, sy-vline,
  WA_PFM_S_PAP_LOG-MSGTY, sy-vline,
  WA_PFM_S_PAP_LOG-MSGNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFM_S_PAP_LOG 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_PFM_S_PAP_LOG 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_PFM_S_PAP_LOG INTO WA_PFM_S_PAP_LOG.


*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 GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFM_S_PAP_LOG-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFM_S_PAP_LOG-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFM_S_PAP_LOG-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFM_S_PAP_LOG-BELNR.
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_PFM_S_PAP_LOG_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
DOCNO TYPE STRING,
GJAHR TYPE STRING,
MSGSEQ TYPE STRING,
GJAHR_DOC TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSG_PROCESS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFM_S_PAP_LOG_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_PFM_S_PAP_LOG_STR-MANDT sy-vline 
WA_PFM_S_PAP_LOG_STR-BUKRS sy-vline 
WA_PFM_S_PAP_LOG_STR-DOCNO sy-vline 
WA_PFM_S_PAP_LOG_STR-GJAHR sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGSEQ sy-vline 
WA_PFM_S_PAP_LOG_STR-GJAHR_DOC sy-vline 
WA_PFM_S_PAP_LOG_STR-BELNR sy-vline 
WA_PFM_S_PAP_LOG_STR-BUZEI sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGID sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGTY sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGNO sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGV1 sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGV2 sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGV3 sy-vline 
WA_PFM_S_PAP_LOG_STR-MSGV4 sy-vline 
WA_PFM_S_PAP_LOG_STR-MSG_PROCESS sy-vline      INTO ld_text SEPARATED BY SPACE.

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