ABAP Select data from SAP table PWBRKPSDOCCHG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWBRKPSDOCCHG
*  INTO TABLE @DATA(IT_PWBRKPSDOCCHG2).
*--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_PWBRKPSDOCCHG INDEX 1 INTO DATA(WA_PWBRKPSDOCCHG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWBRKPSDOCCHG>-MANDT = 1.
<PWBRKPSDOCCHG>-PERSONNELSETTLEMENTDOCUMENT = 1.
<PWBRKPSDOCCHG>-SETTLMTDOCTYPE = 1.
<PWBRKPSDOCCHG>-COMPANYCODE = 1.
<PWBRKPSDOCCHG>-SALESORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWBRKPSDOCCHG-DISTRIBUTIONCHANNEL, sy-vline,
  WA_PWBRKPSDOCCHG-DIVISION, sy-vline,
  WA_PWBRKPSDOCCHG-PERSONNELCOSTCENTER, sy-vline,
  WA_PWBRKPSDOCCHG-PERSSETTLMTACCTGTRANSFSTS, sy-vline,
  WA_PWBRKPSDOCCHG-POSTINGDATE, sy-vline,
  WA_PWBRKPSDOCCHG-SETTLMTDOCACTIVITYREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWBRKPSDOCCHG 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_PWBRKPSDOCCHG 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_PWBRKPSDOCCHG INTO WA_PWBRKPSDOCCHG.


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

*Conversion exit ALPHA, internal->external for field PERSONNELCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWBRKPSDOCCHG-PERSONNELCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBRKPSDOCCHG-PERSONNELCOSTCENTER.
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_PWBRKPSDOCCHG_STR, 
MANDT TYPE STRING,
PERSONNELSETTLEMENTDOCUMENT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
PERSONNELCOSTCENTER TYPE STRING,
PERSSETTLMTACCTGTRANSFSTS TYPE STRING,
POSTINGDATE TYPE STRING,
SETTLMTDOCACTIVITYREASON TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
FISCALPERIOD TYPE STRING,
SETTLMTAPPLSTS TYPE STRING,
SETTLMTAPPLSTSGRP TYPE STRING,
PERSONWORKAGREEMENT TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWBRKPSDOCCHG_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_PWBRKPSDOCCHG_STR-MANDT sy-vline 
WA_PWBRKPSDOCCHG_STR-PERSONNELSETTLEMENTDOCUMENT sy-vline 
WA_PWBRKPSDOCCHG_STR-SETTLMTDOCTYPE sy-vline 
WA_PWBRKPSDOCCHG_STR-COMPANYCODE sy-vline 
WA_PWBRKPSDOCCHG_STR-SALESORGANIZATION sy-vline 
WA_PWBRKPSDOCCHG_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PWBRKPSDOCCHG_STR-DIVISION sy-vline 
WA_PWBRKPSDOCCHG_STR-PERSONNELCOSTCENTER sy-vline 
WA_PWBRKPSDOCCHG_STR-PERSSETTLMTACCTGTRANSFSTS sy-vline 
WA_PWBRKPSDOCCHG_STR-POSTINGDATE sy-vline 
WA_PWBRKPSDOCCHG_STR-SETTLMTDOCACTIVITYREASON sy-vline 
WA_PWBRKPSDOCCHG_STR-PAYMENTREFERENCE sy-vline 
WA_PWBRKPSDOCCHG_STR-ASSIGNMENTREFERENCE sy-vline 
WA_PWBRKPSDOCCHG_STR-FISCALPERIOD sy-vline 
WA_PWBRKPSDOCCHG_STR-SETTLMTAPPLSTS sy-vline 
WA_PWBRKPSDOCCHG_STR-SETTLMTAPPLSTSGRP sy-vline 
WA_PWBRKPSDOCCHG_STR-PERSONWORKAGREEMENT sy-vline 
WA_PWBRKPSDOCCHG_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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