ABAP Select data from SAP table FARR_S_POSTING_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FARR_S_POSTING_ATTR
*  INTO TABLE @DATA(IT_FARR_S_POSTING_ATTR2).
*--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_FARR_S_POSTING_ATTR INDEX 1 INTO DATA(WA_FARR_S_POSTING_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FARR_S_POSTING_ATTR>-GJAHR = 1.
<FARR_S_POSTING_ATTR>-POPER = 1.
<FARR_S_POSTING_ATTR>-BETRW = 1.
<FARR_S_POSTING_ATTR>-WAERS = 1.
<FARR_S_POSTING_ATTR>-BETRH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FARR_S_POSTING_ATTR-HWAER, sy-vline,
  WA_FARR_S_POSTING_ATTR-BETR2, sy-vline,
  WA_FARR_S_POSTING_ATTR-HWAE2, sy-vline,
  WA_FARR_S_POSTING_ATTR-BETR3, sy-vline,
  WA_FARR_S_POSTING_ATTR-HWAE3, sy-vline,
  WA_FARR_S_POSTING_ATTR-CONTRACT_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FARR_S_POSTING_ATTR 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_FARR_S_POSTING_ATTR 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_FARR_S_POSTING_ATTR INTO WA_FARR_S_POSTING_ATTR.


*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_FARR_S_POSTING_ATTR-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_POSTING_ATTR-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field SRCDOC_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_POSTING_ATTR-SRCDOC_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_POSTING_ATTR-SRCDOC_LOGSYS.
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_FARR_S_POSTING_ATTR_STR, 
GJAHR TYPE STRING,
POPER TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BETRH TYPE STRING,
HWAER TYPE STRING,
BETR2 TYPE STRING,
HWAE2 TYPE STRING,
BETR3 TYPE STRING,
HWAE3 TYPE STRING,
CONTRACT_ID TYPE STRING,
HKONT TYPE STRING,
STATISTIC TYPE STRING,
POB_TYPE TYPE STRING,
SHKZG_VA TYPE STRING,
SPEC_INDICATOR TYPE STRING,
INVOICE_GUID TYPE STRING,
SRCDOC_COMP TYPE STRING,
SRCDOC_LOGSYS TYPE STRING,
SRCDOC_TYPE TYPE STRING,
SRCDOC_ID TYPE STRING,
DUMMY_POSTING_INCL_EEW_PS TYPE STRING,
REP_EEW_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FARR_S_POSTING_ATTR_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_FARR_S_POSTING_ATTR_STR-GJAHR sy-vline 
WA_FARR_S_POSTING_ATTR_STR-POPER sy-vline 
WA_FARR_S_POSTING_ATTR_STR-BETRW sy-vline 
WA_FARR_S_POSTING_ATTR_STR-WAERS sy-vline 
WA_FARR_S_POSTING_ATTR_STR-BETRH sy-vline 
WA_FARR_S_POSTING_ATTR_STR-HWAER sy-vline 
WA_FARR_S_POSTING_ATTR_STR-BETR2 sy-vline 
WA_FARR_S_POSTING_ATTR_STR-HWAE2 sy-vline 
WA_FARR_S_POSTING_ATTR_STR-BETR3 sy-vline 
WA_FARR_S_POSTING_ATTR_STR-HWAE3 sy-vline 
WA_FARR_S_POSTING_ATTR_STR-CONTRACT_ID sy-vline 
WA_FARR_S_POSTING_ATTR_STR-HKONT sy-vline 
WA_FARR_S_POSTING_ATTR_STR-STATISTIC sy-vline 
WA_FARR_S_POSTING_ATTR_STR-POB_TYPE sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SHKZG_VA sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SPEC_INDICATOR sy-vline 
WA_FARR_S_POSTING_ATTR_STR-INVOICE_GUID sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SRCDOC_COMP sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SRCDOC_LOGSYS sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SRCDOC_TYPE sy-vline 
WA_FARR_S_POSTING_ATTR_STR-SRCDOC_ID sy-vline 
WA_FARR_S_POSTING_ATTR_STR-DUMMY_POSTING_INCL_EEW_PS sy-vline 
WA_FARR_S_POSTING_ATTR_STR-REP_EEW_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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