ABAP Select data from SAP table FIRU_S_PRT_POSTG_ODATA_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIRU_S_PRT_POSTG_ODATA_DOC
*  INTO TABLE @DATA(IT_FIRU_S_PRT_POSTG_ODATA_DOC2).
*--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_FIRU_S_PRT_POSTG_ODATA_DOC INDEX 1 INTO DATA(WA_FIRU_S_PRT_POSTG_ODATA_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIRU_S_PRT_POSTG_ODATA_DOC>-MANDT = 1.
<FIRU_S_PRT_POSTG_ODATA_DOC>-ACTIVITY_KEY = 1.
<FIRU_S_PRT_POSTG_ODATA_DOC>-COMPANY_CODE = 1.
<FIRU_S_PRT_POSTG_ODATA_DOC>-ACCOUNTING_DOCUMENT = 1.
<FIRU_S_PRT_POSTG_ODATA_DOC>-FISCAL_YEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIRU_S_PRT_POSTG_ODATA_DOC-OKTMO, sy-vline,
  WA_FIRU_S_PRT_POSTG_ODATA_DOC-BUDGET_CODE, sy-vline,
  WA_FIRU_S_PRT_POSTG_ODATA_DOC-BUSINESS_PARTNER, sy-vline,
  WA_FIRU_S_PRT_POSTG_ODATA_DOC-ACCOUNT, sy-vline,
  WA_FIRU_S_PRT_POSTG_ODATA_DOC-AMOUNT, sy-vline,
  WA_FIRU_S_PRT_POSTG_ODATA_DOC-IS_REVERSED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIRU_S_PRT_POSTG_ODATA_DOC 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_FIRU_S_PRT_POSTG_ODATA_DOC 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_FIRU_S_PRT_POSTG_ODATA_DOC INTO WA_FIRU_S_PRT_POSTG_ODATA_DOC.


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

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

*Conversion exit OKTMO, internal->external for field OKTMO
CALL FUNCTION 'CONVERSION_EXIT_OKTMO_OUTPUT'
  EXPORTING
    input =                      WA_FIRU_S_PRT_POSTG_ODATA_DOC-OKTMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIRU_S_PRT_POSTG_ODATA_DOC-OKTMO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AC172, internal->external for field AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_FIRU_S_PRT_POSTG_ODATA_DOC-AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIRU_S_PRT_POSTG_ODATA_DOC-AMOUNT.
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_FIRU_S_PRT_POSTG_ODATA_DOC_STR, 
MANDT TYPE STRING,
ACTIVITY_KEY TYPE STRING,
COMPANY_CODE TYPE STRING,
ACCOUNTING_DOCUMENT TYPE STRING,
FISCAL_YEAR TYPE STRING,
OKTMO TYPE STRING,
BUDGET_CODE TYPE STRING,
BUSINESS_PARTNER TYPE STRING,
ACCOUNT TYPE STRING,
AMOUNT TYPE STRING,
IS_REVERSED TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIRU_S_PRT_POSTG_ODATA_DOC_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_FIRU_S_PRT_POSTG_ODATA_DOC_STR-MANDT sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-ACTIVITY_KEY sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-COMPANY_CODE sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-ACCOUNTING_DOCUMENT sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-FISCAL_YEAR sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-OKTMO sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-BUDGET_CODE sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-BUSINESS_PARTNER sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-ACCOUNT sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-AMOUNT sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-IS_REVERSED sy-vline 
WA_FIRU_S_PRT_POSTG_ODATA_DOC_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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