ABAP Select data from SAP table FMEF_IF_POS_ACCOUNTING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMEF_IF_POS_ACCOUNTING
*  INTO TABLE @DATA(IT_FMEF_IF_POS_ACCOUNTING2).
*--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_FMEF_IF_POS_ACCOUNTING INDEX 1 INTO DATA(WA_FMEF_IF_POS_ACCOUNTING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMEF_IF_POS_ACCOUNTING>-FIPEX = 1.
<FMEF_IF_POS_ACCOUNTING>-FISTL = 1.
<FMEF_IF_POS_ACCOUNTING>-FKBER = 1.
<FMEF_IF_POS_ACCOUNTING>-GRANT_NBR = 1.
<FMEF_IF_POS_ACCOUNTING>-SAKNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMEF_IF_POS_ACCOUNTING-GEBER, sy-vline,
  WA_FMEF_IF_POS_ACCOUNTING-NPLNR, sy-vline,
  WA_FMEF_IF_POS_ACCOUNTING-VORNR, sy-vline,
  WA_FMEF_IF_POS_ACCOUNTING-AUFNR, sy-vline,
  WA_FMEF_IF_POS_ACCOUNTING-KOSTL, sy-vline,
  WA_FMEF_IF_POS_ACCOUNTING-POSID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMEF_IF_POS_ACCOUNTING 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_FMEF_IF_POS_ACCOUNTING 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_FMEF_IF_POS_ACCOUNTING INTO WA_FMEF_IF_POS_ACCOUNTING.


*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 FIPEX, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FIPEX_OUTPUT'
  EXPORTING
    input =                      WA_FMEF_IF_POS_ACCOUNTING-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEF_IF_POS_ACCOUNTING-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FMEF_IF_POS_ACCOUNTING-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEF_IF_POS_ACCOUNTING-VORNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_FMEF_IF_POS_ACCOUNTING-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEF_IF_POS_ACCOUNTING-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FMEF_IF_POS_ACCOUNTING-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEF_IF_POS_ACCOUNTING-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_FMEF_IF_POS_ACCOUNTING-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEF_IF_POS_ACCOUNTING-IMKEY.
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_FMEF_IF_POS_ACCOUNTING_STR, 
FIPEX TYPE STRING,
FISTL TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
SAKNR TYPE STRING,
GEBER TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
AUFNR TYPE STRING,
KOSTL TYPE STRING,
POSID TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
LNRZA TYPE STRING,
MATNR TYPE STRING,
GSBER TYPE STRING,
MEASURE TYPE STRING,
IMKEY TYPE STRING,
DABRZ TYPE STRING,
BUDGET_PD TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMEF_IF_POS_ACCOUNTING_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_FMEF_IF_POS_ACCOUNTING_STR-FIPEX sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-FISTL sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-FKBER sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-GRANT_NBR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-SAKNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-GEBER sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-NPLNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-VORNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-AUFNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-KOSTL sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-POSID sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-LIFNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-KUNNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-LNRZA sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-MATNR sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-GSBER sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-MEASURE sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-IMKEY sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-DABRZ sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-BUDGET_PD sy-vline 
WA_FMEF_IF_POS_ACCOUNTING_STR-DUMMY_INCL_EEW_COBL sy-vline      INTO ld_text SEPARATED BY SPACE.

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