ABAP Select data from SAP table IFMFUSE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMFUSE
*  INTO TABLE @DATA(IT_IFMFUSE2).
*--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_IFMFUSE INDEX 1 INTO DATA(WA_IFMFUSE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMFUSE>-MANDT = 1.
<IFMFUSE>-FIKRS = 1.
<IFMFUSE>-FINUSE = 1.
<IFMFUSE>-DATAB = 1.
<IFMFUSE>-DATBIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMFUSE-ERFNAME, sy-vline,
  WA_IFMFUSE-ERFDAT, sy-vline,
  WA_IFMFUSE-AENNAME, sy-vline,
  WA_IFMFUSE-AENDAT, sy-vline,
  WA_IFMFUSE-DEPT_REG, sy-vline,
  WA_IFMFUSE-DEPT_TRAN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMFUSE 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_IFMFUSE 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_IFMFUSE INTO WA_IFMFUSE.


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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IFMFUSE-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMFUSE-SPRAS.
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_IFMFUSE_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
FINUSE TYPE STRING,
DATAB TYPE STRING,
DATBIS TYPE STRING,
ERFNAME TYPE STRING,
ERFDAT TYPE STRING,
AENNAME TYPE STRING,
AENDAT TYPE STRING,
DEPT_REG TYPE STRING,
DEPT_TRAN TYPE STRING,
FISCAL_YR TYPE STRING,
MAIN_ACCT TYPE STRING,
SUB_ACCT TYPE STRING,
SPLIT_NUM TYPE STRING,
FACTSII_REL TYPE STRING,
PREPARERID TYPE STRING,
CERTIFIERID TYPE STRING,
DUMMY_FMAF_INCL_EEW_PS TYPE STRING,
GTAS_REL TYPE STRING,
SUBLEVL TYPE STRING,
AGENCID TYPE STRING,
ALTRAID TYPE STRING,
BEGPER TYPE STRING,
ENDPER TYPE STRING,
AVTYPE TYPE STRING,
SPRAS TYPE STRING,
BEZEICH TYPE STRING,
BESCHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMFUSE_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_IFMFUSE_STR-MANDT sy-vline 
WA_IFMFUSE_STR-FIKRS sy-vline 
WA_IFMFUSE_STR-FINUSE sy-vline 
WA_IFMFUSE_STR-DATAB sy-vline 
WA_IFMFUSE_STR-DATBIS sy-vline 
WA_IFMFUSE_STR-ERFNAME sy-vline 
WA_IFMFUSE_STR-ERFDAT sy-vline 
WA_IFMFUSE_STR-AENNAME sy-vline 
WA_IFMFUSE_STR-AENDAT sy-vline 
WA_IFMFUSE_STR-DEPT_REG sy-vline 
WA_IFMFUSE_STR-DEPT_TRAN sy-vline 
WA_IFMFUSE_STR-FISCAL_YR sy-vline 
WA_IFMFUSE_STR-MAIN_ACCT sy-vline 
WA_IFMFUSE_STR-SUB_ACCT sy-vline 
WA_IFMFUSE_STR-SPLIT_NUM sy-vline 
WA_IFMFUSE_STR-FACTSII_REL sy-vline 
WA_IFMFUSE_STR-PREPARERID sy-vline 
WA_IFMFUSE_STR-CERTIFIERID sy-vline 
WA_IFMFUSE_STR-DUMMY_FMAF_INCL_EEW_PS sy-vline 
WA_IFMFUSE_STR-GTAS_REL sy-vline 
WA_IFMFUSE_STR-SUBLEVL sy-vline 
WA_IFMFUSE_STR-AGENCID sy-vline 
WA_IFMFUSE_STR-ALTRAID sy-vline 
WA_IFMFUSE_STR-BEGPER sy-vline 
WA_IFMFUSE_STR-ENDPER sy-vline 
WA_IFMFUSE_STR-AVTYPE sy-vline 
WA_IFMFUSE_STR-SPRAS sy-vline 
WA_IFMFUSE_STR-BEZEICH sy-vline 
WA_IFMFUSE_STR-BESCHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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