ABAP Select data from SAP table FMBLEXTCS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMBLEXTCS
*  INTO TABLE @DATA(IT_FMBLEXTCS2).
*--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_FMBLEXTCS INDEX 1 INTO DATA(WA_FMBLEXTCS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMBLEXTCS>-FM_AREA = 1.
<FMBLEXTCS>-FISC_YEAR = 1.
<FMBLEXTCS>-CASH_YEAR = 1.
<FMBLEXTCS>-CATEGORY = 1.
<FMBLEXTCS>-TRANSAC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMBLEXTCS-COMP_CODE, sy-vline,
  WA_FMBLEXTCS-VALUE_TYPE, sy-vline,
  WA_FMBLEXTCS-AMT_TYPE, sy-vline,
  WA_FMBLEXTCS-STAT_IND, sy-vline,
  WA_FMBLEXTCS-CARRYFWD_LEVEL, sy-vline,
  WA_FMBLEXTCS-FUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMBLEXTCS 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_FMBLEXTCS 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_FMBLEXTCS INTO WA_FMBLEXTCS.


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

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

*Conversion exit FMCIL, internal->external for field CMMT_ITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMBLEXTCS-CMMT_ITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMBLEXTCS-CMMT_ITEM.
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_FMBLEXTCS_STR, 
FM_AREA TYPE STRING,
FISC_YEAR TYPE STRING,
CASH_YEAR TYPE STRING,
CATEGORY TYPE STRING,
TRANSAC TYPE STRING,
COMP_CODE TYPE STRING,
VALUE_TYPE TYPE STRING,
AMT_TYPE TYPE STRING,
STAT_IND TYPE STRING,
CARRYFWD_LEVEL TYPE STRING,
FUND TYPE STRING,
BUDGET_PERIOD TYPE STRING,
FUNDS_CTR TYPE STRING,
CMMT_ITEM TYPE STRING,
FUNC_AREA TYPE STRING,
FMVOR TYPE STRING,
MEASURE TYPE STRING,
CISTRID TYPE STRING,
CISUB1 TYPE STRING,
CISUB2 TYPE STRING,
CISUB3 TYPE STRING,
CISUB4 TYPE STRING,
CISUB5 TYPE STRING,
FCSTRID TYPE STRING,
FCSUB1 TYPE STRING,
FCSUB2 TYPE STRING,
FCSUB3 TYPE STRING,
FDSTRID TYPE STRING,
FDSUB1 TYPE STRING,
FDSUB2 TYPE STRING,
FNSTRID TYPE STRING,
FNSUB1 TYPE STRING,
FNSUB2 TYPE STRING,
FNSUB3 TYPE STRING,
BLDOCSEQ TYPE STRING,
TARGET1 TYPE STRING,
TARGET2 TYPE STRING,
DIFF_CASHFISC TYPE STRING,
AMTSIGN TYPE STRING,
CFSTAT TYPE STRING,
RAP TYPE STRING,
BL_DOC_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMBLEXTCS_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_FMBLEXTCS_STR-FM_AREA sy-vline 
WA_FMBLEXTCS_STR-FISC_YEAR sy-vline 
WA_FMBLEXTCS_STR-CASH_YEAR sy-vline 
WA_FMBLEXTCS_STR-CATEGORY sy-vline 
WA_FMBLEXTCS_STR-TRANSAC sy-vline 
WA_FMBLEXTCS_STR-COMP_CODE sy-vline 
WA_FMBLEXTCS_STR-VALUE_TYPE sy-vline 
WA_FMBLEXTCS_STR-AMT_TYPE sy-vline 
WA_FMBLEXTCS_STR-STAT_IND sy-vline 
WA_FMBLEXTCS_STR-CARRYFWD_LEVEL sy-vline 
WA_FMBLEXTCS_STR-FUND sy-vline 
WA_FMBLEXTCS_STR-BUDGET_PERIOD sy-vline 
WA_FMBLEXTCS_STR-FUNDS_CTR sy-vline 
WA_FMBLEXTCS_STR-CMMT_ITEM sy-vline 
WA_FMBLEXTCS_STR-FUNC_AREA sy-vline 
WA_FMBLEXTCS_STR-FMVOR sy-vline 
WA_FMBLEXTCS_STR-MEASURE sy-vline 
WA_FMBLEXTCS_STR-CISTRID sy-vline 
WA_FMBLEXTCS_STR-CISUB1 sy-vline 
WA_FMBLEXTCS_STR-CISUB2 sy-vline 
WA_FMBLEXTCS_STR-CISUB3 sy-vline 
WA_FMBLEXTCS_STR-CISUB4 sy-vline 
WA_FMBLEXTCS_STR-CISUB5 sy-vline 
WA_FMBLEXTCS_STR-FCSTRID sy-vline 
WA_FMBLEXTCS_STR-FCSUB1 sy-vline 
WA_FMBLEXTCS_STR-FCSUB2 sy-vline 
WA_FMBLEXTCS_STR-FCSUB3 sy-vline 
WA_FMBLEXTCS_STR-FDSTRID sy-vline 
WA_FMBLEXTCS_STR-FDSUB1 sy-vline 
WA_FMBLEXTCS_STR-FDSUB2 sy-vline 
WA_FMBLEXTCS_STR-FNSTRID sy-vline 
WA_FMBLEXTCS_STR-FNSUB1 sy-vline 
WA_FMBLEXTCS_STR-FNSUB2 sy-vline 
WA_FMBLEXTCS_STR-FNSUB3 sy-vline 
WA_FMBLEXTCS_STR-BLDOCSEQ sy-vline 
WA_FMBLEXTCS_STR-TARGET1 sy-vline 
WA_FMBLEXTCS_STR-TARGET2 sy-vline 
WA_FMBLEXTCS_STR-DIFF_CASHFISC sy-vline 
WA_FMBLEXTCS_STR-AMTSIGN sy-vline 
WA_FMBLEXTCS_STR-CFSTAT sy-vline 
WA_FMBLEXTCS_STR-RAP sy-vline 
WA_FMBLEXTCS_STR-BL_DOC_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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