ABAP Select data from SAP table FMCFABS into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMCFABS 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 FMCFABS. 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 FMCFABS 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_FMCFABS TYPE STANDARD TABLE OF FMCFABS,
      WA_FMCFABS TYPE FMCFABS,
      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: <FMCFABS> TYPE FMCFABS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCFABS
*  INTO TABLE @DATA(IT_FMCFABS2).
*--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_FMCFABS INDEX 1 INTO DATA(WA_FMCFABS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCFABS>-MANDT = 1.
<FMCFABS>-GJAHR = 1.
<FMCFABS>-CF_WRTTP = 1.
<FMCFABS>-OBJNR = 1.
<FMCFABS>-POSIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCFABS-GEBER, sy-vline,
  WA_FMCFABS-FAREA, sy-vline,
  WA_FMCFABS-OBJNR_E, sy-vline,
  WA_FMCFABS-POSIT_E, sy-vline,
  WA_FMCFABS-GEBER_E, sy-vline,
  WA_FMCFABS-FAREA_E, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCFABS 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_FMCFABS 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_FMCFABS INTO WA_FMCFABS.


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

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

*Conversion exit GJAHR, internal->external for field GNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCFABS-GNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCFABS-GNJHR.
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_FMCFABS_STR, 
MANDT TYPE STRING,
GJAHR TYPE STRING,
CF_WRTTP TYPE STRING,
OBJNR TYPE STRING,
POSIT TYPE STRING,
GEBER TYPE STRING,
FAREA TYPE STRING,
OBJNR_E TYPE STRING,
POSIT_E TYPE STRING,
GEBER_E TYPE STRING,
FAREA_E TYPE STRING,
VERSN TYPE STRING,
XREAL TYPE STRING,
FM_WRTTP TYPE STRING,
GNJHR TYPE STRING,
STATS TYPE STRING,
CFRULE TYPE STRING,
WAERS TYPE STRING,
CF_BTR TYPE STRING,
CF_BUDGET TYPE STRING,
FAREA_I TYPE STRING,
OBJNR_I TYPE STRING,
POSIT_I TYPE STRING,
FAREA_I_E TYPE STRING,
OBJNR_I_E TYPE STRING,
POSIT_I_E TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCFABS_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_FMCFABS_STR-MANDT sy-vline 
WA_FMCFABS_STR-GJAHR sy-vline 
WA_FMCFABS_STR-CF_WRTTP sy-vline 
WA_FMCFABS_STR-OBJNR sy-vline 
WA_FMCFABS_STR-POSIT sy-vline 
WA_FMCFABS_STR-GEBER sy-vline 
WA_FMCFABS_STR-FAREA sy-vline 
WA_FMCFABS_STR-OBJNR_E sy-vline 
WA_FMCFABS_STR-POSIT_E sy-vline 
WA_FMCFABS_STR-GEBER_E sy-vline 
WA_FMCFABS_STR-FAREA_E sy-vline 
WA_FMCFABS_STR-VERSN sy-vline 
WA_FMCFABS_STR-XREAL sy-vline 
WA_FMCFABS_STR-FM_WRTTP sy-vline 
WA_FMCFABS_STR-GNJHR sy-vline 
WA_FMCFABS_STR-STATS sy-vline 
WA_FMCFABS_STR-CFRULE sy-vline 
WA_FMCFABS_STR-WAERS sy-vline 
WA_FMCFABS_STR-CF_BTR sy-vline 
WA_FMCFABS_STR-CF_BUDGET sy-vline 
WA_FMCFABS_STR-FAREA_I sy-vline 
WA_FMCFABS_STR-OBJNR_I sy-vline 
WA_FMCFABS_STR-POSIT_I sy-vline 
WA_FMCFABS_STR-FAREA_I_E sy-vline 
WA_FMCFABS_STR-OBJNR_I_E sy-vline 
WA_FMCFABS_STR-POSIT_I_E sy-vline      INTO ld_text SEPARATED BY SPACE.

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