ABAP Select data from SAP table FMICOIT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMICOIT
*  INTO TABLE @DATA(IT_FMICOIT2).
*--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_FMICOIT INDEX 1 INTO DATA(WA_FMICOIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMICOIT>-MANDT = 1.
<FMICOIT>-FMBELNR = 1.
<FMICOIT>-FMBUZEI = 1.
<FMICOIT>-FIKRS = 1.
<FMICOIT>-WRTTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMICOIT-TWAER, sy-vline,
  WA_FMICOIT-TRBTR, sy-vline,
  WA_FMICOIT-FKBTR, sy-vline,
  WA_FMICOIT-FIPOS, sy-vline,
  WA_FMICOIT-GJAHR, sy-vline,
  WA_FMICOIT-PERIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMICOIT 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_FMICOIT 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_FMICOIT INTO WA_FMICOIT.


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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMICOIT-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMICOIT-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMICOIT-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMICOIT-KSTAR.
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_FMICOIT_STR, 
MANDT TYPE STRING,
FMBELNR TYPE STRING,
FMBUZEI TYPE STRING,
FIKRS TYPE STRING,
WRTTP TYPE STRING,
TWAER TYPE STRING,
TRBTR TYPE STRING,
FKBTR TYPE STRING,
FIPOS TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
COBUZEI TYPE STRING,
SGTXT TYPE STRING,
RLDNR TYPE STRING,
VRGNG TYPE STRING,
KSTAR TYPE STRING,
CO_OBJNR TYPE STRING,
BUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMICOIT_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_FMICOIT_STR-MANDT sy-vline 
WA_FMICOIT_STR-FMBELNR sy-vline 
WA_FMICOIT_STR-FMBUZEI sy-vline 
WA_FMICOIT_STR-FIKRS sy-vline 
WA_FMICOIT_STR-WRTTP sy-vline 
WA_FMICOIT_STR-TWAER sy-vline 
WA_FMICOIT_STR-TRBTR sy-vline 
WA_FMICOIT_STR-FKBTR sy-vline 
WA_FMICOIT_STR-FIPOS sy-vline 
WA_FMICOIT_STR-GJAHR sy-vline 
WA_FMICOIT_STR-PERIO sy-vline 
WA_FMICOIT_STR-FISTL sy-vline 
WA_FMICOIT_STR-FONDS sy-vline 
WA_FMICOIT_STR-COBUZEI sy-vline 
WA_FMICOIT_STR-SGTXT sy-vline 
WA_FMICOIT_STR-RLDNR sy-vline 
WA_FMICOIT_STR-VRGNG sy-vline 
WA_FMICOIT_STR-KSTAR sy-vline 
WA_FMICOIT_STR-CO_OBJNR sy-vline 
WA_FMICOIT_STR-BUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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