ABAP Select data from SAP table MCSFISK 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 MCSFISK 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 MCSFISK. 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 MCSFISK 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_MCSFISK TYPE STANDARD TABLE OF MCSFISK,
      WA_MCSFISK TYPE MCSFISK,
      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: <MCSFISK> TYPE MCSFISK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCSFISK
*  INTO TABLE @DATA(IT_MCSFISK2).
*--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_MCSFISK INDEX 1 INTO DATA(WA_MCSFISK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCSFISK>-SSOUR = 1.
<MCSFISK>-AUFNR = 1.
<MCSFISK>-AUFPL = 1.
<MCSFISK>-RSNUM = 1.
<MCSFISK>-WERKSM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCSFISK-MATNRM, sy-vline,
  WA_MCSFISK-KSTAR, sy-vline,
  WA_MCSFISK-KOSTL, sy-vline,
  WA_MCSFISK-LSTAR, sy-vline,
  WA_MCSFISK-WERKSK, sy-vline,
  WA_MCSFISK-MATNRK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCSFISK 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_MCSFISK 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_MCSFISK INTO WA_MCSFISK.


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

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

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

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

*Conversion exit MATN1, internal->external for field MATNRK
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MCSFISK-MATNRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCSFISK-MATNRK.
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_MCSFISK_STR, 
SSOUR TYPE STRING,
AUFNR TYPE STRING,
AUFPL TYPE STRING,
RSNUM TYPE STRING,
WERKSM TYPE STRING,
MATNRM TYPE STRING,
KSTAR TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
WERKSK TYPE STRING,
MATNRK TYPE STRING,
ARBIDK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCSFISK_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_MCSFISK_STR-SSOUR sy-vline 
WA_MCSFISK_STR-AUFNR sy-vline 
WA_MCSFISK_STR-AUFPL sy-vline 
WA_MCSFISK_STR-RSNUM sy-vline 
WA_MCSFISK_STR-WERKSM sy-vline 
WA_MCSFISK_STR-MATNRM sy-vline 
WA_MCSFISK_STR-KSTAR sy-vline 
WA_MCSFISK_STR-KOSTL sy-vline 
WA_MCSFISK_STR-LSTAR sy-vline 
WA_MCSFISK_STR-WERKSK sy-vline 
WA_MCSFISK_STR-MATNRK sy-vline 
WA_MCSFISK_STR-ARBIDK sy-vline      INTO ld_text SEPARATED BY SPACE.

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