ABAP Select data from SAP table FKK_MA_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_MA_DATA
*  INTO TABLE @DATA(IT_FKK_MA_DATA2).
*--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_FKK_MA_DATA INDEX 1 INTO DATA(WA_FKK_MA_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_MA_DATA>-CONTROL = 1.
<FKK_MA_DATA>-AKTDB = 1.
<FKK_MA_DATA>-AKTYP = 1.
<FKK_MA_DATA>-XCHNG = 1.
<FKK_MA_DATA>-NRRNG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_MA_DATA-XNREX, sy-vline,
  WA_FKK_MA_DATA-VALDT, sy-vline,
  WA_FKK_MA_DATA-XENQUEUE, sy-vline,
  WA_FKK_MA_DATA-XUPDTASK, sy-vline,
  WA_FKK_MA_DATA-XSAVED, sy-vline,
  WA_FKK_MA_DATA-XTEST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_MA_DATA 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_FKK_MA_DATA 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_FKK_MA_DATA INTO WA_FKK_MA_DATA.


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

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

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

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

*Conversion exit ISOLA, internal->external for field DFSPR
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_DATA-DFSPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_DATA-DFSPR.
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_FKK_MA_DATA_STR, 
CONTROL TYPE STRING,
AKTDB TYPE STRING,
AKTYP TYPE STRING,
XCHNG TYPE STRING,
NRRNG TYPE STRING,
XNREX TYPE STRING,
VALDT TYPE STRING,
XENQUEUE TYPE STRING,
XUPDTASK TYPE STRING,
XSAVED TYPE STRING,
XTEST TYPE STRING,
XDINP TYPE STRING,
RUN_TIMESTAMP TYPE STRING,
XCHDOC TYPE STRING,
XLOCKSREAD TYPE STRING,
VALID_TIMESTAMP TYPE STRING,
HDR TYPE STRING,
MANDT TYPE STRING,
MAKEY TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
LOEVM TYPE STRING,
MABEZ TYPE STRING,
MAALT TYPE STRING,
MABEG TYPE STRING,
MAEND TYPE STRING,
TZONE TYPE STRING,
BEGRU TYPE STRING,
BUKRS TYPE STRING,
AGUID TYPE STRING,
DFSPR TYPE STRING,
TRDAT TYPE STRING,
TRTIM TYPE STRING,
MTDAT TYPE STRING,
MTTIM TYPE STRING,
MTUSR TYPE STRING,
RESTA TYPE STRING,
RETXT TYPE STRING,
BP_TAB TYPE STRING,
BPG_TAB TYPE STRING,
BPGT_TAB TYPE STRING,
BPA_TAB TYPE STRING,
SR_TAB TYPE STRING,
PR_TAB TYPE STRING,
PRT_TAB TYPE STRING,
PRG_TAB TYPE STRING,
PRGT_TAB TYPE STRING,
PRA_TAB TYPE STRING,
AG_TAB TYPE STRING,
AGT_TAB TYPE STRING,
AGI_TAB TYPE STRING,
AGL_TAB TYPE STRING,
AGD_TAB TYPE STRING,
AGA_TAB TYPE STRING,
CH_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_MA_DATA_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_FKK_MA_DATA_STR-CONTROL sy-vline 
WA_FKK_MA_DATA_STR-AKTDB sy-vline 
WA_FKK_MA_DATA_STR-AKTYP sy-vline 
WA_FKK_MA_DATA_STR-XCHNG sy-vline 
WA_FKK_MA_DATA_STR-NRRNG sy-vline 
WA_FKK_MA_DATA_STR-XNREX sy-vline 
WA_FKK_MA_DATA_STR-VALDT sy-vline 
WA_FKK_MA_DATA_STR-XENQUEUE sy-vline 
WA_FKK_MA_DATA_STR-XUPDTASK sy-vline 
WA_FKK_MA_DATA_STR-XSAVED sy-vline 
WA_FKK_MA_DATA_STR-XTEST sy-vline 
WA_FKK_MA_DATA_STR-XDINP sy-vline 
WA_FKK_MA_DATA_STR-RUN_TIMESTAMP sy-vline 
WA_FKK_MA_DATA_STR-XCHDOC sy-vline 
WA_FKK_MA_DATA_STR-XLOCKSREAD sy-vline 
WA_FKK_MA_DATA_STR-VALID_TIMESTAMP sy-vline 
WA_FKK_MA_DATA_STR-HDR sy-vline 
WA_FKK_MA_DATA_STR-MANDT sy-vline 
WA_FKK_MA_DATA_STR-MAKEY sy-vline 
WA_FKK_MA_DATA_STR-GPART sy-vline 
WA_FKK_MA_DATA_STR-VKONT sy-vline 
WA_FKK_MA_DATA_STR-ERDAT sy-vline 
WA_FKK_MA_DATA_STR-ERTIM sy-vline 
WA_FKK_MA_DATA_STR-ERNAM sy-vline 
WA_FKK_MA_DATA_STR-AEDAT sy-vline 
WA_FKK_MA_DATA_STR-AETIM sy-vline 
WA_FKK_MA_DATA_STR-AENAM sy-vline 
WA_FKK_MA_DATA_STR-LOEVM sy-vline 
WA_FKK_MA_DATA_STR-MABEZ sy-vline 
WA_FKK_MA_DATA_STR-MAALT sy-vline 
WA_FKK_MA_DATA_STR-MABEG sy-vline 
WA_FKK_MA_DATA_STR-MAEND sy-vline 
WA_FKK_MA_DATA_STR-TZONE sy-vline 
WA_FKK_MA_DATA_STR-BEGRU sy-vline 
WA_FKK_MA_DATA_STR-BUKRS sy-vline 
WA_FKK_MA_DATA_STR-AGUID sy-vline 
WA_FKK_MA_DATA_STR-DFSPR sy-vline 
WA_FKK_MA_DATA_STR-TRDAT sy-vline 
WA_FKK_MA_DATA_STR-TRTIM sy-vline 
WA_FKK_MA_DATA_STR-MTDAT sy-vline 
WA_FKK_MA_DATA_STR-MTTIM sy-vline 
WA_FKK_MA_DATA_STR-MTUSR sy-vline 
WA_FKK_MA_DATA_STR-RESTA sy-vline 
WA_FKK_MA_DATA_STR-RETXT sy-vline 
WA_FKK_MA_DATA_STR-BP_TAB sy-vline 
WA_FKK_MA_DATA_STR-BPG_TAB sy-vline 
WA_FKK_MA_DATA_STR-BPGT_TAB sy-vline 
WA_FKK_MA_DATA_STR-BPA_TAB sy-vline 
WA_FKK_MA_DATA_STR-SR_TAB sy-vline 
WA_FKK_MA_DATA_STR-PR_TAB sy-vline 
WA_FKK_MA_DATA_STR-PRT_TAB sy-vline 
WA_FKK_MA_DATA_STR-PRG_TAB sy-vline 
WA_FKK_MA_DATA_STR-PRGT_TAB sy-vline 
WA_FKK_MA_DATA_STR-PRA_TAB sy-vline 
WA_FKK_MA_DATA_STR-AG_TAB sy-vline 
WA_FKK_MA_DATA_STR-AGT_TAB sy-vline 
WA_FKK_MA_DATA_STR-AGI_TAB sy-vline 
WA_FKK_MA_DATA_STR-AGL_TAB sy-vline 
WA_FKK_MA_DATA_STR-AGD_TAB sy-vline 
WA_FKK_MA_DATA_STR-AGA_TAB sy-vline 
WA_FKK_MA_DATA_STR-CH_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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