ABAP Select data from SAP table FCOV_MIG_TKA00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FCOV_MIG_TKA00 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 FCOV_MIG_TKA00. 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 FCOV_MIG_TKA00 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_FCOV_MIG_TKA00 TYPE STANDARD TABLE OF FCOV_MIG_TKA00,
      WA_FCOV_MIG_TKA00 TYPE FCOV_MIG_TKA00,
      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: <FCOV_MIG_TKA00> TYPE FCOV_MIG_TKA00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FCOV_MIG_TKA00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FCOV_MIG_TKA00
  INTO TABLE IT_FCOV_MIG_TKA00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCOV_MIG_TKA00
*  INTO TABLE @DATA(IT_FCOV_MIG_TKA002).
*--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_FCOV_MIG_TKA00 INDEX 1 INTO DATA(WA_FCOV_MIG_TKA002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FCOV_MIG_TKA00 ASSIGNING <FCOV_MIG_TKA00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCOV_MIG_TKA00>-MANDT = 1.
<FCOV_MIG_TKA00>-KOKRS = 1.
<FCOV_MIG_TKA00>-GJAHR = 1.
<FCOV_MIG_TKA00>-BIS_GJAHR = 1.
<FCOV_MIG_TKA00>-KOSTS = 1.

ENDLOOP.

LOOP AT IT_FCOV_MIG_TKA00 INTO WA_FCOV_MIG_TKA00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCOV_MIG_TKA00-AUFTR, sy-vline,
  WA_FCOV_MIG_TKA00-PRJKT, sy-vline,
  WA_FCOV_MIG_TKA00-OAUFT, sy-vline,
  WA_FCOV_MIG_TKA00-RKBUK, sy-vline,
  WA_FCOV_MIG_TKA00-ERGBR, sy-vline,
  WA_FCOV_MIG_TKA00-KKALK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCOV_MIG_TKA00 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_FCOV_MIG_TKA00 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_FCOV_MIG_TKA00 INTO WA_FCOV_MIG_TKA00.


*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_FCOV_MIG_TKA00-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_MIG_TKA00-GJAHR.
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_FCOV_MIG_TKA00_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
GJAHR TYPE STRING,
BIS_GJAHR TYPE STRING,
KOSTS TYPE STRING,
AUFTR TYPE STRING,
PRJKT TYPE STRING,
OAUFT TYPE STRING,
RKBUK TYPE STRING,
ERGBR TYPE STRING,
KKALK TYPE STRING,
HHPLN TYPE STRING,
RABWG TYPE STRING,
RMBST TYPE STRING,
MATST TYPE STRING,
RMKAL TYPE STRING,
ANLAA TYPE STRING,
RFKUN TYPE STRING,
RFDIS TYPE STRING,
GLSYS TYPE STRING,
RPPER TYPE STRING,
RVAUF TYPE STRING,
OBLVB TYPE STRING,
RVFAK TYPE STRING,
RFZAL TYPE STRING,
RFANZ TYPE STRING,
ALLEW TYPE STRING,
PCRCH TYPE STRING,
KAEIN TYPE STRING,
COABC TYPE STRING,
ACTPA TYPE STRING,
PCTRP TYPE STRING,
REACTIVE TYPE STRING,
ADD_HIER1 TYPE STRING,
ADD_HIER2 TYPE STRING,
KE_ADD_HIER1 TYPE STRING,
KE_ADD_HIER2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCOV_MIG_TKA00_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_FCOV_MIG_TKA00_STR-MANDT sy-vline 
WA_FCOV_MIG_TKA00_STR-KOKRS sy-vline 
WA_FCOV_MIG_TKA00_STR-GJAHR sy-vline 
WA_FCOV_MIG_TKA00_STR-BIS_GJAHR sy-vline 
WA_FCOV_MIG_TKA00_STR-KOSTS sy-vline 
WA_FCOV_MIG_TKA00_STR-AUFTR sy-vline 
WA_FCOV_MIG_TKA00_STR-PRJKT sy-vline 
WA_FCOV_MIG_TKA00_STR-OAUFT sy-vline 
WA_FCOV_MIG_TKA00_STR-RKBUK sy-vline 
WA_FCOV_MIG_TKA00_STR-ERGBR sy-vline 
WA_FCOV_MIG_TKA00_STR-KKALK sy-vline 
WA_FCOV_MIG_TKA00_STR-HHPLN sy-vline 
WA_FCOV_MIG_TKA00_STR-RABWG sy-vline 
WA_FCOV_MIG_TKA00_STR-RMBST sy-vline 
WA_FCOV_MIG_TKA00_STR-MATST sy-vline 
WA_FCOV_MIG_TKA00_STR-RMKAL sy-vline 
WA_FCOV_MIG_TKA00_STR-ANLAA sy-vline 
WA_FCOV_MIG_TKA00_STR-RFKUN sy-vline 
WA_FCOV_MIG_TKA00_STR-RFDIS sy-vline 
WA_FCOV_MIG_TKA00_STR-GLSYS sy-vline 
WA_FCOV_MIG_TKA00_STR-RPPER sy-vline 
WA_FCOV_MIG_TKA00_STR-RVAUF sy-vline 
WA_FCOV_MIG_TKA00_STR-OBLVB sy-vline 
WA_FCOV_MIG_TKA00_STR-RVFAK sy-vline 
WA_FCOV_MIG_TKA00_STR-RFZAL sy-vline 
WA_FCOV_MIG_TKA00_STR-RFANZ sy-vline 
WA_FCOV_MIG_TKA00_STR-ALLEW sy-vline 
WA_FCOV_MIG_TKA00_STR-PCRCH sy-vline 
WA_FCOV_MIG_TKA00_STR-KAEIN sy-vline 
WA_FCOV_MIG_TKA00_STR-COABC sy-vline 
WA_FCOV_MIG_TKA00_STR-ACTPA sy-vline 
WA_FCOV_MIG_TKA00_STR-PCTRP sy-vline 
WA_FCOV_MIG_TKA00_STR-REACTIVE sy-vline 
WA_FCOV_MIG_TKA00_STR-ADD_HIER1 sy-vline 
WA_FCOV_MIG_TKA00_STR-ADD_HIER2 sy-vline 
WA_FCOV_MIG_TKA00_STR-KE_ADD_HIER1 sy-vline 
WA_FCOV_MIG_TKA00_STR-KE_ADD_HIER2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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