ABAP Select data from SAP table CALOCRUNCYC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CALOCRUNCYC
*  INTO TABLE @DATA(IT_CALOCRUNCYC2).
*--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_CALOCRUNCYC INDEX 1 INTO DATA(WA_CALOCRUNCYC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CALOCRUNCYC>-MANDT = 1.
<CALOCRUNCYC>-ALLOCATIONTYPE = 1.
<CALOCRUNCYC>-ALLOCATIONCYCLE = 1.
<CALOCRUNCYC>-ALLOCATIONCYCLESTARTDATE = 1.
<CALOCRUNCYC>-ALLOCATIONEXECUTIONLEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CALOCRUNCYC-ALLOCATIONCYCLENAME, sy-vline,
  WA_CALOCRUNCYC-ALLOCATIONCYCLENAMETEXT, sy-vline,
  WA_CALOCRUNCYC-ALLOCATIONCONTEXTTYPETEXT, sy-vline,
  WA_CALOCRUNCYC-ALLOCATIONPOSTINGTYPE, sy-vline,
  WA_CALOCRUNCYC-ALLOCATIONPOSTINGTYPETEXT, sy-vline,
  WA_CALOCRUNCYC-ALLOCATIONACTUALPLANVARIANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CALOCRUNCYC 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_CALOCRUNCYC 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_CALOCRUNCYC INTO WA_CALOCRUNCYC.


*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 ALLOCATIONEXECUTIONLEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CALOCRUNCYC-ALLOCATIONEXECUTIONLEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CALOCRUNCYC-ALLOCATIONEXECUTIONLEDGER.
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_CALOCRUNCYC_STR, 
MANDT TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
ALLOCATIONCYCLE TYPE STRING,
ALLOCATIONCYCLESTARTDATE TYPE STRING,
ALLOCATIONEXECUTIONLEDGER TYPE STRING,
ALLOCATIONCYCLENAME TYPE STRING,
ALLOCATIONCYCLENAMETEXT TYPE STRING,
ALLOCATIONCONTEXTTYPETEXT TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
ALLOCATIONPOSTINGTYPETEXT TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,
ALLOCACTUALPLANVARIANTTEXT TYPE STRING,
ALLOCATIONEXECUTIONLEDGERNAME TYPE STRING,
COMPANYCODE TYPE STRING,
FROMFISCALYEAR TYPE STRING,
TOFISCALYEAR TYPE STRING,
FROMFISCALPERIOD TYPE STRING,
TOFISCALPERIOD TYPE STRING,
ALLOCCYCLEFISCALPERIOD1STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD1STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD1RUN TYPE STRING,
ALLOCCYCLEFISCALPERIOD2STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD2STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD2RUN TYPE STRING,
ALLOCCYCLEFISCALPERIOD3STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD3STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD3RUN TYPE STRING,
ALLOCCYCLEFISCALPERIOD4STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD4STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD4RUN TYPE STRING,
ALLOCCYCLEFISCALPERIOD5STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD5STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD5RUN TYPE STRING,
ALLOCCYCLEFISCALPERIOD6STATUS TYPE STRING,
ALLOCCYCFISCALPERIOD6STATUSTXT TYPE STRING,
ALLOCCYCLEFISCALPERIOD6RUN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CALOCRUNCYC_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_CALOCRUNCYC_STR-MANDT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONTYPE sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONCYCLE sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONCYCLESTARTDATE sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONEXECUTIONLEDGER sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONCYCLENAME sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONCYCLENAMETEXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONCONTEXTTYPETEXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONPOSTINGTYPETEXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONACTUALPLANVARIANT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCACTUALPLANVARIANTTEXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCATIONEXECUTIONLEDGERNAME sy-vline 
WA_CALOCRUNCYC_STR-COMPANYCODE sy-vline 
WA_CALOCRUNCYC_STR-FROMFISCALYEAR sy-vline 
WA_CALOCRUNCYC_STR-TOFISCALYEAR sy-vline 
WA_CALOCRUNCYC_STR-FROMFISCALPERIOD sy-vline 
WA_CALOCRUNCYC_STR-TOFISCALPERIOD sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD1STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD1STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD1RUN sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD2STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD2STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD2RUN sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD3STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD3STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD3RUN sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD4STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD4STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD4RUN sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD5STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD5STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD5RUN sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD6STATUS sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCFISCALPERIOD6STATUSTXT sy-vline 
WA_CALOCRUNCYC_STR-ALLOCCYCLEFISCALPERIOD6RUN sy-vline      INTO ld_text SEPARATED BY SPACE.

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