ABAP Select data from SAP table CALOCRUNCYCFLT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CALOCRUNCYCFLT
*  INTO TABLE @DATA(IT_CALOCRUNCYCFLT2).
*--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_CALOCRUNCYCFLT INDEX 1 INTO DATA(WA_CALOCRUNCYCFLT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CALOCRUNCYCFLT-ALLOCATIONCYCLENAMETEXT, sy-vline,
  WA_CALOCRUNCYCFLT-ALLOCATIONEXECUTIONLEDGER, sy-vline,
  WA_CALOCRUNCYCFLT-ALLOCATIONEXECUTIONLEDGERNAME, sy-vline,
  WA_CALOCRUNCYCFLT-ALLOCATIONPOSTINGTYPE, sy-vline,
  WA_CALOCRUNCYCFLT-ALLOCATIONACTUALPLANVARIANT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_CALOCRUNCYCFLT 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_CALOCRUNCYCFLT 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_CALOCRUNCYCFLT INTO WA_CALOCRUNCYCFLT.


*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_CALOCRUNCYCFLT-ALLOCATIONEXECUTIONLEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CALOCRUNCYCFLT-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_CALOCRUNCYCFLT_STR, 
MANDT TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
ALLOCATIONCYCLE TYPE STRING,
ALLOCATIONCYCLESTARTDATE TYPE STRING,
ALLOCATIONCYCLENAME TYPE STRING,
ALLOCATIONCYCLENAMETEXT TYPE STRING,
ALLOCATIONEXECUTIONLEDGER TYPE STRING,
ALLOCATIONEXECUTIONLEDGERNAME TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CALOCRUNCYCFLT_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_CALOCRUNCYCFLT_STR-MANDT sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONTYPE sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONCYCLE sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONCYCLESTARTDATE sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONCYCLENAME sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONCYCLENAMETEXT sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONEXECUTIONLEDGER sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONEXECUTIONLEDGERNAME sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_CALOCRUNCYCFLT_STR-ALLOCATIONACTUALPLANVARIANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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