ABAP Select data from SAP table CALLOCRUNSEGMENT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CALLOCRUNSEGMENT
*  INTO TABLE @DATA(IT_CALLOCRUNSEGMENT2).
*--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_CALLOCRUNSEGMENT INDEX 1 INTO DATA(WA_CALLOCRUNSEGMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CALLOCRUNSEGMENT>-MANDT = 1.
<CALLOCRUNSEGMENT>-UNIVERSALALLOCATIONRUN = 1.
<CALLOCRUNSEGMENT>-ALLOCATIONCYCLEPOSITION = 1.
<CALLOCRUNSEGMENT>-ALLOCATIONCYCLESEGMENTPOSITION = 1.
<CALLOCRUNSEGMENT>-ALLOCATIONCYCLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CALLOCRUNSEGMENT-ALLOCATIONCYCLENAME, sy-vline,
  WA_CALLOCRUNSEGMENT-ALLOCATIONCYCLENAMETEXT, sy-vline,
  WA_CALLOCRUNSEGMENT-ALLOCATIONCYCLESTARTDATE, sy-vline,
  WA_CALLOCRUNSEGMENT-ALLOCATIONCYCLESEGMENT, sy-vline,
  WA_CALLOCRUNSEGMENT-SEGMENTNAME, sy-vline,
  WA_CALLOCRUNSEGMENT-SEGMENTNAMEDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CALLOCRUNSEGMENT 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_CALLOCRUNSEGMENT 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_CALLOCRUNSEGMENT INTO WA_CALLOCRUNSEGMENT.


*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 LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CALLOCRUNSEGMENT-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CALLOCRUNSEGMENT-LEDGER.
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_CALLOCRUNSEGMENT_STR, 
MANDT TYPE STRING,
UNIVERSALALLOCATIONRUN TYPE STRING,
ALLOCATIONCYCLEPOSITION TYPE STRING,
ALLOCATIONCYCLESEGMENTPOSITION TYPE STRING,
ALLOCATIONCYCLE TYPE STRING,
ALLOCATIONCYCLENAME TYPE STRING,
ALLOCATIONCYCLENAMETEXT TYPE STRING,
ALLOCATIONCYCLESTARTDATE TYPE STRING,
ALLOCATIONCYCLESEGMENT TYPE STRING,
SEGMENTNAME TYPE STRING,
SEGMENTNAMEDESCRIPTION TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
LEDGER TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
ALLOCATIONRUNNUMBEROFSENDERS TYPE STRING,
ALLOCATIONRUNNUMBEROFRECEIVERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CALLOCRUNSEGMENT_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_CALLOCRUNSEGMENT_STR-MANDT sy-vline 
WA_CALLOCRUNSEGMENT_STR-UNIVERSALALLOCATIONRUN sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLEPOSITION sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLESEGMENTPOSITION sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLE sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLENAME sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLENAMETEXT sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLESTARTDATE sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONCYCLESEGMENT sy-vline 
WA_CALLOCRUNSEGMENT_STR-SEGMENTNAME sy-vline 
WA_CALLOCRUNSEGMENT_STR-SEGMENTNAMEDESCRIPTION sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONTYPE sy-vline 
WA_CALLOCRUNSEGMENT_STR-LEDGER sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONACTUALPLANVARIANT sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_CALLOCRUNSEGMENT_STR-COMPANYCODE sy-vline 
WA_CALLOCRUNSEGMENT_STR-COMPANYCODENAME sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONRUNNUMBEROFSENDERS sy-vline 
WA_CALLOCRUNSEGMENT_STR-ALLOCATIONRUNNUMBEROFRECEIVERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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