ABAP Select data from SAP table CALLOCCYCLEINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CALLOCCYCLEINFO
*  INTO TABLE @DATA(IT_CALLOCCYCLEINFO2).
*--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_CALLOCCYCLEINFO INDEX 1 INTO DATA(WA_CALLOCCYCLEINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CALLOCCYCLEINFO>-MANDT = 1.
<CALLOCCYCLEINFO>-ALLOCATIONTYPE = 1.
<CALLOCCYCLEINFO>-ALLOCATIONPOSTINGTYPE = 1.
<CALLOCCYCLEINFO>-ALLOCATIONACTUALPLANVARIANT = 1.
<CALLOCCYCLEINFO>-ALLOCATIONFIELDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CALLOCCYCLEINFO-ALLOCATIONFIELDTYPE, sy-vline,
  WA_CALLOCCYCLEINFO-SUPERIORTOFIELD1, sy-vline,
  WA_CALLOCCYCLEINFO-SUPERIORTOFIELD2, sy-vline,
  WA_CALLOCCYCLEINFO-ALLOCATIONFIELDACTIVE, sy-vline,
  WA_CALLOCCYCLEINFO-ALLOCATIONFIELDGROUP, sy-vline,
  WA_CALLOCCYCLEINFO-ALLOCATIONSINGLEFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CALLOCCYCLEINFO 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_CALLOCCYCLEINFO 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_CALLOCCYCLEINFO INTO WA_CALLOCCYCLEINFO.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CALLOCCYCLEINFO_STR, 
MANDT TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,
ALLOCATIONFIELDNAME TYPE STRING,
ALLOCATIONFIELDTYPE TYPE STRING,
SUPERIORTOFIELD1 TYPE STRING,
SUPERIORTOFIELD2 TYPE STRING,
ALLOCATIONFIELDACTIVE TYPE STRING,
ALLOCATIONFIELDGROUP TYPE STRING,
ALLOCATIONSINGLEFIELD TYPE STRING,
ALLOCATIONFIELDINTERVAL TYPE STRING,
ALLOCATIONFIELDLABEL TYPE STRING,
ALLOCATIONFIELDLENGTH TYPE STRING,
ALLOCATIONFIELDPROPERTYTYPE TYPE STRING,
ALLOCATIONFIELDISUPPERCASE TYPE STRING,
ALLOCATIONFIELDDECIMALPLACES TYPE STRING,
ALLOCATIONFIELDPRECISION TYPE STRING,
ALLOCATIONFIELDSCALE TYPE STRING,
ALLOCATIONFIELDDISPLAYPOSITION TYPE STRING,
ALLOCATIONFIELDISSTATIC TYPE STRING,
ALLOCATIONSEARCHHELPENTITYNAME TYPE STRING,
ALLOCATIONSEARCHHELPOUTPUT TYPE STRING,
GROUPVALUEHELPENTITYNAME TYPE STRING,
GROUPVALUEHELPOUTPUT TYPE STRING,
GROUPVALUEHELPOUTPUTTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CALLOCCYCLEINFO_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_CALLOCCYCLEINFO_STR-MANDT sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONTYPE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONACTUALPLANVARIANT sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDNAME sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDTYPE sy-vline 
WA_CALLOCCYCLEINFO_STR-SUPERIORTOFIELD1 sy-vline 
WA_CALLOCCYCLEINFO_STR-SUPERIORTOFIELD2 sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDACTIVE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDGROUP sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONSINGLEFIELD sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDINTERVAL sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDLABEL sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDLENGTH sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDPROPERTYTYPE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDISUPPERCASE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDDECIMALPLACES sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDPRECISION sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDSCALE sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDDISPLAYPOSITION sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONFIELDISSTATIC sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONSEARCHHELPENTITYNAME sy-vline 
WA_CALLOCCYCLEINFO_STR-ALLOCATIONSEARCHHELPOUTPUT sy-vline 
WA_CALLOCCYCLEINFO_STR-GROUPVALUEHELPENTITYNAME sy-vline 
WA_CALLOCCYCLEINFO_STR-GROUPVALUEHELPOUTPUT sy-vline 
WA_CALLOCCYCLEINFO_STR-GROUPVALUEHELPOUTPUTTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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