ABAP Select data from SAP table IACPERINVCUBE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACPERINVCUBE
*  INTO TABLE @DATA(IT_IACPERINVCUBE2).
*--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_IACPERINVCUBE INDEX 1 INTO DATA(WA_IACPERINVCUBE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACPERINVCUBE>-MANDT = 1.
<IACPERINVCUBE>-CHGMGMTACTYPERSNINVOLVEDUUID = 1.
<IACPERINVCUBE>-CHGMGMTREQUUID = 1.
<IACPERINVCUBE>-CHGMGMTACTYUUID = 1.
<IACPERINVCUBE>-CHGMGMTPERSNINVOLVEDROLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACPERINVCUBE-BUSINESSPARTNER, sy-vline,
  WA_IACPERINVCUBE-CHGMGMTACTYTYPE, sy-vline,
  WA_IACPERINVCUBE-CHGMGMTACTYSTATUS, sy-vline,
  WA_IACPERINVCUBE-CHGMGMTACTYDUEDATE, sy-vline,
  WA_IACPERINVCUBE-CHGMGMTACTYDUEMONTH, sy-vline,
  WA_IACPERINVCUBE-CHGMGMTACTYDUEYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACPERINVCUBE 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_IACPERINVCUBE 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_IACPERINVCUBE INTO WA_IACPERINVCUBE.


*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 BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IACPERINVCUBE-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACPERINVCUBE-BUSINESSPARTNER.
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_IACPERINVCUBE_STR, 
MANDT TYPE STRING,
CHGMGMTACTYPERSNINVOLVEDUUID TYPE STRING,
CHGMGMTREQUUID TYPE STRING,
CHGMGMTACTYUUID TYPE STRING,
CHGMGMTPERSNINVOLVEDROLE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CHGMGMTACTYTYPE TYPE STRING,
CHGMGMTACTYSTATUS TYPE STRING,
CHGMGMTACTYDUEDATE TYPE STRING,
CHGMGMTACTYDUEMONTH TYPE STRING,
CHGMGMTACTYDUEYEAR TYPE STRING,
CHGMGMTACTYAUTHORIZATIONGROUP TYPE STRING,
CHGMGMTREQCREATIONDATE TYPE STRING,
CHGMGMTREQCREATIONMONTH TYPE STRING,
CHGMGMTREQCREATIONYEAR TYPE STRING,
CHGMGMTREQREVERSALDATE TYPE STRING,
CHGMGMTREQREVERSALMONTH TYPE STRING,
CHGMGMTREQREVERSALYEAR TYPE STRING,
CHGMGMTREQAPPROVALDATE TYPE STRING,
CHGMGMTREQAPPROVALMONTH TYPE STRING,
CHGMGMTREQAPPROVALYEAR TYPE STRING,
CHGMGMTREQEXECSTARTDATE TYPE STRING,
CHGMGMTREQEXECSTARTMONTH TYPE STRING,
CHGMGMTREQEXECSTARTYEAR TYPE STRING,
CHGMGMTREQOPLSTARTDATE TYPE STRING,
CHGMGMTREQOPLSTARTMONTH TYPE STRING,
CHGMGMTREQOPLSTARTYEAR TYPE STRING,
NUMBEROFCHGMGMTACTIVITIES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACPERINVCUBE_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_IACPERINVCUBE_STR-MANDT sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYPERSNINVOLVEDUUID sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQUUID sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYUUID sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTPERSNINVOLVEDROLE sy-vline 
WA_IACPERINVCUBE_STR-BUSINESSPARTNER sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYTYPE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYSTATUS sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYDUEDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYDUEMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYDUEYEAR sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTACTYAUTHORIZATIONGROUP sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQCREATIONDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQCREATIONMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQCREATIONYEAR sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQREVERSALDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQREVERSALMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQREVERSALYEAR sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQAPPROVALDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQAPPROVALMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQAPPROVALYEAR sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQEXECSTARTDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQEXECSTARTMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQEXECSTARTYEAR sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQOPLSTARTDATE sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQOPLSTARTMONTH sy-vline 
WA_IACPERINVCUBE_STR-CHGMGMTREQOPLSTARTYEAR sy-vline 
WA_IACPERINVCUBE_STR-NUMBEROFCHGMGMTACTIVITIES sy-vline      INTO ld_text SEPARATED BY SPACE.

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