ABAP Select data from SAP table CCTRVERSHIST_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCTRVERSHIST_D
*  INTO TABLE @DATA(IT_CCTRVERSHIST_D2).
*--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_CCTRVERSHIST_D INDEX 1 INTO DATA(WA_CCTRVERSHIST_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCTRVERSHIST_D>-MANDT = 1.
<CCTRVERSHIST_D>-DRAFTUUID = 1.
<CCTRVERSHIST_D>-PURCHASINGDOCUMENTCATEGORY = 1.
<CCTRVERSHIST_D>-ACTIVEPURCHASINGDOCUMENT = 1.
<CCTRVERSHIST_D>-CENTRALPURCHASECONTRACTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCTRVERSHIST_D-PURCHASINGDOCUMENTVERSION, sy-vline,
  WA_CCTRVERSHIST_D-CREATEDBYUSER, sy-vline,
  WA_CCTRVERSHIST_D-CREATIONDATE, sy-vline,
  WA_CCTRVERSHIST_D-CREATIONTIME, sy-vline,
  WA_CCTRVERSHIST_D-PURCHASINGDOCVERSIONREASONCODE, sy-vline,
  WA_CCTRVERSHIST_D-PURCHASINGDOCVERSIONREASONTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCTRVERSHIST_D 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_CCTRVERSHIST_D 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_CCTRVERSHIST_D INTO WA_CCTRVERSHIST_D.


*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 ACTIVEPURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCTRVERSHIST_D-ACTIVEPURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCTRVERSHIST_D-ACTIVEPURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCUMENTVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCTRVERSHIST_D-PURCHASINGDOCUMENTVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCTRVERSHIST_D-PURCHASINGDOCUMENTVERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CENTRALPURCHASECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCTRVERSHIST_D-CENTRALPURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCTRVERSHIST_D-CENTRALPURCHASECONTRACT.
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_CCTRVERSHIST_D_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
ACTIVEPURCHASINGDOCUMENT TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PURCHASINGDOCUMENTVERSION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
PURCHASINGDOCVERSIONREASONCODE TYPE STRING,
PURCHASINGDOCVERSIONREASONTEXT TYPE STRING,
PURCHASINGDOCVERSIONSTATUS TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
PURGDOCCHANGEREQUESTSTATUS TYPE STRING,
CHANGEREQUESTNOTE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCTRVERSHIST_D_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_CCTRVERSHIST_D_STR-MANDT sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTUUID sy-vline 
WA_CCTRVERSHIST_D_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CCTRVERSHIST_D_STR-ACTIVEPURCHASINGDOCUMENT sy-vline 
WA_CCTRVERSHIST_D_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_CCTRVERSHIST_D_STR-PURCHASINGDOCUMENTVERSION sy-vline 
WA_CCTRVERSHIST_D_STR-CREATEDBYUSER sy-vline 
WA_CCTRVERSHIST_D_STR-CREATIONDATE sy-vline 
WA_CCTRVERSHIST_D_STR-CREATIONTIME sy-vline 
WA_CCTRVERSHIST_D_STR-PURCHASINGDOCVERSIONREASONCODE sy-vline 
WA_CCTRVERSHIST_D_STR-PURCHASINGDOCVERSIONREASONTEXT sy-vline 
WA_CCTRVERSHIST_D_STR-PURCHASINGDOCVERSIONSTATUS sy-vline 
WA_CCTRVERSHIST_D_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_CCTRVERSHIST_D_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_CCTRVERSHIST_D_STR-PURGDOCCHANGEREQUESTSTATUS sy-vline 
WA_CCTRVERSHIST_D_STR-CHANGEREQUESTNOTE sy-vline 
WA_CCTRVERSHIST_D_STR-HASACTIVEENTITY sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_CCTRVERSHIST_D_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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