ABAP Select data from SAP table COLLRLVLN_DRAFT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COLLRLVLN_DRAFT
*  INTO TABLE @DATA(IT_COLLRLVLN_DRAFT2).
*--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_COLLRLVLN_DRAFT INDEX 1 INTO DATA(WA_COLLRLVLN_DRAFT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COLLRLVLN_DRAFT>-MANDT = 1.
<COLLRLVLN_DRAFT>-DRAFTUUID = 1.
<COLLRLVLN_DRAFT>-PARENTDRAFTUUID = 1.
<COLLRLVLN_DRAFT>-ROOTDRAFTUUID = 1.
<COLLRLVLN_DRAFT>-COLLECTIONSTRATEGY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COLLRLVLN_DRAFT-COLLRULESQNCNMBRINSTRGY, sy-vline,
  WA_COLLRLVLN_DRAFT-COLLSELOPTNCNTRINSTRGY, sy-vline,
  WA_COLLRLVLN_DRAFT-COLLBASICRULESTRUC, sy-vline,
  WA_COLLRLVLN_DRAFT-COLLBASICRULEFIELDNAME, sy-vline,
  WA_COLLRLVLN_DRAFT-SETRANGESIGN, sy-vline,
  WA_COLLRLVLN_DRAFT-SETRANGEOPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COLLRLVLN_DRAFT 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_COLLRLVLN_DRAFT 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_COLLRLVLN_DRAFT INTO WA_COLLRLVLN_DRAFT.


*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 COLLECTIONSTRATEGY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COLLRLVLN_DRAFT-COLLECTIONSTRATEGY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COLLRLVLN_DRAFT-COLLECTIONSTRATEGY.
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_COLLRLVLN_DRAFT_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
PARENTDRAFTUUID TYPE STRING,
ROOTDRAFTUUID TYPE STRING,
COLLECTIONSTRATEGY TYPE STRING,
COLLRULESQNCNMBRINSTRGY TYPE STRING,
COLLSELOPTNCNTRINSTRGY TYPE STRING,
COLLBASICRULESTRUC TYPE STRING,
COLLBASICRULEFIELDNAME TYPE STRING,
SETRANGESIGN TYPE STRING,
SETRANGEOPTION TYPE STRING,
SETRANGEFROMVALUE TYPE STRING,
SETRANGETOVALUE TYPE STRING,
COLLSTRGYCURRENCY TYPE STRING,
MINTARGETAMOUNT TYPE STRING,
MAXTARGETAMOUNT 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_COLLRLVLN_DRAFT_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_COLLRLVLN_DRAFT_STR-MANDT sy-vline 
WA_COLLRLVLN_DRAFT_STR-DRAFTUUID sy-vline 
WA_COLLRLVLN_DRAFT_STR-PARENTDRAFTUUID sy-vline 
WA_COLLRLVLN_DRAFT_STR-ROOTDRAFTUUID sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLECTIONSTRATEGY sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLRULESQNCNMBRINSTRGY sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLSELOPTNCNTRINSTRGY sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLBASICRULESTRUC sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLBASICRULEFIELDNAME sy-vline 
WA_COLLRLVLN_DRAFT_STR-SETRANGESIGN sy-vline 
WA_COLLRLVLN_DRAFT_STR-SETRANGEOPTION sy-vline 
WA_COLLRLVLN_DRAFT_STR-SETRANGEFROMVALUE sy-vline 
WA_COLLRLVLN_DRAFT_STR-SETRANGETOVALUE sy-vline 
WA_COLLRLVLN_DRAFT_STR-COLLSTRGYCURRENCY sy-vline 
WA_COLLRLVLN_DRAFT_STR-MINTARGETAMOUNT sy-vline 
WA_COLLRLVLN_DRAFT_STR-MAXTARGETAMOUNT sy-vline 
WA_COLLRLVLN_DRAFT_STR-HASACTIVEENTITY sy-vline 
WA_COLLRLVLN_DRAFT_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_COLLRLVLN_DRAFT_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_COLLRLVLN_DRAFT_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_COLLRLVLN_DRAFT_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_COLLRLVLN_DRAFT_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.