ABAP Select data from SAP table REYCPOOLOBJECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REYCPOOLOBJECT
*  INTO TABLE @DATA(IT_REYCPOOLOBJECT2).
*--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_REYCPOOLOBJECT INDEX 1 INTO DATA(WA_REYCPOOLOBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REYCPOOLOBJECT>-GUID = 1.
<REYCPOOLOBJECT>-OBJNR = 1.
<REYCPOOLOBJECT>-OBJINFO = 1.
<REYCPOOLOBJECT>-OBJTYPE = 1.
<REYCPOOLOBJECT>-XOBJTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REYCPOOLOBJECT-XLOBJTYPE, sy-vline,
  WA_REYCPOOLOBJECT-OBJID, sy-vline,
  WA_REYCPOOLOBJECT-IDENT, sy-vline,
  WA_REYCPOOLOBJECT-PFROM, sy-vline,
  WA_REYCPOOLOBJECT-PTO, sy-vline,
  WA_REYCPOOLOBJECT-OCCCNOBJNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REYCPOOLOBJECT 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_REYCPOOLOBJECT 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_REYCPOOLOBJECT INTO WA_REYCPOOLOBJECT.


*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 REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REYCPOOLOBJECT-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REYCPOOLOBJECT-PTO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MEAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REYCPOOLOBJECT-MEAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REYCPOOLOBJECT-MEAS.
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_REYCPOOLOBJECT_STR, 
GUID TYPE STRING,
OBJNR TYPE STRING,
OBJINFO TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
OBJID TYPE STRING,
IDENT TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
OCCCNOBJNR TYPE STRING,
CNOBJECT TYPE STRING,
MANDT TYPE STRING,
CAM_POOL_GUID TYPE STRING,
SETTL_GUID TYPE STRING,
CNOBJNR TYPE STRING,
POOLOBJNR TYPE STRING,
PGOBJNR TYPE STRING,
EXPPOOL TYPE STRING,
XEXPPOOL TYPE STRING,
PGID TYPE STRING,
PROVISION TYPE STRING,
CAP TYPE STRING,
MARKUP TYPE STRING,
MAJORTENANT TYPE STRING,
MTDCHECK TYPE STRING,
ISSUECREDIT TYPE STRING,
PURPOSE TYPE STRING,
MEAS TYPE STRING,
XMMEAS TYPE STRING,
XSMEAS TYPE STRING,
XPURPOSE TYPE STRING,
PARENTGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REYCPOOLOBJECT_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_REYCPOOLOBJECT_STR-GUID sy-vline 
WA_REYCPOOLOBJECT_STR-OBJNR sy-vline 
WA_REYCPOOLOBJECT_STR-OBJINFO sy-vline 
WA_REYCPOOLOBJECT_STR-OBJTYPE sy-vline 
WA_REYCPOOLOBJECT_STR-XOBJTYPE sy-vline 
WA_REYCPOOLOBJECT_STR-XLOBJTYPE sy-vline 
WA_REYCPOOLOBJECT_STR-OBJID sy-vline 
WA_REYCPOOLOBJECT_STR-IDENT sy-vline 
WA_REYCPOOLOBJECT_STR-PFROM sy-vline 
WA_REYCPOOLOBJECT_STR-PTO sy-vline 
WA_REYCPOOLOBJECT_STR-OCCCNOBJNR sy-vline 
WA_REYCPOOLOBJECT_STR-CNOBJECT sy-vline 
WA_REYCPOOLOBJECT_STR-MANDT sy-vline 
WA_REYCPOOLOBJECT_STR-CAM_POOL_GUID sy-vline 
WA_REYCPOOLOBJECT_STR-SETTL_GUID sy-vline 
WA_REYCPOOLOBJECT_STR-CNOBJNR sy-vline 
WA_REYCPOOLOBJECT_STR-POOLOBJNR sy-vline 
WA_REYCPOOLOBJECT_STR-PGOBJNR sy-vline 
WA_REYCPOOLOBJECT_STR-EXPPOOL sy-vline 
WA_REYCPOOLOBJECT_STR-XEXPPOOL sy-vline 
WA_REYCPOOLOBJECT_STR-PGID sy-vline 
WA_REYCPOOLOBJECT_STR-PROVISION sy-vline 
WA_REYCPOOLOBJECT_STR-CAP sy-vline 
WA_REYCPOOLOBJECT_STR-MARKUP sy-vline 
WA_REYCPOOLOBJECT_STR-MAJORTENANT sy-vline 
WA_REYCPOOLOBJECT_STR-MTDCHECK sy-vline 
WA_REYCPOOLOBJECT_STR-ISSUECREDIT sy-vline 
WA_REYCPOOLOBJECT_STR-PURPOSE sy-vline 
WA_REYCPOOLOBJECT_STR-MEAS sy-vline 
WA_REYCPOOLOBJECT_STR-XMMEAS sy-vline 
WA_REYCPOOLOBJECT_STR-XSMEAS sy-vline 
WA_REYCPOOLOBJECT_STR-XPURPOSE sy-vline 
WA_REYCPOOLOBJECT_STR-PARENTGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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