ABAP Select data from SAP table CBUPAREL2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CBUPAREL2 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 CBUPAREL2. 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 CBUPAREL2 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_CBUPAREL2 TYPE STANDARD TABLE OF CBUPAREL2,
      WA_CBUPAREL2 TYPE CBUPAREL2,
      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: <CBUPAREL2> TYPE CBUPAREL2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CBUPAREL2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CBUPAREL2
  INTO TABLE IT_CBUPAREL2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBUPAREL2
*  INTO TABLE @DATA(IT_CBUPAREL22).
*--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_CBUPAREL2 INDEX 1 INTO DATA(WA_CBUPAREL22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CBUPAREL2 ASSIGNING <CBUPAREL2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBUPAREL2>-MANDT = 1.
<CBUPAREL2>-RELATIONSHIPNUMBER = 1.
<CBUPAREL2>-BUSINESSPARTNER1 = 1.
<CBUPAREL2>-BUSINESSPARTNER2 = 1.
<CBUPAREL2>-VALIDITYENDDATE = 1.

ENDLOOP.

LOOP AT IT_CBUPAREL2 INTO WA_CBUPAREL2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBUPAREL2-RELATIONSHIPCATEGORY, sy-vline,
  WA_CBUPAREL2-VALIDITYSTARTDATE, sy-vline,
  WA_CBUPAREL2-RELATIONSHIPNUMBERFOREDIT, sy-vline,
  WA_CBUPAREL2-BUSINESSPARTNER1FOREDIT, sy-vline,
  WA_CBUPAREL2-BUSINESSPARTNER2FOREDIT, sy-vline,
  WA_CBUPAREL2-VALIDITYENDDATEFOREDIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBUPAREL2 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_CBUPAREL2 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_CBUPAREL2 INTO WA_CBUPAREL2.


*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 RELATIONSHIPNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-RELATIONSHIPNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-RELATIONSHIPNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-BUSINESSPARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-BUSINESSPARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-BUSINESSPARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-BUSINESSPARTNER2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RELATIONSHIPNUMBERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-RELATIONSHIPNUMBERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-RELATIONSHIPNUMBERFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER1FOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-BUSINESSPARTNER1FOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-BUSINESSPARTNER1FOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER2FOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBUPAREL2-BUSINESSPARTNER2FOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUPAREL2-BUSINESSPARTNER2FOREDIT.
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_CBUPAREL2_STR, 
MANDT TYPE STRING,
RELATIONSHIPNUMBER TYPE STRING,
BUSINESSPARTNER1 TYPE STRING,
BUSINESSPARTNER2 TYPE STRING,
VALIDITYENDDATE TYPE STRING,
RELATIONSHIPCATEGORY TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
RELATIONSHIPNUMBERFOREDIT TYPE STRING,
BUSINESSPARTNER1FOREDIT TYPE STRING,
BUSINESSPARTNER2FOREDIT TYPE STRING,
VALIDITYENDDATEFOREDIT TYPE STRING,
ISSTANDARDRELATIONSHIP TYPE STRING,
BPRELATIONSHIPTYPE TYPE STRING,
BUSPARTRELSHPISROLEDEFINITION TYPE STRING,
BPRELSHPCATISINFWDDIRECTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
BPRELSHPCOINTRSTDATAISHIDDEN TYPE STRING,
BPRELSHPCNTCTPERSNDATAISHIDDEN TYPE STRING,
BUSPARTRELSHPCATDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBUPAREL2_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_CBUPAREL2_STR-MANDT sy-vline 
WA_CBUPAREL2_STR-RELATIONSHIPNUMBER sy-vline 
WA_CBUPAREL2_STR-BUSINESSPARTNER1 sy-vline 
WA_CBUPAREL2_STR-BUSINESSPARTNER2 sy-vline 
WA_CBUPAREL2_STR-VALIDITYENDDATE sy-vline 
WA_CBUPAREL2_STR-RELATIONSHIPCATEGORY sy-vline 
WA_CBUPAREL2_STR-VALIDITYSTARTDATE sy-vline 
WA_CBUPAREL2_STR-RELATIONSHIPNUMBERFOREDIT sy-vline 
WA_CBUPAREL2_STR-BUSINESSPARTNER1FOREDIT sy-vline 
WA_CBUPAREL2_STR-BUSINESSPARTNER2FOREDIT sy-vline 
WA_CBUPAREL2_STR-VALIDITYENDDATEFOREDIT sy-vline 
WA_CBUPAREL2_STR-ISSTANDARDRELATIONSHIP sy-vline 
WA_CBUPAREL2_STR-BPRELATIONSHIPTYPE sy-vline 
WA_CBUPAREL2_STR-BUSPARTRELSHPISROLEDEFINITION sy-vline 
WA_CBUPAREL2_STR-BPRELSHPCATISINFWDDIRECTION sy-vline 
WA_CBUPAREL2_STR-CREATEDBYUSER sy-vline 
WA_CBUPAREL2_STR-CREATIONDATE sy-vline 
WA_CBUPAREL2_STR-CREATIONTIME sy-vline 
WA_CBUPAREL2_STR-LASTCHANGEDBYUSER sy-vline 
WA_CBUPAREL2_STR-LASTCHANGEDATE sy-vline 
WA_CBUPAREL2_STR-LASTCHANGETIME sy-vline 
WA_CBUPAREL2_STR-BPRELSHPCOINTRSTDATAISHIDDEN sy-vline 
WA_CBUPAREL2_STR-BPRELSHPCNTCTPERSNDATAISHIDDEN sy-vline 
WA_CBUPAREL2_STR-BUSPARTRELSHPCATDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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