ABAP Select data from SAP table ICOLLSCNTVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICOLLSCNTVH
*  INTO TABLE @DATA(IT_ICOLLSCNTVH2).
*--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_ICOLLSCNTVH INDEX 1 INTO DATA(WA_ICOLLSCNTVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICOLLSCNTVH>-MANDT = 1.
<ICOLLSCNTVH>-RELATIONSHIPNUMBER = 1.
<ICOLLSCNTVH>-BUSINESSPARTNERCOMPANY = 1.
<ICOLLSCNTVH>-BUSINESSPARTNERPERSON = 1.
<ICOLLSCNTVH>-COLLECTIONSEGMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICOLLSCNTVH-CONTACTPERSON, sy-vline,
  WA_ICOLLSCNTVH-CONTACTPERSONNAME, sy-vline,
  WA_ICOLLSCNTVH-PHONENUMBER, sy-vline,
  WA_ICOLLSCNTVH-MOBILENUMBER, sy-vline,
  WA_ICOLLSCNTVH-FAXNUMBER, sy-vline,
  WA_ICOLLSCNTVH-EMAILADDRESS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICOLLSCNTVH 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_ICOLLSCNTVH 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_ICOLLSCNTVH INTO WA_ICOLLSCNTVH.


*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_ICOLLSCNTVH-RELATIONSHIPNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOLLSCNTVH-RELATIONSHIPNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit SXIDN, internal->external for field EMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_ICOLLSCNTVH-EMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOLLSCNTVH-EMAILADDRESS.
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_ICOLLSCNTVH_STR, 
MANDT TYPE STRING,
RELATIONSHIPNUMBER TYPE STRING,
BUSINESSPARTNERCOMPANY TYPE STRING,
BUSINESSPARTNERPERSON TYPE STRING,
COLLECTIONSEGMENT TYPE STRING,
CONTACTPERSON TYPE STRING,
CONTACTPERSONNAME TYPE STRING,
PHONENUMBER TYPE STRING,
MOBILENUMBER TYPE STRING,
FAXNUMBER TYPE STRING,
EMAILADDRESS TYPE STRING,
CONTACTPERSONDEPARTMENTNAME TYPE STRING,
CONTACTPERSONFUNCTIONNAME TYPE STRING,
CONTACTPERSONFUNCTION TYPE STRING,
CONTACTPERSONDEPARTMENT TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICOLLSCNTVH_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_ICOLLSCNTVH_STR-MANDT sy-vline 
WA_ICOLLSCNTVH_STR-RELATIONSHIPNUMBER sy-vline 
WA_ICOLLSCNTVH_STR-BUSINESSPARTNERCOMPANY sy-vline 
WA_ICOLLSCNTVH_STR-BUSINESSPARTNERPERSON sy-vline 
WA_ICOLLSCNTVH_STR-COLLECTIONSEGMENT sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSON sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSONNAME sy-vline 
WA_ICOLLSCNTVH_STR-PHONENUMBER sy-vline 
WA_ICOLLSCNTVH_STR-MOBILENUMBER sy-vline 
WA_ICOLLSCNTVH_STR-FAXNUMBER sy-vline 
WA_ICOLLSCNTVH_STR-EMAILADDRESS sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSONDEPARTMENTNAME sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSONFUNCTIONNAME sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSONFUNCTION sy-vline 
WA_ICOLLSCNTVH_STR-CONTACTPERSONDEPARTMENT sy-vline 
WA_ICOLLSCNTVH_STR-FIRSTNAME sy-vline 
WA_ICOLLSCNTVH_STR-LASTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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