ABAP Select data from SAP table ICLE_MASSINV_PART_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLE_MASSINV_PART_DI
*  INTO TABLE @DATA(IT_ICLE_MASSINV_PART_DI2).
*--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_ICLE_MASSINV_PART_DI INDEX 1 INTO DATA(WA_ICLE_MASSINV_PART_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLE_MASSINV_PART_DI>-DI_NUMBER = 1.
<ICLE_MASSINV_PART_DI>-PARTICIPANT = 1.
<ICLE_MASSINV_PART_DI>-CHIND_PARTOCC = 1.
<ICLE_MASSINV_PART_DI>-SUBOBJCAT = 1.
<ICLE_MASSINV_PART_DI>-SUBOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLE_MASSINV_PART_DI-ROLE, sy-vline,
  WA_ICLE_MASSINV_PART_DI-PARTICIPANT_OLD, sy-vline,
  WA_ICLE_MASSINV_PART_DI-CHIND_PART, sy-vline,
  WA_ICLE_MASSINV_PART_DI-REFERENCE, sy-vline,
  WA_ICLE_MASSINV_PART_DI-RELTYPE, sy-vline,
  WA_ICLE_MASSINV_PART_DI-PART_TEXT01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLE_MASSINV_PART_DI 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_ICLE_MASSINV_PART_DI 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_ICLE_MASSINV_PART_DI INTO WA_ICLE_MASSINV_PART_DI.


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

*Conversion exit ALPHA, internal->external for field PARTICIPANT_OLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICLE_MASSINV_PART_DI-PARTICIPANT_OLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLE_MASSINV_PART_DI-PARTICIPANT_OLD.
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_ICLE_MASSINV_PART_DI_STR, 
DI_NUMBER TYPE STRING,
PARTICIPANT TYPE STRING,
CHIND_PARTOCC TYPE STRING,
SUBOBJCAT TYPE STRING,
SUBOBJECT TYPE STRING,
ROLE TYPE STRING,
PARTICIPANT_OLD TYPE STRING,
CHIND_PART TYPE STRING,
REFERENCE TYPE STRING,
RELTYPE TYPE STRING,
PART_TEXT01 TYPE STRING,
FILE_REQUESTED TYPE STRING,
PARTTYPE TYPE STRING,
SEAT TYPE STRING,
XSALESTAX TYPE STRING,
GUILTRATE TYPE STRING,
XINTRACOMPANY TYPE STRING,
XNOINS TYPE STRING,
WIREPTYPE TYPE STRING,
XCONFIRM TYPE STRING,
JUDGEMENT TYPE STRING,
XKNOWN2DRIVER TYPE STRING,
DRV_AGE TYPE STRING,
ISSUEDATE_DRVL TYPE STRING,
BIRTHDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLE_MASSINV_PART_DI_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_ICLE_MASSINV_PART_DI_STR-DI_NUMBER sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-PARTICIPANT sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-CHIND_PARTOCC sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-SUBOBJCAT sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-SUBOBJECT sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-ROLE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-PARTICIPANT_OLD sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-CHIND_PART sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-REFERENCE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-RELTYPE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-PART_TEXT01 sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-FILE_REQUESTED sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-PARTTYPE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-SEAT sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-XSALESTAX sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-GUILTRATE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-XINTRACOMPANY sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-XNOINS sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-WIREPTYPE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-XCONFIRM sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-JUDGEMENT sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-XKNOWN2DRIVER sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-DRV_AGE sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-ISSUEDATE_DRVL sy-vline 
WA_ICLE_MASSINV_PART_DI_STR-BIRTHDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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