ABAP Select data from SAP table IEBDOCCNVRSNMR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEBDOCCNVRSNMR
*  INTO TABLE @DATA(IT_IEBDOCCNVRSNMR2).
*--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_IEBDOCCNVRSNMR INDEX 1 INTO DATA(WA_IEBDOCCNVRSNMR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEBDOCCNVRSNMR>-MANDT = 1.
<IEBDOCCNVRSNMR>-UTILITIESBILLINGDOCUMENT = 1.
<IEBDOCCNVRSNMR>-UTILITIESBILLINGDOCLINEITEM = 1.
<IEBDOCCNVRSNMR>-METERREADINGDOCUMENT = 1.
<IEBDOCCNVRSNMR>-UTILSSQNCNMBRLINEITMCNVRSN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEBDOCCNVRSNMR-UTILSBILLGDOCLINEITEMSTARTDATE, sy-vline,
  WA_IEBDOCCNVRSNMR-UTILSBILLGDOCLINEITEMENDDATE, sy-vline,
  WA_IEBDOCCNVRSNMR-UTILSBILLGDOCLINEITMCNVRSNRSN, sy-vline,
  WA_IEBDOCCNVRSNMR-UTILSBILLGDOCLINEITMCNVRSNFCTR, sy-vline,
  WA_IEBDOCCNVRSNMR-UTILSCONVERTEDQTYPREDECIMALS, sy-vline,
  WA_IEBDOCCNVRSNMR-UTILSCONVERTEDQTYDECIMALS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEBDOCCNVRSNMR 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_IEBDOCCNVRSNMR 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_IEBDOCCNVRSNMR INTO WA_IEBDOCCNVRSNMR.


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

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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IEBDOCCNVRSNMR-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEBDOCCNVRSNMR-UNITOFMEASURE.
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_IEBDOCCNVRSNMR_STR, 
MANDT TYPE STRING,
UTILITIESBILLINGDOCUMENT TYPE STRING,
UTILITIESBILLINGDOCLINEITEM TYPE STRING,
METERREADINGDOCUMENT TYPE STRING,
UTILSSQNCNMBRLINEITMCNVRSN TYPE STRING,
UTILSBILLGDOCLINEITEMSTARTDATE TYPE STRING,
UTILSBILLGDOCLINEITEMENDDATE TYPE STRING,
UTILSBILLGDOCLINEITMCNVRSNRSN TYPE STRING,
UTILSBILLGDOCLINEITMCNVRSNFCTR TYPE STRING,
UTILSCONVERTEDQTYPREDECIMALS TYPE STRING,
UTILSCONVERTEDQTYDECIMALS TYPE STRING,
UTILSBILLGDOCLINEITMCNVRTDQTY TYPE STRING,
UNITOFMEASURE TYPE STRING,
NMBROFLINEITEMCNVRSNFCTR TYPE STRING,
UTILSLINEITMISMTRRDNGINFORLVT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEBDOCCNVRSNMR_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_IEBDOCCNVRSNMR_STR-MANDT sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILITIESBILLINGDOCUMENT sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILITIESBILLINGDOCLINEITEM sy-vline 
WA_IEBDOCCNVRSNMR_STR-METERREADINGDOCUMENT sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSSQNCNMBRLINEITMCNVRSN sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSBILLGDOCLINEITEMSTARTDATE sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSBILLGDOCLINEITEMENDDATE sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSBILLGDOCLINEITMCNVRSNRSN sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSBILLGDOCLINEITMCNVRSNFCTR sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSCONVERTEDQTYPREDECIMALS sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSCONVERTEDQTYDECIMALS sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSBILLGDOCLINEITMCNVRTDQTY sy-vline 
WA_IEBDOCCNVRSNMR_STR-UNITOFMEASURE sy-vline 
WA_IEBDOCCNVRSNMR_STR-NMBROFLINEITEMCNVRSNFCTR sy-vline 
WA_IEBDOCCNVRSNMR_STR-UTILSLINEITMISMTRRDNGINFORLVT sy-vline      INTO ld_text SEPARATED BY SPACE.

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