ABAP Select data from SAP table VFCLMMMPOHTC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFCLMMMPOHTC
*  INTO TABLE @DATA(IT_VFCLMMMPOHTC2).
*--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_VFCLMMMPOHTC INDEX 1 INTO DATA(WA_VFCLMMMPOHTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFCLMMMPOHTC>-MANDT = 1.
<VFCLMMMPOHTC>-PURCHASEORDER = 1.
<VFCLMMMPOHTC>-PURCHASEORDERITEM = 1.
<VFCLMMMPOHTC>-CONDITIONSTEP = 1.
<VFCLMMMPOHTC>-CONDITIONCOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFCLMMMPOHTC-PURCHASEORDERTRANSACTIONTYPE, sy-vline,
  WA_VFCLMMMPOHTC-FISCALYEAR, sy-vline,
  WA_VFCLMMMPOHTC-ACCOUNTINGDOCUMENT, sy-vline,
  WA_VFCLMMMPOHTC-ACCOUNTINGDOCUMENTITEM, sy-vline,
  WA_VFCLMMMPOHTC-PURCHASEORDERHISTCATEGORY, sy-vline,
  WA_VFCLMMMPOHTC-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFCLMMMPOHTC 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_VFCLMMMPOHTC 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_VFCLMMMPOHTC INTO WA_VFCLMMMPOHTC.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPOHTC-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPOHTC-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPOHTC-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPOHTC-SUPPLIER.
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_VFCLMMMPOHTC_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
CONDITIONSTEP TYPE STRING,
CONDITIONCOUNT TYPE STRING,
PURCHASEORDERTRANSACTIONTYPE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
PURCHASEORDERHISTCATEGORY TYPE STRING,
POSTINGDATE TYPE STRING,
PURCHASEORDERITEMQUANTITY TYPE STRING,
PURORDAMOUNTINCOMPANYCODECRCY TYPE STRING,
PURORDERITEMAMOUNTINPURORDCRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
GRIRACCTCLRGAMTINCOCODECRCY TYPE STRING,
QUANTITYDEBITCREDITCODE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
SUPPLIER TYPE STRING,
INVOICEAMTINCOCODECRCY TYPE STRING,
INVOICEAMOUNTINFRGNCURRENCY TYPE STRING,
PURCHASEORDERQTY TYPE STRING,
GRIRACCTCLRGAMTINTRANSACCRCY TYPE STRING,
AMOUNTDEBITCREDITCODE TYPE STRING,
GRIRACCTCLRGAMTINORDTRNSACCRCY TYPE STRING,
INVOICEAMTINPURGDOCTRANSACCRCY TYPE STRING,
CONDITIONTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFCLMMMPOHTC_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_VFCLMMMPOHTC_STR-MANDT sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDER sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDERITEM sy-vline 
WA_VFCLMMMPOHTC_STR-CONDITIONSTEP sy-vline 
WA_VFCLMMMPOHTC_STR-CONDITIONCOUNT sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDERTRANSACTIONTYPE sy-vline 
WA_VFCLMMMPOHTC_STR-FISCALYEAR sy-vline 
WA_VFCLMMMPOHTC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_VFCLMMMPOHTC_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDERHISTCATEGORY sy-vline 
WA_VFCLMMMPOHTC_STR-POSTINGDATE sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDERITEMQUANTITY sy-vline 
WA_VFCLMMMPOHTC_STR-PURORDAMOUNTINCOMPANYCODECRCY sy-vline 
WA_VFCLMMMPOHTC_STR-PURORDERITEMAMOUNTINPURORDCRCY sy-vline 
WA_VFCLMMMPOHTC_STR-COMPANYCODECURRENCY sy-vline 
WA_VFCLMMMPOHTC_STR-GRIRACCTCLRGAMTINCOCODECRCY sy-vline 
WA_VFCLMMMPOHTC_STR-QUANTITYDEBITCREDITCODE sy-vline 
WA_VFCLMMMPOHTC_STR-DOCUMENTREFERENCEID sy-vline 
WA_VFCLMMMPOHTC_STR-SUPPLIER sy-vline 
WA_VFCLMMMPOHTC_STR-INVOICEAMTINCOCODECRCY sy-vline 
WA_VFCLMMMPOHTC_STR-INVOICEAMOUNTINFRGNCURRENCY sy-vline 
WA_VFCLMMMPOHTC_STR-PURCHASEORDERQTY sy-vline 
WA_VFCLMMMPOHTC_STR-GRIRACCTCLRGAMTINTRANSACCRCY sy-vline 
WA_VFCLMMMPOHTC_STR-AMOUNTDEBITCREDITCODE sy-vline 
WA_VFCLMMMPOHTC_STR-GRIRACCTCLRGAMTINORDTRNSACCRCY sy-vline 
WA_VFCLMMMPOHTC_STR-INVOICEAMTINPURGDOCTRANSACCRCY sy-vline 
WA_VFCLMMMPOHTC_STR-CONDITIONTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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