ABAP Select data from SAP table IACMTCBUSMNTNAPP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACMTCBUSMNTNAPP
*  INTO TABLE @DATA(IT_IACMTCBUSMNTNAPP2).
*--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_IACMTCBUSMNTNAPP INDEX 1 INTO DATA(WA_IACMTCBUSMNTNAPP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACMTCBUSMNTNAPP>-MANDT = 1.
<IACMTCBUSMNTNAPP>-TRADINGCONTRACTNUMBER = 1.
<IACMTCBUSMNTNAPP>-PURCHASEORDERSUPPLIER = 1.
<IACMTCBUSMNTNAPP>-PAYMENTTERMS = 1.
<IACMTCBUSMNTNAPP>-PURCHASINGORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACMTCBUSMNTNAPP-PURCHASINGGROUP, sy-vline,
  WA_IACMTCBUSMNTNAPP-TRADINGCONTRACTCURRENCY, sy-vline,
  WA_IACMTCBUSMNTNAPP-TRDGCONTRSALESINCOTERMSVERSION, sy-vline,
  WA_IACMTCBUSMNTNAPP-TRDGCONTRSLSINCOTERMSLOC1TEXT, sy-vline,
  WA_IACMTCBUSMNTNAPP-TRDGCONTRSLSINCOTERMSLOC2TEXT, sy-vline,
  WA_IACMTCBUSMNTNAPP-TRDGCONTRPURGINCOTERMSVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACMTCBUSMNTNAPP 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_IACMTCBUSMNTNAPP 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_IACMTCBUSMNTNAPP INTO WA_IACMTCBUSMNTNAPP.


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

*Conversion exit ALPHA, internal->external for field PURCHASEORDERSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IACMTCBUSMNTNAPP-PURCHASEORDERSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMTCBUSMNTNAPP-PURCHASEORDERSUPPLIER.
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_IACMTCBUSMNTNAPP_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
PURCHASEORDERSUPPLIER TYPE STRING,
PAYMENTTERMS TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
TRADINGCONTRACTCURRENCY TYPE STRING,
TRDGCONTRSALESINCOTERMSVERSION TYPE STRING,
TRDGCONTRSLSINCOTERMSLOC1TEXT TYPE STRING,
TRDGCONTRSLSINCOTERMSLOC2TEXT TYPE STRING,
TRDGCONTRPURGINCOTERMSVERSION TYPE STRING,
TRDGCONTRPURGINCOTERMSLOC1TEXT TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
ACMYOURREFERENCE TYPE STRING,
ACMCUSTOMERREFERENCE TYPE STRING,
TRDGCONTRSALESPAYMENTTERMS TYPE STRING,
ACMPURGINCOTERMSPART1 TYPE STRING,
ACMSLSINCOTERMSPART1 TYPE STRING,
DOCUMENTSIDE TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
ALTERNATEPAYMENTTERM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACMTCBUSMNTNAPP_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_IACMTCBUSMNTNAPP_STR-MANDT sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_IACMTCBUSMNTNAPP_STR-PURCHASEORDERSUPPLIER sy-vline 
WA_IACMTCBUSMNTNAPP_STR-PAYMENTTERMS sy-vline 
WA_IACMTCBUSMNTNAPP_STR-PURCHASINGORGANIZATION sy-vline 
WA_IACMTCBUSMNTNAPP_STR-PURCHASINGGROUP sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRADINGCONTRACTCURRENCY sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRSALESINCOTERMSVERSION sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRSLSINCOTERMSLOC1TEXT sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRSLSINCOTERMSLOC2TEXT sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRPURGINCOTERMSVERSION sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRPURGINCOTERMSLOC1TEXT sy-vline 
WA_IACMTCBUSMNTNAPP_STR-PRICINGDOCUMENT sy-vline 
WA_IACMTCBUSMNTNAPP_STR-ACMYOURREFERENCE sy-vline 
WA_IACMTCBUSMNTNAPP_STR-ACMCUSTOMERREFERENCE sy-vline 
WA_IACMTCBUSMNTNAPP_STR-TRDGCONTRSALESPAYMENTTERMS sy-vline 
WA_IACMTCBUSMNTNAPP_STR-ACMPURGINCOTERMSPART1 sy-vline 
WA_IACMTCBUSMNTNAPP_STR-ACMSLSINCOTERMSPART1 sy-vline 
WA_IACMTCBUSMNTNAPP_STR-DOCUMENTSIDE sy-vline 
WA_IACMTCBUSMNTNAPP_STR-INCOTERMSLOCATION1 sy-vline 
WA_IACMTCBUSMNTNAPP_STR-ALTERNATEPAYMENTTERM sy-vline      INTO ld_text SEPARATED BY SPACE.

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