ABAP Select data from SAP table IACMTCBUSDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACMTCBUSDATA
*  INTO TABLE @DATA(IT_IACMTCBUSDATA2).
*--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_IACMTCBUSDATA INDEX 1 INTO DATA(WA_IACMTCBUSDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACMTCBUSDATA>-MANDT = 1.
<IACMTCBUSDATA>-TRADINGCONTRACTNUMBER = 1.
<IACMTCBUSDATA>-TRADINGCONTRACTITEM = 1.
<IACMTCBUSDATA>-TRDGCONTRCOMMODITYSUBITEM = 1.
<IACMTCBUSDATA>-PURCHASEORDERSUPPLIER = 1.

ENDLOOP.

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

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


*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_IACMTCBUSDATA-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMTCBUSDATA-TRADINGCONTRACTNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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