ABAP Select data from SAP table PACMTCHDRDTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PACMTCHDRDTS
*  INTO TABLE @DATA(IT_PACMTCHDRDTS2).
*--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_PACMTCHDRDTS INDEX 1 INTO DATA(WA_PACMTCHDRDTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PACMTCHDRDTS>-MANDT = 1.
<PACMTCHDRDTS>-TKONN = 1.
<PACMTCHDRDTS>-TCTYP = 1.
<PACMTCHDRDTS>-KUNNR = 1.
<PACMTCHDRDTS>-BTBSTA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PACMTCHDRDTS-ERNAM, sy-vline,
  WA_PACMTCHDRDTS-BUDAT, sy-vline,
  WA_PACMTCHDRDTS-ERDAT, sy-vline,
  WA_PACMTCHDRDTS-ERZEIT, sy-vline,
  WA_PACMTCHDRDTS-AENAM, sy-vline,
  WA_PACMTCHDRDTS-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PACMTCHDRDTS 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_PACMTCHDRDTS 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_PACMTCHDRDTS INTO WA_PACMTCHDRDTS.


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

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

*Conversion exit ALPHA, internal->external for field PURCHASEORDERSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PACMTCHDRDTS-PURCHASEORDERSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PACMTCHDRDTS-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_PACMTCHDRDTS_STR, 
MANDT TYPE STRING,
TKONN TYPE STRING,
TCTYP TYPE STRING,
KUNNR TYPE STRING,
BTBSTA TYPE STRING,
ERNAM TYPE STRING,
BUDAT TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
TKSACHB TYPE STRING,
SDWRS TYPE STRING,
TKONN_EX TYPE STRING,
COMPANY_CODE TYPE STRING,
BEZEI TYPE STRING,
TCTYP_DESCR TYPE STRING,
SIDE TYPE STRING,
PURCHASEORDERSUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
TRADINGCONTRACTCURRENCY TYPE STRING,
TRDGCONTRSALESINCOTERMSVERSION TYPE STRING,
TRDGCONTRSLSINCOTERMSLOC1TEXT TYPE STRING,
TRDGCONTRPURGINCOTERMSVERSION TYPE STRING,
TRDGCONTRPURGINCOTERMSLOC1TEXT TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
ACMPURGINCOTERMSPART1 TYPE STRING,
ACMSLSINCOTERMSPART1 TYPE STRING,
ACMYOURREFERENCE TYPE STRING,
ACMCUSTOMERREFERENCE TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
ALTERNATEPAYMENTTERM TYPE STRING,
INCOTERMSCLASSIFICATIONNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PACMTCHDRDTS_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_PACMTCHDRDTS_STR-MANDT sy-vline 
WA_PACMTCHDRDTS_STR-TKONN sy-vline 
WA_PACMTCHDRDTS_STR-TCTYP sy-vline 
WA_PACMTCHDRDTS_STR-KUNNR sy-vline 
WA_PACMTCHDRDTS_STR-BTBSTA sy-vline 
WA_PACMTCHDRDTS_STR-ERNAM sy-vline 
WA_PACMTCHDRDTS_STR-BUDAT sy-vline 
WA_PACMTCHDRDTS_STR-ERDAT sy-vline 
WA_PACMTCHDRDTS_STR-ERZEIT sy-vline 
WA_PACMTCHDRDTS_STR-AENAM sy-vline 
WA_PACMTCHDRDTS_STR-AEDAT sy-vline 
WA_PACMTCHDRDTS_STR-VKORG sy-vline 
WA_PACMTCHDRDTS_STR-VTWEG sy-vline 
WA_PACMTCHDRDTS_STR-SPART sy-vline 
WA_PACMTCHDRDTS_STR-TKSACHB sy-vline 
WA_PACMTCHDRDTS_STR-SDWRS sy-vline 
WA_PACMTCHDRDTS_STR-TKONN_EX sy-vline 
WA_PACMTCHDRDTS_STR-COMPANY_CODE sy-vline 
WA_PACMTCHDRDTS_STR-BEZEI sy-vline 
WA_PACMTCHDRDTS_STR-TCTYP_DESCR sy-vline 
WA_PACMTCHDRDTS_STR-SIDE sy-vline 
WA_PACMTCHDRDTS_STR-PURCHASEORDERSUPPLIER sy-vline 
WA_PACMTCHDRDTS_STR-PURCHASINGORGANIZATION sy-vline 
WA_PACMTCHDRDTS_STR-PURCHASINGGROUP sy-vline 
WA_PACMTCHDRDTS_STR-TRADINGCONTRACTCURRENCY sy-vline 
WA_PACMTCHDRDTS_STR-TRDGCONTRSALESINCOTERMSVERSION sy-vline 
WA_PACMTCHDRDTS_STR-TRDGCONTRSLSINCOTERMSLOC1TEXT sy-vline 
WA_PACMTCHDRDTS_STR-TRDGCONTRPURGINCOTERMSVERSION sy-vline 
WA_PACMTCHDRDTS_STR-TRDGCONTRPURGINCOTERMSLOC1TEXT sy-vline 
WA_PACMTCHDRDTS_STR-PRICINGDOCUMENT sy-vline 
WA_PACMTCHDRDTS_STR-ACMPURGINCOTERMSPART1 sy-vline 
WA_PACMTCHDRDTS_STR-ACMSLSINCOTERMSPART1 sy-vline 
WA_PACMTCHDRDTS_STR-ACMYOURREFERENCE sy-vline 
WA_PACMTCHDRDTS_STR-ACMCUSTOMERREFERENCE sy-vline 
WA_PACMTCHDRDTS_STR-INCOTERMSLOCATION1 sy-vline 
WA_PACMTCHDRDTS_STR-ALTERNATEPAYMENTTERM sy-vline 
WA_PACMTCHDRDTS_STR-INCOTERMSCLASSIFICATIONNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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