ABAP Select data from SAP table /SAPSLL/API_ASN_HDR_R3_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSLL/API_ASN_HDR_R3_S 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 /SAPSLL/API_ASN_HDR_R3_S. 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 /SAPSLL/API_ASN_HDR_R3_S 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_/SAPSLL/API_ASN_HDR_R3_S TYPE STANDARD TABLE OF /SAPSLL/API_ASN_HDR_R3_S,
      WA_/SAPSLL/API_ASN_HDR_R3_S TYPE /SAPSLL/API_ASN_HDR_R3_S,
      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: </SAPSLL/API_ASN_HDR_R3_S> TYPE /SAPSLL/API_ASN_HDR_R3_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPSLL/API_ASN_HDR_R3_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSLL/API_ASN_HDR_R3_S
  INTO TABLE IT_/SAPSLL/API_ASN_HDR_R3_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSLL/API_ASN_HDR_R3_S
*  INTO TABLE @DATA(IT_/SAPSLL/API_ASN_HDR_R3_S2).
*--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_/SAPSLL/API_ASN_HDR_R3_S INDEX 1 INTO DATA(WA_/SAPSLL/API_ASN_HDR_R3_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSLL/API_ASN_HDR_R3_S ASSIGNING </SAPSLL/API_ASN_HDR_R3_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSLL/API_ASN_HDR_R3_S>-APPLICATION_LEVEL = 1.
</SAPSLL/API_ASN_HDR_R3_S>-DOCUMENT_TYPE = 1.
</SAPSLL/API_ASN_HDR_R3_S>-DELETION_INDICATOR = 1.
</SAPSLL/API_ASN_HDR_R3_S>-CANCELLATION_INDICATOR = 1.
</SAPSLL/API_ASN_HDR_R3_S>-INCOT = 1.

ENDLOOP.

LOOP AT IT_/SAPSLL/API_ASN_HDR_R3_S INTO WA_/SAPSLL/API_ASN_HDR_R3_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSLL/API_ASN_HDR_R3_S-INCOLO, sy-vline,
  WA_/SAPSLL/API_ASN_HDR_R3_S-COMPANY_CODE, sy-vline,
  WA_/SAPSLL/API_ASN_HDR_R3_S-CUS_TYPE_REFNO, sy-vline,
  WA_/SAPSLL/API_ASN_HDR_R3_S-CUS_REFNO, sy-vline,
  WA_/SAPSLL/API_ASN_HDR_R3_S-PLANT, sy-vline,
  WA_/SAPSLL/API_ASN_HDR_R3_S-STGE_LOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSLL/API_ASN_HDR_R3_S 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_/SAPSLL/API_ASN_HDR_R3_S 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_/SAPSLL/API_ASN_HDR_R3_S INTO WA_/SAPSLL/API_ASN_HDR_R3_S.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SAPSLL/API_ASN_HDR_R3_S_STR, 
APPLICATION_LEVEL TYPE STRING,
DOCUMENT_TYPE TYPE STRING,
DELETION_INDICATOR TYPE STRING,
CANCELLATION_INDICATOR TYPE STRING,
INCOT TYPE STRING,
INCOLO TYPE STRING,
COMPANY_CODE TYPE STRING,
CUS_TYPE_REFNO TYPE STRING,
CUS_REFNO TYPE STRING,
PLANT TYPE STRING,
STGE_LOC TYPE STRING,
MNSTR_ARR TYPE STRING,
CNTRY_MNSTR_ARR TYPE STRING,
CNTRY_MNSTR_ARR_ISO TYPE STRING,
MNSTR_BORDER TYPE STRING,
CNTRY_MNSTR_BORDER TYPE STRING,
CNTRY_MNSTR_BORDER_ISO TYPE STRING,
DELIVERY_DATE TYPE STRING,
CUS_REFNO_OLD TYPE STRING,
PREV_DOC_TYPE TYPE STRING,
PREV_DOC_TYPE_OLD TYPE STRING,
ADD_DATA1 TYPE STRING,
ADD_DATA2 TYPE STRING,
ADD_DATA3 TYPE STRING,
SIMULATION_MODE TYPE STRING,
LANGU_ISO TYPE STRING,
FLAG_IBD_COMPLETE TYPE STRING,
COMPANY_CODE_CURCY TYPE STRING,
MODE_TR_BORDER TYPE STRING,
MODE_TR_INLAND TYPE STRING,
CRS_BORDER_JOURNEY_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSLL/API_ASN_HDR_R3_S_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_/SAPSLL/API_ASN_HDR_R3_S_STR-APPLICATION_LEVEL sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-DOCUMENT_TYPE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-DELETION_INDICATOR sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CANCELLATION_INDICATOR sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-INCOT sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-INCOLO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-COMPANY_CODE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CUS_TYPE_REFNO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CUS_REFNO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-PLANT sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-STGE_LOC sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-MNSTR_ARR sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CNTRY_MNSTR_ARR sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CNTRY_MNSTR_ARR_ISO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-MNSTR_BORDER sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CNTRY_MNSTR_BORDER sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CNTRY_MNSTR_BORDER_ISO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-DELIVERY_DATE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CUS_REFNO_OLD sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-PREV_DOC_TYPE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-PREV_DOC_TYPE_OLD sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-ADD_DATA1 sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-ADD_DATA2 sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-ADD_DATA3 sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-SIMULATION_MODE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-LANGU_ISO sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-FLAG_IBD_COMPLETE sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-COMPANY_CODE_CURCY sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-MODE_TR_BORDER sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-MODE_TR_INLAND sy-vline 
WA_/SAPSLL/API_ASN_HDR_R3_S_STR-CRS_BORDER_JOURNEY_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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