ABAP Select data from SAP table /BSNAGT/FILE_INF_CDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BSNAGT/FILE_INF_CDS
*  INTO TABLE @DATA(IT_/BSNAGT/FILE_INF_CDS2).
*--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_/BSNAGT/FILE_INF_CDS INDEX 1 INTO DATA(WA_/BSNAGT/FILE_INF_CDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BSNAGT/FILE_INF_CDS>-MANDT = 1.
</BSNAGT/FILE_INF_CDS>-GUID = 1.
</BSNAGT/FILE_INF_CDS>-DNAME = 1.
</BSNAGT/FILE_INF_CDS>-MESSAGETYPE = 1.
</BSNAGT/FILE_INF_CDS>-FILENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BSNAGT/FILE_INF_CDS-SENDERID, sy-vline,
  WA_/BSNAGT/FILE_INF_CDS-RECEIVERID, sy-vline,
  WA_/BSNAGT/FILE_INF_CDS-MESSAGEID, sy-vline,
  WA_/BSNAGT/FILE_INF_CDS-FILEDIRECTION, sy-vline,
  WA_/BSNAGT/FILE_INF_CDS-REFERENCE_ID, sy-vline,
  WA_/BSNAGT/FILE_INF_CDS-CRUSR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BSNAGT/FILE_INF_CDS 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_/BSNAGT/FILE_INF_CDS 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_/BSNAGT/FILE_INF_CDS INTO WA_/BSNAGT/FILE_INF_CDS.


*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_/BSNAGT/FILE_INF_CDS_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
DNAME TYPE STRING,
MESSAGETYPE TYPE STRING,
FILENAME TYPE STRING,
SENDERID TYPE STRING,
RECEIVERID TYPE STRING,
MESSAGEID TYPE STRING,
FILEDIRECTION TYPE STRING,
REFERENCE_ID TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIME TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIME TYPE STRING,
ARC_STATUS TYPE STRING,
MESSAGECONTENT TYPE STRING,
RELATBUSOBJ TYPE STRING,
PARENT_GUID TYPE STRING,
REASONCODE TYPE STRING,
EXTNUMBER TYPE STRING,
REL_MESSAGEID TYPE STRING,
EXT_HEADER TYPE STRING,
TRANS_CATE TYPE STRING,
NUM_OF_RECORDS TYPE STRING,
CONTENT_CAT TYPE STRING,
BULK_GUID TYPE STRING,
UETR TYPE STRING,
STATUS TYPE STRING,
SEC_APPLIED TYPE STRING,
SEC_APPLIED_DATE TYPE STRING,
SEC_APPLIED_TIME TYPE STRING,
SEC_APPLIED_USER TYPE STRING,
ORIG_APP_TYPE TYPE STRING,
ORIG_NAV_REF TYPE STRING,
CODEPAGE TYPE STRING,
COMPRESS_CAT TYPE STRING,
COMP_APPLIED TYPE STRING,
SENSITIVE TYPE STRING,
EXPIRATION_DATE TYPE STRING,
BATCH_NO TYPE STRING,
DUPLICATE TYPE STRING,
EXPIRED TYPE STRING,
ROUTING_CAT TYPE STRING,
ROUTE_NAME TYPE STRING,
PAYMENT_RUN_ID TYPE STRING,
PAYMENT_RUN_DATE TYPE STRING,
PAYMENT_RUN_COMPANY_CODE TYPE STRING,
REFERENCE_NUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BSNAGT/FILE_INF_CDS_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_/BSNAGT/FILE_INF_CDS_STR-MANDT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-GUID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-DNAME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-MESSAGETYPE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-FILENAME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SENDERID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-RECEIVERID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-MESSAGEID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-FILEDIRECTION sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-REFERENCE_ID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CRUSR sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CRDAT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CRTIME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CHUSR sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CHDAT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CHTIME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-ARC_STATUS sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-MESSAGECONTENT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-RELATBUSOBJ sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-PARENT_GUID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-REASONCODE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-EXTNUMBER sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-REL_MESSAGEID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-EXT_HEADER sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-TRANS_CATE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-NUM_OF_RECORDS sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CONTENT_CAT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-BULK_GUID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-UETR sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-STATUS sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SEC_APPLIED sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SEC_APPLIED_DATE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SEC_APPLIED_TIME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SEC_APPLIED_USER sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-ORIG_APP_TYPE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-ORIG_NAV_REF sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-CODEPAGE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-COMPRESS_CAT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-COMP_APPLIED sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-SENSITIVE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-EXPIRATION_DATE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-BATCH_NO sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-DUPLICATE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-EXPIRED sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-ROUTING_CAT sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-ROUTE_NAME sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-PAYMENT_RUN_ID sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-PAYMENT_RUN_DATE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-PAYMENT_RUN_COMPANY_CODE sy-vline 
WA_/BSNAGT/FILE_INF_CDS_STR-REFERENCE_NUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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