ABAP Select data from SAP table ODATA_CV_S_DIR_BUFFER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ODATA_CV_S_DIR_BUFFER
*  INTO TABLE @DATA(IT_ODATA_CV_S_DIR_BUFFER2).
*--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_ODATA_CV_S_DIR_BUFFER INDEX 1 INTO DATA(WA_ODATA_CV_S_DIR_BUFFER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ODATA_CV_S_DIR_BUFFER>-DOCUMENT_TYPE = 1.
<ODATA_CV_S_DIR_BUFFER>-DOCUMENT_NUMBER = 1.
<ODATA_CV_S_DIR_BUFFER>-DOCUMENT_VERSION = 1.
<ODATA_CV_S_DIR_BUFFER>-DOCUMENT_PART = 1.
<ODATA_CV_S_DIR_BUFFER>-DOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ODATA_CV_S_DIR_BUFFER-DOCUMENTNUMBER, sy-vline,
  WA_ODATA_CV_S_DIR_BUFFER-DOCUMENTVERSION, sy-vline,
  WA_ODATA_CV_S_DIR_BUFFER-DOCUMENTPART, sy-vline,
  WA_ODATA_CV_S_DIR_BUFFER-DESCRIPTION, sy-vline,
  WA_ODATA_CV_S_DIR_BUFFER-USERNAME, sy-vline,
  WA_ODATA_CV_S_DIR_BUFFER-STATUSEXTERN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ODATA_CV_S_DIR_BUFFER 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_ODATA_CV_S_DIR_BUFFER 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_ODATA_CV_S_DIR_BUFFER INTO WA_ODATA_CV_S_DIR_BUFFER.


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

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

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

*Conversion exit NUMCV, internal->external for field REVLEVEL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ODATA_CV_S_DIR_BUFFER-REVLEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODATA_CV_S_DIR_BUFFER-REVLEVEL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field REFDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ODATA_CV_S_DIR_BUFFER-REFDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODATA_CV_S_DIR_BUFFER-REFDOCUMENTNUMBER.
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_ODATA_CV_S_DIR_BUFFER_STR, 
DOCUMENT_TYPE TYPE STRING,
DOCUMENT_NUMBER TYPE STRING,
DOCUMENT_VERSION TYPE STRING,
DOCUMENT_PART TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
DOCUMENTVERSION TYPE STRING,
DOCUMENTPART TYPE STRING,
DESCRIPTION TYPE STRING,
USERNAME TYPE STRING,
STATUSEXTERN TYPE STRING,
STATUSINTERN TYPE STRING,
STATUSLOG TYPE STRING,
LABORATORY TYPE STRING,
ECNUMBER TYPE STRING,
VALIDFROMDATE TYPE STRING,
REVLEVEL TYPE STRING,
DELETEINDICATOR TYPE STRING,
CADINDICATOR TYPE STRING,
STRUCTUREINDICATOR TYPE STRING,
PREDOCUMENTNUMBER TYPE STRING,
PREDOCUMENTVERSION TYPE STRING,
PREDOCUMENTPART TYPE STRING,
PREDOCUMENTTYPE TYPE STRING,
AUTHORITYGROUP TYPE STRING,
DOCFILE1 TYPE STRING,
DATACARRIER1 TYPE STRING,
WSAPPLICATION1 TYPE STRING,
DOCFILE2 TYPE STRING,
DATACARRIER2 TYPE STRING,
WSAPPLICATION2 TYPE STRING,
VRLDAT TYPE STRING,
USERDEFINED1 TYPE STRING,
USERDEFINED2 TYPE STRING,
USERDEFINED3 TYPE STRING,
USERDEFINED4 TYPE STRING,
SAVEDOCFILE1 TYPE STRING,
SAVEDATACARRIER1 TYPE STRING,
SAVEDOCFILE2 TYPE STRING,
SAVEDATACARRIER2 TYPE STRING,
CREATEDATE TYPE STRING,
REFDOCUMENTNUMBER TYPE STRING,
REFDOCUMENTPART TYPE STRING,
REFDOCUMENTVERSION TYPE STRING,
FILESIZE1 TYPE STRING,
FILESIZE2 TYPE STRING,
CMFIXED TYPE STRING,
CMRELEVANCE TYPE STRING,
DESCRIPTIONS TYPE STRING,
OBJECT_LINKS TYPE STRING,
OBJECT_LINKS_DETAILS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ODATA_CV_S_DIR_BUFFER_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_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENT_TYPE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENT_NUMBER sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENT_VERSION sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENT_PART sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENTTYPE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENTNUMBER sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENTVERSION sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCUMENTPART sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DESCRIPTION sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-USERNAME sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-STATUSEXTERN sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-STATUSINTERN sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-STATUSLOG sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-LABORATORY sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-ECNUMBER sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-VALIDFROMDATE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-REVLEVEL sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DELETEINDICATOR sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-CADINDICATOR sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-STRUCTUREINDICATOR sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-PREDOCUMENTNUMBER sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-PREDOCUMENTVERSION sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-PREDOCUMENTPART sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-PREDOCUMENTTYPE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-AUTHORITYGROUP sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCFILE1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DATACARRIER1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-WSAPPLICATION1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DOCFILE2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DATACARRIER2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-WSAPPLICATION2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-VRLDAT sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-USERDEFINED1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-USERDEFINED2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-USERDEFINED3 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-USERDEFINED4 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-SAVEDOCFILE1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-SAVEDATACARRIER1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-SAVEDOCFILE2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-SAVEDATACARRIER2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-CREATEDATE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-REFDOCUMENTNUMBER sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-REFDOCUMENTPART sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-REFDOCUMENTVERSION sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-FILESIZE1 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-FILESIZE2 sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-CMFIXED sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-CMRELEVANCE sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-DESCRIPTIONS sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-OBJECT_LINKS sy-vline 
WA_ODATA_CV_S_DIR_BUFFER_STR-OBJECT_LINKS_DETAILS sy-vline      INTO ld_text SEPARATED BY SPACE.

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