ABAP Select data from SAP table VCRMA_SERVICE_OS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCRMA_SERVICE_OS
*  INTO TABLE @DATA(IT_VCRMA_SERVICE_OS2).
*--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_VCRMA_SERVICE_OS INDEX 1 INTO DATA(WA_VCRMA_SERVICE_OS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCRMA_SERVICE_OS>-CLIENT = 1.
<VCRMA_SERVICE_OS>-GUID = 1.
<VCRMA_SERVICE_OS>-CAT_GUID = 1.
<VCRMA_SERVICE_OS>-GUID_REF = 1.
<VCRMA_SERVICE_OS>-USERNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCRMA_SERVICE_OS-TIMESTAMP, sy-vline,
  WA_VCRMA_SERVICE_OS-KATALOGART, sy-vline,
  WA_VCRMA_SERVICE_OS-CODEGRUPPE, sy-vline,
  WA_VCRMA_SERVICE_OS-CODE, sy-vline,
  WA_VCRMA_SERVICE_OS-DEFECTCLASS, sy-vline,
  WA_VCRMA_SERVICE_OS-QUALITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCRMA_SERVICE_OS 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_VCRMA_SERVICE_OS 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_VCRMA_SERVICE_OS INTO WA_VCRMA_SERVICE_OS.


*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 TSTPS, internal->external for field TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_VCRMA_SERVICE_OS-TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCRMA_SERVICE_OS-TIMESTAMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ERMSI, internal->external for field ASP_ID
CALL FUNCTION 'CONVERSION_EXIT_ERMSI_OUTPUT'
  EXPORTING
    input =                      WA_VCRMA_SERVICE_OS-ASP_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCRMA_SERVICE_OS-ASP_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ERMSI, internal->external for field CAT_ID
CALL FUNCTION 'CONVERSION_EXIT_ERMSI_OUTPUT'
  EXPORTING
    input =                      WA_VCRMA_SERVICE_OS-CAT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCRMA_SERVICE_OS-CAT_ID.
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_VCRMA_SERVICE_OS_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
CAT_GUID TYPE STRING,
GUID_REF TYPE STRING,
USERNAME TYPE STRING,
TIMESTAMP TYPE STRING,
KATALOGART TYPE STRING,
CODEGRUPPE TYPE STRING,
CODE TYPE STRING,
DEFECTCLASS TYPE STRING,
QUALITY TYPE STRING,
DEFQUANTITY TYPE STRING,
GUID_HIERARCHY TYPE STRING,
SORT TYPE STRING,
EXT_CODE TYPE STRING,
ASP_ID TYPE STRING,
CAT_ID TYPE STRING,
KATALOG_TYPE TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCRMA_SERVICE_OS_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_VCRMA_SERVICE_OS_STR-CLIENT sy-vline 
WA_VCRMA_SERVICE_OS_STR-GUID sy-vline 
WA_VCRMA_SERVICE_OS_STR-CAT_GUID sy-vline 
WA_VCRMA_SERVICE_OS_STR-GUID_REF sy-vline 
WA_VCRMA_SERVICE_OS_STR-USERNAME sy-vline 
WA_VCRMA_SERVICE_OS_STR-TIMESTAMP sy-vline 
WA_VCRMA_SERVICE_OS_STR-KATALOGART sy-vline 
WA_VCRMA_SERVICE_OS_STR-CODEGRUPPE sy-vline 
WA_VCRMA_SERVICE_OS_STR-CODE sy-vline 
WA_VCRMA_SERVICE_OS_STR-DEFECTCLASS sy-vline 
WA_VCRMA_SERVICE_OS_STR-QUALITY sy-vline 
WA_VCRMA_SERVICE_OS_STR-DEFQUANTITY sy-vline 
WA_VCRMA_SERVICE_OS_STR-GUID_HIERARCHY sy-vline 
WA_VCRMA_SERVICE_OS_STR-SORT sy-vline 
WA_VCRMA_SERVICE_OS_STR-EXT_CODE sy-vline 
WA_VCRMA_SERVICE_OS_STR-ASP_ID sy-vline 
WA_VCRMA_SERVICE_OS_STR-CAT_ID sy-vline 
WA_VCRMA_SERVICE_OS_STR-KATALOG_TYPE sy-vline 
WA_VCRMA_SERVICE_OS_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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