ABAP Select data from SAP table VSPICSTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VSPICSTR
*  INTO TABLE @DATA(IT_VSPICSTR2).
*--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_VSPICSTR INDEX 1 INTO DATA(WA_VSPICSTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VSPICSTR>-CLIENT = 1.
<VSPICSTR>-SIGNATURE = 1.
<VSPICSTR>-TRGUID = 1.
<VSPICSTR>-FLDNAME = 1.
<VSPICSTR>-INSTAMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VSPICSTR-AGENTID, sy-vline,
  WA_VSPICSTR-LOGSYS, sy-vline,
  WA_VSPICSTR-LOCSYSID, sy-vline,
  WA_VSPICSTR-LOCCLIENT, sy-vline,
  WA_VSPICSTR-TCODE, sy-vline,
  WA_VSPICSTR-REPORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VSPICSTR 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_VSPICSTR 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_VSPICSTR INTO WA_VSPICSTR.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VSPICSTR-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VSPICSTR-LOGSYS.
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_VSPICSTR_STR, 
CLIENT TYPE STRING,
SIGNATURE TYPE STRING,
TRGUID TYPE STRING,
FLDNAME TYPE STRING,
INSTAMP TYPE STRING,
AGENTID TYPE STRING,
LOGSYS TYPE STRING,
LOCSYSID TYPE STRING,
LOCCLIENT TYPE STRING,
TCODE TYPE STRING,
REPORT TYPE STRING,
DYNPRONR TYPE STRING,
USERNAME TYPE STRING,
TERMINAL TYPE STRING,
TRANSID TYPE STRING,
WPID TYPE STRING,
HOSTIPADR TYPE STRING,
TIMESTAMP TYPE STRING,
VALUE TYPE STRING,
ERROR TYPE STRING,
DELFLAG TYPE STRING,
VBKEY TYPE STRING,
CID TYPE STRING,
CWCNT TYPE STRING,
HASHVAL TYPE STRING,
FINISH TYPE STRING,
TRANSP_PROC_DEP TYPE STRING,
NODEID TYPE STRING,
EVNTSTAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VSPICSTR_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_VSPICSTR_STR-CLIENT sy-vline 
WA_VSPICSTR_STR-SIGNATURE sy-vline 
WA_VSPICSTR_STR-TRGUID sy-vline 
WA_VSPICSTR_STR-FLDNAME sy-vline 
WA_VSPICSTR_STR-INSTAMP sy-vline 
WA_VSPICSTR_STR-AGENTID sy-vline 
WA_VSPICSTR_STR-LOGSYS sy-vline 
WA_VSPICSTR_STR-LOCSYSID sy-vline 
WA_VSPICSTR_STR-LOCCLIENT sy-vline 
WA_VSPICSTR_STR-TCODE sy-vline 
WA_VSPICSTR_STR-REPORT sy-vline 
WA_VSPICSTR_STR-DYNPRONR sy-vline 
WA_VSPICSTR_STR-USERNAME sy-vline 
WA_VSPICSTR_STR-TERMINAL sy-vline 
WA_VSPICSTR_STR-TRANSID sy-vline 
WA_VSPICSTR_STR-WPID sy-vline 
WA_VSPICSTR_STR-HOSTIPADR sy-vline 
WA_VSPICSTR_STR-TIMESTAMP sy-vline 
WA_VSPICSTR_STR-VALUE sy-vline 
WA_VSPICSTR_STR-ERROR sy-vline 
WA_VSPICSTR_STR-DELFLAG sy-vline 
WA_VSPICSTR_STR-VBKEY sy-vline 
WA_VSPICSTR_STR-CID sy-vline 
WA_VSPICSTR_STR-CWCNT sy-vline 
WA_VSPICSTR_STR-HASHVAL sy-vline 
WA_VSPICSTR_STR-FINISH sy-vline 
WA_VSPICSTR_STR-TRANSP_PROC_DEP sy-vline 
WA_VSPICSTR_STR-NODEID sy-vline 
WA_VSPICSTR_STR-EVNTSTAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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