ABAP Select data from SAP table ICL_SERVCAT_VERSION_STRUCT2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_SERVCAT_VERSION_STRUCT2 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 ICL_SERVCAT_VERSION_STRUCT2. 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 ICL_SERVCAT_VERSION_STRUCT2 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_ICL_SERVCAT_VERSION_STRUCT2 TYPE STANDARD TABLE OF ICL_SERVCAT_VERSION_STRUCT2,
      WA_ICL_SERVCAT_VERSION_STRUCT2 TYPE ICL_SERVCAT_VERSION_STRUCT2,
      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: <ICL_SERVCAT_VERSION_STRUCT2> TYPE ICL_SERVCAT_VERSION_STRUCT2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICL_SERVCAT_VERSION_STRUCT2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICL_SERVCAT_VERSION_STRUCT2
  INTO TABLE IT_ICL_SERVCAT_VERSION_STRUCT2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_SERVCAT_VERSION_STRUCT2
*  INTO TABLE @DATA(IT_ICL_SERVCAT_VERSION_STRUCT22).
*--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_ICL_SERVCAT_VERSION_STRUCT2 INDEX 1 INTO DATA(WA_ICL_SERVCAT_VERSION_STRUCT22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICL_SERVCAT_VERSION_STRUCT2 ASSIGNING <ICL_SERVCAT_VERSION_STRUCT2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_SERVCAT_VERSION_STRUCT2>-SCPOSID_INT = 1.
<ICL_SERVCAT_VERSION_STRUCT2>-ACTIVE = 1.
<ICL_SERVCAT_VERSION_STRUCT2>-CHANGEDBY = 1.
<ICL_SERVCAT_VERSION_STRUCT2>-CHANGETIME = 1.
<ICL_SERVCAT_VERSION_STRUCT2>-INACTIVETIME = 1.

ENDLOOP.

LOOP AT IT_ICL_SERVCAT_VERSION_STRUCT2 INTO WA_ICL_SERVCAT_VERSION_STRUCT2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_SERVCAT_VERSION_STRUCT2-EFFFROMTIME, sy-vline,
  WA_ICL_SERVCAT_VERSION_STRUCT2-EFFTOTIME, sy-vline,
  WA_ICL_SERVCAT_VERSION_STRUCT2-TERMTIME, sy-vline,
  WA_ICL_SERVCAT_VERSION_STRUCT2-DELETED, sy-vline,
  WA_ICL_SERVCAT_VERSION_STRUCT2-OSYSID, sy-vline,
  WA_ICL_SERVCAT_VERSION_STRUCT2-OMANDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_SERVCAT_VERSION_STRUCT2 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_ICL_SERVCAT_VERSION_STRUCT2 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_ICL_SERVCAT_VERSION_STRUCT2 INTO WA_ICL_SERVCAT_VERSION_STRUCT2.


*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 TSTAM, internal->external for field CHANGETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-CHANGETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-CHANGETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field INACTIVETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-INACTIVETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-INACTIVETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field EFFFROMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-EFFFROMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-EFFFROMTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field EFFTOTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-EFFTOTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-EFFTOTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field TERMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-TERMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-TERMTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field NEXTEFFFROMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_SERVCAT_VERSION_STRUCT2-NEXTEFFFROMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_SERVCAT_VERSION_STRUCT2-NEXTEFFFROMTIME.
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_ICL_SERVCAT_VERSION_STRUCT2_STR, 
SCPOSID_INT TYPE STRING,
ACTIVE TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGETIME TYPE STRING,
INACTIVETIME TYPE STRING,
EFFFROMTIME TYPE STRING,
EFFTOTIME TYPE STRING,
TERMTIME TYPE STRING,
DELETED TYPE STRING,
OSYSID TYPE STRING,
OMANDT TYPE STRING,
SCPOSID_PREV TYPE STRING,
OPERATION TYPE STRING,
OPORDER TYPE STRING,
RECORDTYPE TYPE STRING,
XNEWSECTION TYPE STRING,
MAXVERSION TYPE STRING,
NEXTEFFFROMTIME TYPE STRING,
CHANGE_TABIX TYPE STRING,
XPARENTSUS TYPE STRING,
KEYLEN TYPE STRING,
TABNAME TYPE STRING,
TABKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_SERVCAT_VERSION_STRUCT2_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_ICL_SERVCAT_VERSION_STRUCT2_STR-SCPOSID_INT sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-ACTIVE sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-CHANGEDBY sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-CHANGETIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-INACTIVETIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-EFFFROMTIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-EFFTOTIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-TERMTIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-DELETED sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-OSYSID sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-OMANDT sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-SCPOSID_PREV sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-OPERATION sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-OPORDER sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-RECORDTYPE sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-XNEWSECTION sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-MAXVERSION sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-NEXTEFFFROMTIME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-CHANGE_TABIX sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-XPARENTSUS sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-KEYLEN sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-TABNAME sy-vline 
WA_ICL_SERVCAT_VERSION_STRUCT2_STR-TABKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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