ABAP Select data from SAP table RN2GL_SDEF_GL_ITEM_SPECIAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2GL_SDEF_GL_ITEM_SPECIAL 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 RN2GL_SDEF_GL_ITEM_SPECIAL. 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 RN2GL_SDEF_GL_ITEM_SPECIAL 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_RN2GL_SDEF_GL_ITEM_SPECIAL TYPE STANDARD TABLE OF RN2GL_SDEF_GL_ITEM_SPECIAL,
      WA_RN2GL_SDEF_GL_ITEM_SPECIAL TYPE RN2GL_SDEF_GL_ITEM_SPECIAL,
      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: <RN2GL_SDEF_GL_ITEM_SPECIAL> TYPE RN2GL_SDEF_GL_ITEM_SPECIAL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2GL_SDEF_GL_ITEM_SPECIAL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2GL_SDEF_GL_ITEM_SPECIAL
  INTO TABLE IT_RN2GL_SDEF_GL_ITEM_SPECIAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2GL_SDEF_GL_ITEM_SPECIAL
*  INTO TABLE @DATA(IT_RN2GL_SDEF_GL_ITEM_SPECIAL2).
*--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_RN2GL_SDEF_GL_ITEM_SPECIAL INDEX 1 INTO DATA(WA_RN2GL_SDEF_GL_ITEM_SPECIAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2GL_SDEF_GL_ITEM_SPECIAL ASSIGNING <RN2GL_SDEF_GL_ITEM_SPECIAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2GL_SDEF_GL_ITEM_SPECIAL>-MANDT = 1.
<RN2GL_SDEF_GL_ITEM_SPECIAL>-ITEM_ID = 1.
<RN2GL_SDEF_GL_ITEM_SPECIAL>-NAME_CLIN = 1.
<RN2GL_SDEF_GL_ITEM_SPECIAL>-NAME_PAT = 1.
<RN2GL_SDEF_GL_ITEM_SPECIAL>-TM_NAME = 1.

ENDLOOP.

LOOP AT IT_RN2GL_SDEF_GL_ITEM_SPECIAL INTO WA_RN2GL_SDEF_GL_ITEM_SPECIAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2GL_SDEF_GL_ITEM_SPECIAL-SHORT_DES, sy-vline,
  WA_RN2GL_SDEF_GL_ITEM_SPECIAL-PRINT_INFO_PAT, sy-vline,
  WA_RN2GL_SDEF_GL_ITEM_SPECIAL-PRINT_INFO_CLIN, sy-vline,
  WA_RN2GL_SDEF_GL_ITEM_SPECIAL-DISP_INFO_PAT, sy-vline,
  WA_RN2GL_SDEF_GL_ITEM_SPECIAL-DISP_INFO_CLIN, sy-vline,
  WA_RN2GL_SDEF_GL_ITEM_SPECIAL-USER_FIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2GL_SDEF_GL_ITEM_SPECIAL 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_RN2GL_SDEF_GL_ITEM_SPECIAL 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_RN2GL_SDEF_GL_ITEM_SPECIAL INTO WA_RN2GL_SDEF_GL_ITEM_SPECIAL.


*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 ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDOSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDOSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDOSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDOSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDOSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-TDOSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_SDEF_GL_ITEM_SPECIAL-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_SDEF_GL_ITEM_SPECIAL-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_RN2GL_SDEF_GL_ITEM_SPECIAL_STR, 
MANDT TYPE STRING,
ITEM_ID TYPE STRING,
NAME_CLIN TYPE STRING,
NAME_PAT TYPE STRING,
TM_NAME TYPE STRING,
SHORT_DES TYPE STRING,
PRINT_INFO_PAT TYPE STRING,
PRINT_INFO_CLIN TYPE STRING,
DISP_INFO_PAT TYPE STRING,
DISP_INFO_CLIN TYPE STRING,
USER_FIELD TYPE STRING,
URL TYPE STRING,
INF_TECH TYPE STRING,
HEADER_CLIN TYPE STRING,
TDOBJECT TYPE STRING,
TDNAME TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
TDTITLE TYPE STRING,
TDFORM TYPE STRING,
TDSTYLE TYPE STRING,
TDVERSION TYPE STRING,
TDFUSER TYPE STRING,
TDFRELES TYPE STRING,
TDFDATE TYPE STRING,
TDFTIME TYPE STRING,
TDLUSER TYPE STRING,
TDLRELES TYPE STRING,
TDLDATE TYPE STRING,
TDLTIME TYPE STRING,
TDLINESIZE TYPE STRING,
TDTXTLINES TYPE STRING,
TDHYPHENAT TYPE STRING,
TDOSPRAS TYPE STRING,
TDTRANSTAT TYPE STRING,
TDMACODE1 TYPE STRING,
TDMACODE2 TYPE STRING,
TDREFOBJ TYPE STRING,
TDREFNAME TYPE STRING,
TDREFID TYPE STRING,
TDTEXTTYPE TYPE STRING,
TDCOMPRESS TYPE STRING,
MANDT TYPE STRING,
TDOCLASS TYPE STRING,
LOGSYS TYPE STRING,
BUFFER_CLIN TYPE STRING,
HEADER_PAT TYPE STRING,
TDOBJECT TYPE STRING,
TDNAME TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
TDTITLE TYPE STRING,
TDFORM TYPE STRING,
TDSTYLE TYPE STRING,
TDVERSION TYPE STRING,
TDFUSER TYPE STRING,
TDFRELES TYPE STRING,
TDFDATE TYPE STRING,
TDFTIME TYPE STRING,
TDLUSER TYPE STRING,
TDLRELES TYPE STRING,
TDLDATE TYPE STRING,
TDLTIME TYPE STRING,
TDLINESIZE TYPE STRING,
TDTXTLINES TYPE STRING,
TDHYPHENAT TYPE STRING,
TDOSPRAS TYPE STRING,
TDTRANSTAT TYPE STRING,
TDMACODE1 TYPE STRING,
TDMACODE2 TYPE STRING,
TDREFOBJ TYPE STRING,
TDREFNAME TYPE STRING,
TDREFID TYPE STRING,
TDTEXTTYPE TYPE STRING,
TDCOMPRESS TYPE STRING,
MANDT TYPE STRING,
TDOCLASS TYPE STRING,
LOGSYS TYPE STRING,
BUFFER_PAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2GL_SDEF_GL_ITEM_SPECIAL_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_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-MANDT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-ITEM_ID sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-NAME_CLIN sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-NAME_PAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TM_NAME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-SHORT_DES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-PRINT_INFO_PAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-PRINT_INFO_CLIN sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-DISP_INFO_PAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-DISP_INFO_CLIN sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-USER_FIELD sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-URL sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-INF_TECH sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-HEADER_CLIN sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOBJECT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDNAME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDID sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDSPRAS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTITLE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFORM sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDSTYLE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDVERSION sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFUSER sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFRELES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFDATE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFTIME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLUSER sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLRELES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLDATE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLTIME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLINESIZE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTXTLINES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDHYPHENAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOSPRAS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTRANSTAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDMACODE1 sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDMACODE2 sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFOBJ sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFNAME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFID sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTEXTTYPE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDCOMPRESS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-MANDT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOCLASS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-LOGSYS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-BUFFER_CLIN sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-HEADER_PAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOBJECT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDNAME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDID sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDSPRAS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTITLE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFORM sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDSTYLE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDVERSION sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFUSER sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFRELES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFDATE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDFTIME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLUSER sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLRELES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLDATE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLTIME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDLINESIZE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTXTLINES sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDHYPHENAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOSPRAS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTRANSTAT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDMACODE1 sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDMACODE2 sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFOBJ sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFNAME sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDREFID sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDTEXTTYPE sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDCOMPRESS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-MANDT sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-TDOCLASS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-LOGSYS sy-vline 
WA_RN2GL_SDEF_GL_ITEM_SPECIAL_STR-BUFFER_PAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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