ABAP Select data from SAP table RN2GL_PATHWAY_LISTFORMAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2GL_PATHWAY_LISTFORMAT 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_PATHWAY_LISTFORMAT. 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_PATHWAY_LISTFORMAT 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_PATHWAY_LISTFORMAT TYPE STANDARD TABLE OF RN2GL_PATHWAY_LISTFORMAT,
      WA_RN2GL_PATHWAY_LISTFORMAT TYPE RN2GL_PATHWAY_LISTFORMAT,
      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_PATHWAY_LISTFORMAT> TYPE RN2GL_PATHWAY_LISTFORMAT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2GL_PATHWAY_LISTFORMAT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2GL_PATHWAY_LISTFORMAT
  INTO TABLE IT_RN2GL_PATHWAY_LISTFORMAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2GL_PATHWAY_LISTFORMAT
*  INTO TABLE @DATA(IT_RN2GL_PATHWAY_LISTFORMAT2).
*--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_PATHWAY_LISTFORMAT INDEX 1 INTO DATA(WA_RN2GL_PATHWAY_LISTFORMAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2GL_PATHWAY_LISTFORMAT ASSIGNING <RN2GL_PATHWAY_LISTFORMAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2GL_PATHWAY_LISTFORMAT>-MANDT = 1.
<RN2GL_PATHWAY_LISTFORMAT>-SCHEDULE_ID = 1.
<RN2GL_PATHWAY_LISTFORMAT>-STEP_ID = 1.
<RN2GL_PATHWAY_LISTFORMAT>-EINRI = 1.
<RN2GL_PATHWAY_LISTFORMAT>-FALNR = 1.

ENDLOOP.

LOOP AT IT_RN2GL_PATHWAY_LISTFORMAT INTO WA_RN2GL_PATHWAY_LISTFORMAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2GL_PATHWAY_LISTFORMAT-GROUP_ID, sy-vline,
  WA_RN2GL_PATHWAY_LISTFORMAT-GROUP_NAME, sy-vline,
  WA_RN2GL_PATHWAY_LISTFORMAT-SEQUENCE_NUMBER, sy-vline,
  WA_RN2GL_PATHWAY_LISTFORMAT-ITEM_ID, sy-vline,
  WA_RN2GL_PATHWAY_LISTFORMAT-STEP_STATE, sy-vline,
  WA_RN2GL_PATHWAY_LISTFORMAT-STEP_NOTE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2GL_PATHWAY_LISTFORMAT 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_PATHWAY_LISTFORMAT 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_PATHWAY_LISTFORMAT INTO WA_RN2GL_PATHWAY_LISTFORMAT.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_PATHWAY_LISTFORMAT-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_PATHWAY_LISTFORMAT-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_PATHWAY_LISTFORMAT-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_PATHWAY_LISTFORMAT-FALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GROUP_NAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_PATHWAY_LISTFORMAT-GROUP_NAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_PATHWAY_LISTFORMAT-GROUP_NAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STEP_NOTE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_PATHWAY_LISTFORMAT-STEP_NOTE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_PATHWAY_LISTFORMAT-STEP_NOTE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2GL_PATHWAY_LISTFORMAT-EMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2GL_PATHWAY_LISTFORMAT-EMR.
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_PATHWAY_LISTFORMAT_STR, 
MANDT TYPE STRING,
SCHEDULE_ID TYPE STRING,
STEP_ID TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
GROUP_ID TYPE STRING,
GROUP_NAME TYPE STRING,
SEQUENCE_NUMBER TYPE STRING,
ITEM_ID TYPE STRING,
STEP_STATE TYPE STRING,
STEP_NOTE_ID TYPE STRING,
ANSWER_TEXT TYPE STRING,
DURATION TYPE STRING,
ROLE_ID TYPE STRING,
ROLE_TXT TYPE STRING,
REASON_ID TYPE STRING,
ITEMTYPE TYPE STRING,
TM_NAME TYPE STRING,
PATH_RELEVANT TYPE STRING,
ACTION_TYPE TYPE STRING,
BASE_ITEM_ID TYPE STRING,
ACTION_EXECUTED TYPE STRING,
HAS_CORRESP_STEP TYPE STRING,
HAS_DEPEND_STEP TYPE STRING,
PLAN_DATE TYPE STRING,
PLAN_TIME TYPE STRING,
NEW_PLAN_DATE TYPE STRING,
NEW_PLAN_TIME TYPE STRING,
DONE_PLAN_DATE TYPE STRING,
DONE_PLAN_TIME TYPE STRING,
DONE_DATE TYPE STRING,
DONE_TIME TYPE STRING,
DONE_STATE TYPE STRING,
EMR TYPE STRING,
UNPLANNED_STEP TYPE STRING,
URL_ID TYPE STRING,
INSDATE TYPE STRING,
INSUSER TYPE STRING,
UPDDATE TYPE STRING,
UPDUSER TYPE STRING,
DELDATE TYPE STRING,
DELUSER TYPE STRING,
DELFLAG TYPE STRING,
LAST_CHANGE TYPE STRING,
ACTION_BEHAVIOR TYPE STRING,
DIFF_PLAN_DONE TYPE STRING,
GL_VERSION_ID TYPE STRING,
SHORT_CODE TYPE STRING,
ICON_CURR_STATE TYPE STRING,
ITEMTYPE_ICON TYPE STRING,
ITEMTYPE_TXT TYPE STRING,
ICON_COMMENT TYPE STRING,
ICON_URL TYPE STRING,
LINECOLOR TYPE STRING,
TITLE_CLIN TYPE STRING,
ICON_ACTION_EXECUTE TYPE STRING,
ICON_RECALCULATED TYPE STRING,
COLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2GL_PATHWAY_LISTFORMAT_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_PATHWAY_LISTFORMAT_STR-MANDT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-SCHEDULE_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-STEP_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-EINRI sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-FALNR sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-GROUP_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-GROUP_NAME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-SEQUENCE_NUMBER sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ITEM_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-STEP_STATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-STEP_NOTE_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ANSWER_TEXT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DURATION sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ROLE_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ROLE_TXT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-REASON_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ITEMTYPE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-TM_NAME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-PATH_RELEVANT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ACTION_TYPE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-BASE_ITEM_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ACTION_EXECUTED sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-HAS_CORRESP_STEP sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-HAS_DEPEND_STEP sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-PLAN_DATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-PLAN_TIME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-NEW_PLAN_DATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-NEW_PLAN_TIME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DONE_PLAN_DATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DONE_PLAN_TIME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DONE_DATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DONE_TIME sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DONE_STATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-EMR sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-UNPLANNED_STEP sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-URL_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-INSDATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-INSUSER sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-UPDDATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-UPDUSER sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DELDATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DELUSER sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DELFLAG sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-LAST_CHANGE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ACTION_BEHAVIOR sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-DIFF_PLAN_DONE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-GL_VERSION_ID sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-SHORT_CODE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ICON_CURR_STATE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ITEMTYPE_ICON sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ITEMTYPE_TXT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ICON_COMMENT sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ICON_URL sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-LINECOLOR sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-TITLE_CLIN sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ICON_ACTION_EXECUTE sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-ICON_RECALCULATED sy-vline 
WA_RN2GL_PATHWAY_LISTFORMAT_STR-COLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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