ABAP Select data from SAP table FDTS_WD_STATIC_MTH_PARAM_LINES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDTS_WD_STATIC_MTH_PARAM_LINES
*  INTO TABLE @DATA(IT_FDTS_WD_STATIC_MTH_PARAM_LINES2).
*--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_FDTS_WD_STATIC_MTH_PARAM_LINES INDEX 1 INTO DATA(WA_FDTS_WD_STATIC_MTH_PARAM_LINES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDTS_WD_STATIC_MTH_PARAM_LINES>-ID = 1.
<FDTS_WD_STATIC_MTH_PARAM_LINES>-ID_DISPLAY_NAME = 1.
<FDTS_WD_STATIC_MTH_PARAM_LINES>-ID_ICON = 1.
<FDTS_WD_STATIC_MTH_PARAM_LINES>-ID_TOOLTIP = 1.
<FDTS_WD_STATIC_MTH_PARAM_LINES>-PARAM_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDTS_WD_STATIC_MTH_PARAM_LINES-PARAM_TYPE, sy-vline,
  WA_FDTS_WD_STATIC_MTH_PARAM_LINES-MOVE_TYPE, sy-vline,
  WA_FDTS_WD_STATIC_MTH_PARAM_LINES-IS_EXPANDED, sy-vline,
  WA_FDTS_WD_STATIC_MTH_PARAM_LINES-IS_LEAF, sy-vline,
  WA_FDTS_WD_STATIC_MTH_PARAM_LINES-VALUE, sy-vline,
  WA_FDTS_WD_STATIC_MTH_PARAM_LINES-IS_VALUE_ENABLED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDTS_WD_STATIC_MTH_PARAM_LINES 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_FDTS_WD_STATIC_MTH_PARAM_LINES 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_FDTS_WD_STATIC_MTH_PARAM_LINES INTO WA_FDTS_WD_STATIC_MTH_PARAM_LINES.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FDTS_WD_STATIC_MTH_PARAM_LINES_STR, 
ID TYPE STRING,
ID_DISPLAY_NAME TYPE STRING,
ID_ICON TYPE STRING,
ID_TOOLTIP TYPE STRING,
PARAM_NAME TYPE STRING,
PARAM_TYPE TYPE STRING,
MOVE_TYPE TYPE STRING,
IS_EXPANDED TYPE STRING,
IS_LEAF TYPE STRING,
VALUE TYPE STRING,
IS_VALUE_ENABLED TYPE STRING,
IS_MOVE_TYPE_ENABLED TYPE STRING,
MOVE_TEXT TYPE STRING,
SHOW_REMOVE TYPE STRING,
PARAM_DO_TYPE TYPE STRING,
PARAM_ABAP_TYPE TYPE STRING,
PARENT_PARAM_ABAP_TYPE TYPE STRING,
MOVE_VALUE_ENABLED TYPE STRING,
MOVE_DATE_ENABLED TYPE STRING,
MOVE_TIME_ENABLED TYPE STRING,
MOVE_TS_ENABLED TYPE STRING,
MOVE_SUPP_ENABLED TYPE STRING,
MOVE_MC_ENABLED TYPE STRING,
IS_ID_MAPPED_TO_TABLE TYPE STRING,
IS_PARENT_MAPPING_ENABLED TYPE STRING,
PARAM_USAGE TYPE STRING,
SELECTED_POPIN TYPE STRING,
PARAM_DDIC_TYPE TYPE STRING,
ELEMENT_UUID TYPE STRING,
CONSTANT_UUID TYPE STRING,
IS_PARAM_UNSTR_TABLE TYPE STRING,
IS_SEARCH_CREATE_ENABLED TYPE STRING,
IS_TABLE_ENABLED TYPE STRING,
IS_STRUC_ENABLED TYPE STRING,
IS_NUM_ENABLED TYPE STRING,
IS_TEXT_ENABLED TYPE STRING,
IS_TP_ENABLED TYPE STRING,
PARENT_TABLE_ID TYPE STRING,
COMP_DESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDTS_WD_STATIC_MTH_PARAM_LINES_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_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-ID sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-ID_DISPLAY_NAME sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-ID_ICON sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-ID_TOOLTIP sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_NAME sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_EXPANDED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_LEAF sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-VALUE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_VALUE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_MOVE_TYPE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_TEXT sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-SHOW_REMOVE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_DO_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_ABAP_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARENT_PARAM_ABAP_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_VALUE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_DATE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_TIME_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_TS_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_SUPP_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-MOVE_MC_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_ID_MAPPED_TO_TABLE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_PARENT_MAPPING_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_USAGE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-SELECTED_POPIN sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARAM_DDIC_TYPE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-ELEMENT_UUID sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-CONSTANT_UUID sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_PARAM_UNSTR_TABLE sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_SEARCH_CREATE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_TABLE_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_STRUC_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_NUM_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_TEXT_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-IS_TP_ENABLED sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-PARENT_TABLE_ID sy-vline 
WA_FDTS_WD_STATIC_MTH_PARAM_LINES_STR-COMP_DESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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