ABAP Select data from SAP table POWLR_STATUS_MULTI_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POWLR_STATUS_MULTI_STY
*  INTO TABLE @DATA(IT_POWLR_STATUS_MULTI_STY2).
*--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_POWLR_STATUS_MULTI_STY INDEX 1 INTO DATA(WA_POWLR_STATUS_MULTI_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POWLR_STATUS_MULTI_STY>-DESTINATION = 1.
<POWLR_STATUS_MULTI_STY>-REMOTE_STATUS = 1.
<POWLR_STATUS_MULTI_STY>-ACTION_CHANGED = 1.
<POWLR_STATUS_MULTI_STY>-DATA_CHANGED = 1.
<POWLR_STATUS_MULTI_STY>-SELECTION_CHANGED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POWLR_STATUS_MULTI_STY-DO_REFRESH, sy-vline,
  WA_POWLR_STATUS_MULTI_STY-SELCRIT_CHANGED, sy-vline,
  WA_POWLR_STATUS_MULTI_STY-DEF_VALUES_CHANGED, sy-vline,
  WA_POWLR_STATUS_MULTI_STY-CHANGES_PROCESSED, sy-vline,
  WA_POWLR_STATUS_MULTI_STY-DEFAULT_TECH_COL, sy-vline,
  WA_POWLR_STATUS_MULTI_STY-FIRST_VISIBLE_COL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POWLR_STATUS_MULTI_STY 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_POWLR_STATUS_MULTI_STY 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_POWLR_STATUS_MULTI_STY INTO WA_POWLR_STATUS_MULTI_STY.


*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_POWLR_STATUS_MULTI_STY_STR, 
DESTINATION TYPE STRING,
REMOTE_STATUS TYPE STRING,
ACTION_CHANGED TYPE STRING,
DATA_CHANGED TYPE STRING,
SELECTION_CHANGED TYPE STRING,
DO_REFRESH TYPE STRING,
SELCRIT_CHANGED TYPE STRING,
DEF_VALUES_CHANGED TYPE STRING,
CHANGES_PROCESSED TYPE STRING,
DEFAULT_TECH_COL TYPE STRING,
FIRST_VISIBLE_COL TYPE STRING,
FIRST_VISIBLE_ROW TYPE STRING,
VISIBLE_ROW_CNT TYPE STRING,
VISIBLE_COL_CNT TYPE STRING,
ACTION_INVALIDACTION TYPE STRING,
ACTION_CONFIRMATIONEXISTS TYPE STRING,
CHECK_CRITERIA_VALUE TYPE STRING,
TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POWLR_STATUS_MULTI_STY_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_POWLR_STATUS_MULTI_STY_STR-DESTINATION sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-REMOTE_STATUS sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-ACTION_CHANGED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-DATA_CHANGED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-SELECTION_CHANGED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-DO_REFRESH sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-SELCRIT_CHANGED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-DEF_VALUES_CHANGED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-CHANGES_PROCESSED sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-DEFAULT_TECH_COL sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-FIRST_VISIBLE_COL sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-FIRST_VISIBLE_ROW sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-VISIBLE_ROW_CNT sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-VISIBLE_COL_CNT sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-ACTION_INVALIDACTION sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-ACTION_CONFIRMATIONEXISTS sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-CHECK_CRITERIA_VALUE sy-vline 
WA_POWLR_STATUS_MULTI_STY_STR-TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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