ABAP Select data from SAP table POWL_EASY_ACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POWL_EASY_ACT
*  INTO TABLE @DATA(IT_POWL_EASY_ACT2).
*--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_POWL_EASY_ACT INDEX 1 INTO DATA(WA_POWL_EASY_ACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POWL_EASY_ACT>-FEEDER_CLASS = 1.
<POWL_EASY_ACT>-ACTPOS = 1.
<POWL_EASY_ACT>-ACTION_ID = 1.
<POWL_EASY_ACT>-ACTION_GROUP = 1.
<POWL_EASY_ACT>-BUTTON_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POWL_EASY_ACT-TOOLTIP, sy-vline,
  WA_POWL_EASY_ACT-SELECT_ROWS, sy-vline,
  WA_POWL_EASY_ACT-SEPARATOR, sy-vline,
  WA_POWL_EASY_ACT-CONF_MESSAGE, sy-vline,
  WA_POWL_EASY_ACT-POWL_TYPE, sy-vline,
  WA_POWL_EASY_ACT-CALL_METHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POWL_EASY_ACT 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_POWL_EASY_ACT 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_POWL_EASY_ACT INTO WA_POWL_EASY_ACT.


*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_POWL_EASY_ACT_STR, 
FEEDER_CLASS TYPE STRING,
ACTPOS TYPE STRING,
ACTION_ID TYPE STRING,
ACTION_GROUP TYPE STRING,
BUTTON_TEXT TYPE STRING,
TOOLTIP TYPE STRING,
SELECT_ROWS TYPE STRING,
SEPARATOR TYPE STRING,
CONF_MESSAGE TYPE STRING,
POWL_TYPE TYPE STRING,
CALL_METHOD TYPE STRING,
WD_APPL TYPE STRING,
WD_PARAM TYPE STRING,
KEY_COLUMN TYPE STRING,
USE_SHARED_OBJ TYPE STRING,
IMAGESOURCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POWL_EASY_ACT_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_POWL_EASY_ACT_STR-FEEDER_CLASS sy-vline 
WA_POWL_EASY_ACT_STR-ACTPOS sy-vline 
WA_POWL_EASY_ACT_STR-ACTION_ID sy-vline 
WA_POWL_EASY_ACT_STR-ACTION_GROUP sy-vline 
WA_POWL_EASY_ACT_STR-BUTTON_TEXT sy-vline 
WA_POWL_EASY_ACT_STR-TOOLTIP sy-vline 
WA_POWL_EASY_ACT_STR-SELECT_ROWS sy-vline 
WA_POWL_EASY_ACT_STR-SEPARATOR sy-vline 
WA_POWL_EASY_ACT_STR-CONF_MESSAGE sy-vline 
WA_POWL_EASY_ACT_STR-POWL_TYPE sy-vline 
WA_POWL_EASY_ACT_STR-CALL_METHOD sy-vline 
WA_POWL_EASY_ACT_STR-WD_APPL sy-vline 
WA_POWL_EASY_ACT_STR-WD_PARAM sy-vline 
WA_POWL_EASY_ACT_STR-KEY_COLUMN sy-vline 
WA_POWL_EASY_ACT_STR-USE_SHARED_OBJ sy-vline 
WA_POWL_EASY_ACT_STR-IMAGESOURCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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