ABAP Select data from SAP table RHWFTSKATT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RHWFTSKATT
*  INTO TABLE @DATA(IT_RHWFTSKATT2).
*--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_RHWFTSKATT INDEX 1 INTO DATA(WA_RHWFTSKATT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RHWFTSKATT>-BEGDA = 1.
<RHWFTSKATT>-ENDDA = 1.
<RHWFTSKATT>-SHORT = 1.
<RHWFTSKATT>-STEXT = 1.
<RHWFTSKATT>-SWOTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RHWFTSKATT-SWMTD, sy-vline,
  WA_RHWFTSKATT-CLSNAM, sy-vline,
  WA_RHWFTSKATT-CLSMET, sy-vline,
  WA_RHWFTSKATT-METHTYPE, sy-vline,
  WA_RHWFTSKATT-BACKGROUND, sy-vline,
  WA_RHWFTSKATT-CONFIRMTSK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RHWFTSKATT 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_RHWFTSKATT 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_RHWFTSKATT INTO WA_RHWFTSKATT.


*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 TCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RHWFTSKATT-TCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHWFTSKATT-TCLASS.
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_RHWFTSKATT_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
SWOTP TYPE STRING,
SWMTD TYPE STRING,
CLSNAM TYPE STRING,
CLSMET TYPE STRING,
METHTYPE TYPE STRING,
BACKGROUND TYPE STRING,
CONFIRMTSK TYPE STRING,
SYNCHRON TYPE STRING,
TTYPE TYPE STRING,
GENERATED TYPE STRING,
ACTOR_FLAG TYPE STRING,
TSKRELSTAT TYPE STRING,
PHONE_ABLE TYPE STRING,
TCODE TYPE STRING,
WEB_ABLE TYPE STRING,
FORM_ABLE TYPE STRING,
TCLASS TYPE STRING,
LOCKED TYPE STRING,
NO_EXEC TYPE STRING,
GENERAL TYPE STRING,
NO_GENSEND TYPE STRING,
NO_SEND TYPE STRING,
WITEXT TYPE STRING,
WFD_ID TYPE STRING,
VERSION TYPE STRING,
ACTIVE TYPE STRING,
ACTIV_DATE TYPE STRING,
ACTIV_TIME TYPE STRING,
SAPRL TYPE STRING,
DEF_ROLE TYPE STRING,
NOT_ROLE TYPE STRING,
DEA_ROLE TYPE STRING,
END_ROLE TYPE STRING,
LAT_ROLE TYPE STRING,
WI_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RHWFTSKATT_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_RHWFTSKATT_STR-BEGDA sy-vline 
WA_RHWFTSKATT_STR-ENDDA sy-vline 
WA_RHWFTSKATT_STR-SHORT sy-vline 
WA_RHWFTSKATT_STR-STEXT sy-vline 
WA_RHWFTSKATT_STR-SWOTP sy-vline 
WA_RHWFTSKATT_STR-SWMTD sy-vline 
WA_RHWFTSKATT_STR-CLSNAM sy-vline 
WA_RHWFTSKATT_STR-CLSMET sy-vline 
WA_RHWFTSKATT_STR-METHTYPE sy-vline 
WA_RHWFTSKATT_STR-BACKGROUND sy-vline 
WA_RHWFTSKATT_STR-CONFIRMTSK sy-vline 
WA_RHWFTSKATT_STR-SYNCHRON sy-vline 
WA_RHWFTSKATT_STR-TTYPE sy-vline 
WA_RHWFTSKATT_STR-GENERATED sy-vline 
WA_RHWFTSKATT_STR-ACTOR_FLAG sy-vline 
WA_RHWFTSKATT_STR-TSKRELSTAT sy-vline 
WA_RHWFTSKATT_STR-PHONE_ABLE sy-vline 
WA_RHWFTSKATT_STR-TCODE sy-vline 
WA_RHWFTSKATT_STR-WEB_ABLE sy-vline 
WA_RHWFTSKATT_STR-FORM_ABLE sy-vline 
WA_RHWFTSKATT_STR-TCLASS sy-vline 
WA_RHWFTSKATT_STR-LOCKED sy-vline 
WA_RHWFTSKATT_STR-NO_EXEC sy-vline 
WA_RHWFTSKATT_STR-GENERAL sy-vline 
WA_RHWFTSKATT_STR-NO_GENSEND sy-vline 
WA_RHWFTSKATT_STR-NO_SEND sy-vline 
WA_RHWFTSKATT_STR-WITEXT sy-vline 
WA_RHWFTSKATT_STR-WFD_ID sy-vline 
WA_RHWFTSKATT_STR-VERSION sy-vline 
WA_RHWFTSKATT_STR-ACTIVE sy-vline 
WA_RHWFTSKATT_STR-ACTIV_DATE sy-vline 
WA_RHWFTSKATT_STR-ACTIV_TIME sy-vline 
WA_RHWFTSKATT_STR-SAPRL sy-vline 
WA_RHWFTSKATT_STR-DEF_ROLE sy-vline 
WA_RHWFTSKATT_STR-NOT_ROLE sy-vline 
WA_RHWFTSKATT_STR-DEA_ROLE sy-vline 
WA_RHWFTSKATT_STR-END_ROLE sy-vline 
WA_RHWFTSKATT_STR-LAT_ROLE sy-vline 
WA_RHWFTSKATT_STR-WI_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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