ABAP Select data from SAP table ISH_SCREEN_FIELD_STATUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISH_SCREEN_FIELD_STATUS
*  INTO TABLE @DATA(IT_ISH_SCREEN_FIELD_STATUS2).
*--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_ISH_SCREEN_FIELD_STATUS INDEX 1 INTO DATA(WA_ISH_SCREEN_FIELD_STATUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISH_SCREEN_FIELD_STATUS>-NAME = 1.
<ISH_SCREEN_FIELD_STATUS>-FIELD = 1.
<ISH_SCREEN_FIELD_STATUS>-FIELDVALUE = 1.
<ISH_SCREEN_FIELD_STATUS>-SCREEN = 1.
<ISH_SCREEN_FIELD_STATUS>-NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISH_SCREEN_FIELD_STATUS-GROUP1, sy-vline,
  WA_ISH_SCREEN_FIELD_STATUS-GROUP2, sy-vline,
  WA_ISH_SCREEN_FIELD_STATUS-GROUP3, sy-vline,
  WA_ISH_SCREEN_FIELD_STATUS-GROUP4, sy-vline,
  WA_ISH_SCREEN_FIELD_STATUS-REQUIRED, sy-vline,
  WA_ISH_SCREEN_FIELD_STATUS-INPUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISH_SCREEN_FIELD_STATUS 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_ISH_SCREEN_FIELD_STATUS 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_ISH_SCREEN_FIELD_STATUS INTO WA_ISH_SCREEN_FIELD_STATUS.


*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_ISH_SCREEN_FIELD_STATUS_STR, 
NAME TYPE STRING,
FIELD TYPE STRING,
FIELDVALUE TYPE STRING,
SCREEN TYPE STRING,
NAME TYPE STRING,
GROUP1 TYPE STRING,
GROUP2 TYPE STRING,
GROUP3 TYPE STRING,
GROUP4 TYPE STRING,
REQUIRED TYPE STRING,
INPUT TYPE STRING,
OUTPUT TYPE STRING,
INTENSIFIED TYPE STRING,
INVISIBLE TYPE STRING,
LENGTH TYPE STRING,
ACTIVE TYPE STRING,
DISPLAY_3D TYPE STRING,
VALUE_HELP TYPE STRING,
REQUEST TYPE STRING,
VALUES_IN_COMBO TYPE STRING,
COLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISH_SCREEN_FIELD_STATUS_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_ISH_SCREEN_FIELD_STATUS_STR-NAME sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-FIELD sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-FIELDVALUE sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-SCREEN sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-NAME sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-GROUP1 sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-GROUP2 sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-GROUP3 sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-GROUP4 sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-REQUIRED sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-INPUT sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-OUTPUT sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-INTENSIFIED sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-INVISIBLE sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-LENGTH sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-ACTIVE sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-DISPLAY_3D sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-VALUE_HELP sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-REQUEST sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_STR-VALUES_IN_COMBO sy-vline 
WA_ISH_SCREEN_FIELD_STATUS_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.