ABAP Select data from SAP table EUI_SCREEN_SOURCEH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EUI_SCREEN_SOURCEH
*  INTO TABLE @DATA(IT_EUI_SCREEN_SOURCEH2).
*--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_EUI_SCREEN_SOURCEH INDEX 1 INTO DATA(WA_EUI_SCREEN_SOURCEH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EUI_SCREEN_SOURCEH>-SELECTED = 1.
<EUI_SCREEN_SOURCEH>-MANDT = 1.
<EUI_SCREEN_SOURCEH>-SOURCE = 1.
<EUI_SCREEN_SOURCEH>-DATETO = 1.
<EUI_SCREEN_SOURCEH>-TIMETO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EUI_SCREEN_SOURCEH-DATEFROM, sy-vline,
  WA_EUI_SCREEN_SOURCEH-TIMEFROM, sy-vline,
  WA_EUI_SCREEN_SOURCEH-SRCSYSTEM, sy-vline,
  WA_EUI_SCREEN_SOURCEH-SRCADDR, sy-vline,
  WA_EUI_SCREEN_SOURCEH-SRCSYSTYPE, sy-vline,
  WA_EUI_SCREEN_SOURCEH-SERVICEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EUI_SCREEN_SOURCEH 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_EUI_SCREEN_SOURCEH 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_EUI_SCREEN_SOURCEH INTO WA_EUI_SCREEN_SOURCEH.


*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_EUI_SCREEN_SOURCEH_STR, 
SELECTED TYPE STRING,
MANDT TYPE STRING,
SOURCE TYPE STRING,
DATETO TYPE STRING,
TIMETO TYPE STRING,
DATEFROM TYPE STRING,
TIMEFROM TYPE STRING,
SRCSYSTEM TYPE STRING,
SRCADDR TYPE STRING,
SRCSYSTYPE TYPE STRING,
SERVICEID TYPE STRING,
SRCSYSADDR TYPE STRING,
SRCSYSTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EUI_SCREEN_SOURCEH_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_EUI_SCREEN_SOURCEH_STR-SELECTED sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-MANDT sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SOURCE sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-DATETO sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-TIMETO sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-DATEFROM sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-TIMEFROM sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SRCSYSTEM sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SRCADDR sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SRCSYSTYPE sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SERVICEID sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SRCSYSADDR sy-vline 
WA_EUI_SCREEN_SOURCEH_STR-SRCSYSTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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