ABAP Select data from SAP table EEDMSETTLUNIT_SCREEN_HEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EEDMSETTLUNIT_SCREEN_HEAD
*  INTO TABLE @DATA(IT_EEDMSETTLUNIT_SCREEN_HEAD2).
*--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_EEDMSETTLUNIT_SCREEN_HEAD INDEX 1 INTO DATA(WA_EEDMSETTLUNIT_SCREEN_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EEDMSETTLUNIT_SCREEN_HEAD>-SETTLUNIT = 1.
<EEDMSETTLUNIT_SCREEN_HEAD>-SETTLUNITTXT = 1.
<EEDMSETTLUNIT_SCREEN_HEAD>-DATEFROM = 1.
<EEDMSETTLUNIT_SCREEN_HEAD>-TIMEFROM = 1.
<EEDMSETTLUNIT_SCREEN_HEAD>-DATETO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EEDMSETTLUNIT_SCREEN_HEAD-TIMETO, sy-vline,
  WA_EEDMSETTLUNIT_SCREEN_HEAD-SPARTYP, sy-vline,
  WA_EEDMSETTLUNIT_SCREEN_HEAD-SETTLCOORD, sy-vline,
  WA_EEDMSETTLUNIT_SCREEN_HEAD-SETTLCOORDTXT, sy-vline,
  WA_EEDMSETTLUNIT_SCREEN_HEAD-SETTLTRANSCO, sy-vline,
  WA_EEDMSETTLUNIT_SCREEN_HEAD-SETTLTRANSCOTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EEDMSETTLUNIT_SCREEN_HEAD 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_EEDMSETTLUNIT_SCREEN_HEAD 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_EEDMSETTLUNIT_SCREEN_HEAD INTO WA_EEDMSETTLUNIT_SCREEN_HEAD.


*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_EEDMSETTLUNIT_SCREEN_HEAD_STR, 
SETTLUNIT TYPE STRING,
SETTLUNITTXT TYPE STRING,
DATEFROM TYPE STRING,
TIMEFROM TYPE STRING,
DATETO TYPE STRING,
TIMETO TYPE STRING,
SPARTYP TYPE STRING,
SETTLCOORD TYPE STRING,
SETTLCOORDTXT TYPE STRING,
SETTLTRANSCO TYPE STRING,
SETTLTRANSCOTXT TYPE STRING,
SETTLSUPPLIER TYPE STRING,
SETTLSUPPLIERTXT TYPE STRING,
SETTLUNITGEN TYPE STRING,
SUNITCAT TYPE STRING,
SUNITCATTXT TYPE STRING,
SETTLVIEW TYPE STRING,
SETTLVIEWTXT TYPE STRING,
SETTLUNITEXT TYPE STRING,
SETTLUNITGRID TYPE STRING,
SETTLUNITGRIDTXT TYPE STRING,
SETTLUNITRESP TYPE STRING,
SETTLUNITRESPTXT TYPE STRING,
SETTLVIEWADD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EEDMSETTLUNIT_SCREEN_HEAD_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_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNIT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-DATEFROM sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-TIMEFROM sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-DATETO sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-TIMETO sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SPARTYP sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLCOORD sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLCOORDTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLTRANSCO sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLTRANSCOTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLSUPPLIER sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLSUPPLIERTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITGEN sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SUNITCAT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SUNITCATTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLVIEW sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLVIEWTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITEXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITGRID sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITGRIDTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITRESP sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLUNITRESPTXT sy-vline 
WA_EEDMSETTLUNIT_SCREEN_HEAD_STR-SETTLVIEWADD sy-vline      INTO ld_text SEPARATED BY SPACE.

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