ABAP Select data from SAP table UCU_S_MD_SINGLESELCOND_DUMMY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCU_S_MD_SINGLESELCOND_DUMMY
*  INTO TABLE @DATA(IT_UCU_S_MD_SINGLESELCOND_DUMMY2).
*--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_UCU_S_MD_SINGLESELCOND_DUMMY INDEX 1 INTO DATA(WA_UCU_S_MD_SINGLESELCOND_DUMMY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCU_S_MD_SINGLESELCOND_DUMMY>-FIELDNAME005 = 1.
<UCU_S_MD_SINGLESELCOND_DUMMY>-FIELDNAME007 = 1.
<UCU_S_MD_SINGLESELCOND_DUMMY>-FIELDNAME009 = 1.
<UCU_S_MD_SINGLESELCOND_DUMMY>-HIGH004 = 1.
<UCU_S_MD_SINGLESELCOND_DUMMY>-LOW004 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCU_S_MD_SINGLESELCOND_DUMMY-OPTIO007, sy-vline,
  WA_UCU_S_MD_SINGLESELCOND_DUMMY-SIGN003, sy-vline,
  WA_UCU_S_MD_SINGLESELCOND_DUMMY-SIGN005, sy-vline,
  WA_UCU_S_MD_SINGLESELCOND_DUMMY-VALUE006, sy-vline,
  WA_UCU_S_MD_SINGLESELCOND_DUMMY-VALUE008, sy-vline,
  WA_UCU_S_MD_SINGLESELCOND_DUMMY-VALUE009, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCU_S_MD_SINGLESELCOND_DUMMY 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_UCU_S_MD_SINGLESELCOND_DUMMY 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_UCU_S_MD_SINGLESELCOND_DUMMY INTO WA_UCU_S_MD_SINGLESELCOND_DUMMY.


*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_UCU_S_MD_SINGLESELCOND_DUMMY_STR, 
FIELDNAME005 TYPE STRING,
FIELDNAME007 TYPE STRING,
FIELDNAME009 TYPE STRING,
HIGH004 TYPE STRING,
LOW004 TYPE STRING,
OPTIO007 TYPE STRING,
SIGN003 TYPE STRING,
SIGN005 TYPE STRING,
VALUE006 TYPE STRING,
VALUE008 TYPE STRING,
VALUE009 TYPE STRING,
VALUE010 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCU_S_MD_SINGLESELCOND_DUMMY_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_UCU_S_MD_SINGLESELCOND_DUMMY_STR-FIELDNAME005 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-FIELDNAME007 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-FIELDNAME009 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-HIGH004 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-LOW004 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-OPTIO007 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-SIGN003 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-SIGN005 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-VALUE006 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-VALUE008 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-VALUE009 sy-vline 
WA_UCU_S_MD_SINGLESELCOND_DUMMY_STR-VALUE010 sy-vline      INTO ld_text SEPARATED BY SPACE.

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