ABAP Select data from SAP table UMC_YS_TODO_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMC_YS_TODO_EXT
*  INTO TABLE @DATA(IT_UMC_YS_TODO_EXT2).
*--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_UMC_YS_TODO_EXT INDEX 1 INTO DATA(WA_UMC_YS_TODO_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMC_YS_TODO_EXT>-GUID = 1.
<UMC_YS_TODO_EXT>-APP = 1.
<UMC_YS_TODO_EXT>-APPKEY = 1.
<UMC_YS_TODO_EXT>-OTYPE = 1.
<UMC_YS_TODO_EXT>-OKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMC_YS_TODO_EXT-UNAME, sy-vline,
  WA_UMC_YS_TODO_EXT-PERSON_ID, sy-vline,
  WA_UMC_YS_TODO_EXT-UNAME_EMAIL, sy-vline,
  WA_UMC_YS_TODO_EXT-CREATED, sy-vline,
  WA_UMC_YS_TODO_EXT-CREATED_BY, sy-vline,
  WA_UMC_YS_TODO_EXT-CREATED_BY_EMAIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMC_YS_TODO_EXT 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_UMC_YS_TODO_EXT 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_UMC_YS_TODO_EXT INTO WA_UMC_YS_TODO_EXT.


*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 SXIDN, internal->external for field UNAME_EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_UMC_YS_TODO_EXT-UNAME_EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UMC_YS_TODO_EXT-UNAME_EMAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field CREATED_BY_EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_UMC_YS_TODO_EXT-CREATED_BY_EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UMC_YS_TODO_EXT-CREATED_BY_EMAIL.
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_UMC_YS_TODO_EXT_STR, 
GUID TYPE STRING,
APP TYPE STRING,
APPKEY TYPE STRING,
OTYPE TYPE STRING,
OKEY TYPE STRING,
UNAME TYPE STRING,
PERSON_ID TYPE STRING,
UNAME_EMAIL TYPE STRING,
CREATED TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_BY_EMAIL TYPE STRING,
EMAIL_NOTIF TYPE STRING,
DUE_DATE TYPE STRING,
EXPIRE_DATE TYPE STRING,
EXECUTED TYPE STRING,
EXECUTED_BY TYPE STRING,
DELETED TYPE STRING,
DELETED_BY TYPE STRING,
ITEM_TYPE TYPE STRING,
ITEM_SUBTYPE TYPE STRING,
ITEM_KEY TYPE STRING,
ITEM_TXT TYPE STRING,
EXPLAIN_TXT TYPE STRING,
APPTXT TYPE STRING,
OTXT TYPE STRING,
CREATED_DATE TYPE STRING,
TODOTXT TYPE STRING,
DEL_ICON TYPE STRING,
EXEC_ICON TYPE STRING,
CHECKED_ICON TYPE STRING,
CLR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMC_YS_TODO_EXT_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_UMC_YS_TODO_EXT_STR-GUID sy-vline 
WA_UMC_YS_TODO_EXT_STR-APP sy-vline 
WA_UMC_YS_TODO_EXT_STR-APPKEY sy-vline 
WA_UMC_YS_TODO_EXT_STR-OTYPE sy-vline 
WA_UMC_YS_TODO_EXT_STR-OKEY sy-vline 
WA_UMC_YS_TODO_EXT_STR-UNAME sy-vline 
WA_UMC_YS_TODO_EXT_STR-PERSON_ID sy-vline 
WA_UMC_YS_TODO_EXT_STR-UNAME_EMAIL sy-vline 
WA_UMC_YS_TODO_EXT_STR-CREATED sy-vline 
WA_UMC_YS_TODO_EXT_STR-CREATED_BY sy-vline 
WA_UMC_YS_TODO_EXT_STR-CREATED_BY_EMAIL sy-vline 
WA_UMC_YS_TODO_EXT_STR-EMAIL_NOTIF sy-vline 
WA_UMC_YS_TODO_EXT_STR-DUE_DATE sy-vline 
WA_UMC_YS_TODO_EXT_STR-EXPIRE_DATE sy-vline 
WA_UMC_YS_TODO_EXT_STR-EXECUTED sy-vline 
WA_UMC_YS_TODO_EXT_STR-EXECUTED_BY sy-vline 
WA_UMC_YS_TODO_EXT_STR-DELETED sy-vline 
WA_UMC_YS_TODO_EXT_STR-DELETED_BY sy-vline 
WA_UMC_YS_TODO_EXT_STR-ITEM_TYPE sy-vline 
WA_UMC_YS_TODO_EXT_STR-ITEM_SUBTYPE sy-vline 
WA_UMC_YS_TODO_EXT_STR-ITEM_KEY sy-vline 
WA_UMC_YS_TODO_EXT_STR-ITEM_TXT sy-vline 
WA_UMC_YS_TODO_EXT_STR-EXPLAIN_TXT sy-vline 
WA_UMC_YS_TODO_EXT_STR-APPTXT sy-vline 
WA_UMC_YS_TODO_EXT_STR-OTXT sy-vline 
WA_UMC_YS_TODO_EXT_STR-CREATED_DATE sy-vline 
WA_UMC_YS_TODO_EXT_STR-TODOTXT sy-vline 
WA_UMC_YS_TODO_EXT_STR-DEL_ICON sy-vline 
WA_UMC_YS_TODO_EXT_STR-EXEC_ICON sy-vline 
WA_UMC_YS_TODO_EXT_STR-CHECKED_ICON sy-vline 
WA_UMC_YS_TODO_EXT_STR-CLR sy-vline      INTO ld_text SEPARATED BY SPACE.

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