ABAP Select data from SAP table UCU_S_TASK_PCC_DOCTYPE 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_TASK_PCC_DOCTYPE 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_TASK_PCC_DOCTYPE. 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_TASK_PCC_DOCTYPE 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_TASK_PCC_DOCTYPE TYPE STANDARD TABLE OF UCU_S_TASK_PCC_DOCTYPE,
      WA_UCU_S_TASK_PCC_DOCTYPE TYPE UCU_S_TASK_PCC_DOCTYPE,
      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_TASK_PCC_DOCTYPE> TYPE UCU_S_TASK_PCC_DOCTYPE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCU_S_TASK_PCC_DOCTYPE
*  INTO TABLE @DATA(IT_UCU_S_TASK_PCC_DOCTYPE2).
*--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_TASK_PCC_DOCTYPE INDEX 1 INTO DATA(WA_UCU_S_TASK_PCC_DOCTYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCU_S_TASK_PCC_DOCTYPE>-DOCTY01 = 1.
<UCU_S_TASK_PCC_DOCTYPE>-DOCTY02 = 1.
<UCU_S_TASK_PCC_DOCTYPE>-DOCTY03 = 1.
<UCU_S_TASK_PCC_DOCTYPE>-DOCTY04 = 1.
<UCU_S_TASK_PCC_DOCTYPE>-DOCTY05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY06, sy-vline,
  WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY07, sy-vline,
  WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY08, sy-vline,
  WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY09, sy-vline,
  WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY10, sy-vline,
  WA_UCU_S_TASK_PCC_DOCTYPE-DOCTY11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCU_S_TASK_PCC_DOCTYPE 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_TASK_PCC_DOCTYPE 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_TASK_PCC_DOCTYPE INTO WA_UCU_S_TASK_PCC_DOCTYPE.


*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_TASK_PCC_DOCTYPE_STR, 
DOCTY01 TYPE STRING,
DOCTY02 TYPE STRING,
DOCTY03 TYPE STRING,
DOCTY04 TYPE STRING,
DOCTY05 TYPE STRING,
DOCTY06 TYPE STRING,
DOCTY07 TYPE STRING,
DOCTY08 TYPE STRING,
DOCTY09 TYPE STRING,
DOCTY10 TYPE STRING,
DOCTY11 TYPE STRING,
DOCTY12 TYPE STRING,
DOCTY13 TYPE STRING,
DOCTY14 TYPE STRING,
DOCTY15 TYPE STRING,
DOCTY16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCU_S_TASK_PCC_DOCTYPE_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_TASK_PCC_DOCTYPE_STR-DOCTY01 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY02 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY03 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY04 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY05 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY06 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY07 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY08 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY09 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY10 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY11 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY12 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY13 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY14 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY15 sy-vline 
WA_UCU_S_TASK_PCC_DOCTYPE_STR-DOCTY16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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