ABAP Select data from SAP table PPDS_SHIFT_DETAIL_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPDS_SHIFT_DETAIL_S
*  INTO TABLE @DATA(IT_PPDS_SHIFT_DETAIL_S2).
*--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_PPDS_SHIFT_DETAIL_S INDEX 1 INTO DATA(WA_PPDS_SHIFT_DETAIL_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPDS_SHIFT_DETAIL_S>-WERKS = 1.
<PPDS_SHIFT_DETAIL_S>-KAPAR = 1.
<PPDS_SHIFT_DETAIL_S>-DATUM = 1.
<PPDS_SHIFT_DETAIL_S>-VERSN = 1.
<PPDS_SHIFT_DETAIL_S>-SCHNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPDS_SHIFT_DETAIL_S-ANZHL, sy-vline,
  WA_PPDS_SHIFT_DETAIL_S-BEGZT, sy-vline,
  WA_PPDS_SHIFT_DETAIL_S-ENDZT, sy-vline,
  WA_PPDS_SHIFT_DETAIL_S-KAPAZ, sy-vline,
  WA_PPDS_SHIFT_DETAIL_S-KAPEH, sy-vline,
  WA_PPDS_SHIFT_DETAIL_S-EINZH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPDS_SHIFT_DETAIL_S 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_PPDS_SHIFT_DETAIL_S 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_PPDS_SHIFT_DETAIL_S INTO WA_PPDS_SHIFT_DETAIL_S.


*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 CUNIT, internal->external for field KAPEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_SHIFT_DETAIL_S-KAPEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_SHIFT_DETAIL_S-KAPEH.
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_PPDS_SHIFT_DETAIL_S_STR, 
WERKS TYPE STRING,
KAPAR TYPE STRING,
DATUM TYPE STRING,
VERSN TYPE STRING,
SCHNR TYPE STRING,
ANZHL TYPE STRING,
BEGZT TYPE STRING,
ENDZT TYPE STRING,
KAPAZ TYPE STRING,
KAPEH TYPE STRING,
EINZH TYPE STRING,
TPROG TYPE STRING,
PAUSE TYPE STRING,
NGRAD TYPE STRING,
WDAY TYPE STRING,
TZONE TYPE STRING,
UEBERLAST TYPE STRING,
ARBPL TYPE STRING,
VERWE TYPE STRING,
BREAKDOWN TYPE STRING,
WEEK TYPE STRING,
TAGNR TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_ON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPDS_SHIFT_DETAIL_S_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_PPDS_SHIFT_DETAIL_S_STR-WERKS sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-KAPAR sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-DATUM sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-VERSN sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-SCHNR sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-ANZHL sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-BEGZT sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-ENDZT sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-KAPAZ sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-KAPEH sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-EINZH sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-TPROG sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-PAUSE sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-NGRAD sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-WDAY sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-TZONE sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-UEBERLAST sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-ARBPL sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-VERWE sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-BREAKDOWN sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-WEEK sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-TAGNR sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-CREATED_ON sy-vline 
WA_PPDS_SHIFT_DETAIL_S_STR-CHANGED_ON sy-vline      INTO ld_text SEPARATED BY SPACE.

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