ABAP Select data from SAP table PDSPDAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDSPDAY
*  INTO TABLE @DATA(IT_PDSPDAY2).
*--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_PDSPDAY INDEX 1 INTO DATA(WA_PDSPDAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDSPDAY>-EXPAND = 1.
<PDSPDAY>-MARK = 1.
<PDSPDAY>-NAME = 1.
<PDSPDAY>-PERNR = 1.
<PDSPDAY>-INFO1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDSPDAY-INFO2, sy-vline,
  WA_PDSPDAY-INFO3, sy-vline,
  WA_PDSPDAY-INFO4, sy-vline,
  WA_PDSPDAY-SHIFT, sy-vline,
  WA_PDSPDAY-SHIFT_TEXT, sy-vline,
  WA_PDSPDAY-TIME_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDSPDAY 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_PDSPDAY 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_PDSPDAY INTO WA_PDSPDAY.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDSPDAY-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDSPDAY-KOSTL.
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_PDSPDAY_STR, 
EXPAND TYPE STRING,
MARK TYPE STRING,
NAME TYPE STRING,
PERNR TYPE STRING,
INFO1 TYPE STRING,
INFO2 TYPE STRING,
INFO3 TYPE STRING,
INFO4 TYPE STRING,
SHIFT TYPE STRING,
SHIFT_TEXT TYPE STRING,
TIME_FROM TYPE STRING,
TIME_TO TYPE STRING,
ZELLE01 TYPE STRING,
ZELLE02 TYPE STRING,
ZELLE03 TYPE STRING,
ZELLE04 TYPE STRING,
ZELLE05 TYPE STRING,
ZELLE06 TYPE STRING,
ZELLE07 TYPE STRING,
ZELLE08 TYPE STRING,
ZELLE09 TYPE STRING,
ZELLE10 TYPE STRING,
ZELLE11 TYPE STRING,
ZELLE12 TYPE STRING,
ZELLE13 TYPE STRING,
ZELLE14 TYPE STRING,
ZELLE15 TYPE STRING,
ZELLE16 TYPE STRING,
ZELLE17 TYPE STRING,
ZELLE18 TYPE STRING,
ZELLE19 TYPE STRING,
ZELLE20 TYPE STRING,
ZELLE21 TYPE STRING,
ZELLE22 TYPE STRING,
ZELLE23 TYPE STRING,
ZELLE24 TYPE STRING,
ZELLE25 TYPE STRING,
SHIFTGROUP TYPE STRING,
BREAK_FLAG TYPE STRING,
MORE_INFO TYPE STRING,
ASSIGN_FLAG TYPE STRING,
TAGTY TYPE STRING,
STNBY TYPE STRING,
PREV_DAY TYPE STRING,
PREV_ASSIGN TYPE STRING,
KOSTL TYPE STRING,
KOSTLT TYPE STRING,
KOKRS TYPE STRING,
TEXT TYPE STRING,
CHECK_OVERLAP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDSPDAY_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_PDSPDAY_STR-EXPAND sy-vline 
WA_PDSPDAY_STR-MARK sy-vline 
WA_PDSPDAY_STR-NAME sy-vline 
WA_PDSPDAY_STR-PERNR sy-vline 
WA_PDSPDAY_STR-INFO1 sy-vline 
WA_PDSPDAY_STR-INFO2 sy-vline 
WA_PDSPDAY_STR-INFO3 sy-vline 
WA_PDSPDAY_STR-INFO4 sy-vline 
WA_PDSPDAY_STR-SHIFT sy-vline 
WA_PDSPDAY_STR-SHIFT_TEXT sy-vline 
WA_PDSPDAY_STR-TIME_FROM sy-vline 
WA_PDSPDAY_STR-TIME_TO sy-vline 
WA_PDSPDAY_STR-ZELLE01 sy-vline 
WA_PDSPDAY_STR-ZELLE02 sy-vline 
WA_PDSPDAY_STR-ZELLE03 sy-vline 
WA_PDSPDAY_STR-ZELLE04 sy-vline 
WA_PDSPDAY_STR-ZELLE05 sy-vline 
WA_PDSPDAY_STR-ZELLE06 sy-vline 
WA_PDSPDAY_STR-ZELLE07 sy-vline 
WA_PDSPDAY_STR-ZELLE08 sy-vline 
WA_PDSPDAY_STR-ZELLE09 sy-vline 
WA_PDSPDAY_STR-ZELLE10 sy-vline 
WA_PDSPDAY_STR-ZELLE11 sy-vline 
WA_PDSPDAY_STR-ZELLE12 sy-vline 
WA_PDSPDAY_STR-ZELLE13 sy-vline 
WA_PDSPDAY_STR-ZELLE14 sy-vline 
WA_PDSPDAY_STR-ZELLE15 sy-vline 
WA_PDSPDAY_STR-ZELLE16 sy-vline 
WA_PDSPDAY_STR-ZELLE17 sy-vline 
WA_PDSPDAY_STR-ZELLE18 sy-vline 
WA_PDSPDAY_STR-ZELLE19 sy-vline 
WA_PDSPDAY_STR-ZELLE20 sy-vline 
WA_PDSPDAY_STR-ZELLE21 sy-vline 
WA_PDSPDAY_STR-ZELLE22 sy-vline 
WA_PDSPDAY_STR-ZELLE23 sy-vline 
WA_PDSPDAY_STR-ZELLE24 sy-vline 
WA_PDSPDAY_STR-ZELLE25 sy-vline 
WA_PDSPDAY_STR-SHIFTGROUP sy-vline 
WA_PDSPDAY_STR-BREAK_FLAG sy-vline 
WA_PDSPDAY_STR-MORE_INFO sy-vline 
WA_PDSPDAY_STR-ASSIGN_FLAG sy-vline 
WA_PDSPDAY_STR-TAGTY sy-vline 
WA_PDSPDAY_STR-STNBY sy-vline 
WA_PDSPDAY_STR-PREV_DAY sy-vline 
WA_PDSPDAY_STR-PREV_ASSIGN sy-vline 
WA_PDSPDAY_STR-KOSTL sy-vline 
WA_PDSPDAY_STR-KOSTLT sy-vline 
WA_PDSPDAY_STR-KOKRS sy-vline 
WA_PDSPDAY_STR-TEXT sy-vline 
WA_PDSPDAY_STR-CHECK_OVERLAP sy-vline      INTO ld_text SEPARATED BY SPACE.

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