ABAP Select data from SAP table OAF_V_SCHEDTMPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OAF_V_SCHEDTMPL
*  INTO TABLE @DATA(IT_OAF_V_SCHEDTMPL2).
*--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_OAF_V_SCHEDTMPL INDEX 1 INTO DATA(WA_OAF_V_SCHEDTMPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OAF_V_SCHEDTMPL>-CLIENT = 1.
<OAF_V_SCHEDTMPL>-SCHED_TMPL_ID = 1.
<OAF_V_SCHEDTMPL>-SCHED_TYPE = 1.
<OAF_V_SCHEDTMPL>-PRDMINS = 1.
<OAF_V_SCHEDTMPL>-PRDHOURS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OAF_V_SCHEDTMPL-PRDDAYS, sy-vline,
  WA_OAF_V_SCHEDTMPL-PRDWEEKS, sy-vline,
  WA_OAF_V_SCHEDTMPL-PRDMONTHS, sy-vline,
  WA_OAF_V_SCHEDTMPL-PREDJOB, sy-vline,
  WA_OAF_V_SCHEDTMPL-CHECKSTAT, sy-vline,
  WA_OAF_V_SCHEDTMPL-EVENTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OAF_V_SCHEDTMPL 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_OAF_V_SCHEDTMPL 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_OAF_V_SCHEDTMPL INTO WA_OAF_V_SCHEDTMPL.


*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_OAF_V_SCHEDTMPL_STR, 
CLIENT TYPE STRING,
SCHED_TMPL_ID TYPE STRING,
SCHED_TYPE TYPE STRING,
PRDMINS TYPE STRING,
PRDHOURS TYPE STRING,
PRDDAYS TYPE STRING,
PRDWEEKS TYPE STRING,
PRDMONTHS TYPE STRING,
PREDJOB TYPE STRING,
CHECKSTAT TYPE STRING,
EVENTID TYPE STRING,
EVENTPARM TYPE STRING,
OPMODE TYPE STRING,
WDAYNO TYPE STRING,
CALENDARID TYPE STRING,
SDLSTRTTM TYPE STRING,
SCHED_TMPL_DESC TYPE STRING,
RELMONTH TYPE STRING,
REFSTRDATE TYPE STRING,
REFSTRTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OAF_V_SCHEDTMPL_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_OAF_V_SCHEDTMPL_STR-CLIENT sy-vline 
WA_OAF_V_SCHEDTMPL_STR-SCHED_TMPL_ID sy-vline 
WA_OAF_V_SCHEDTMPL_STR-SCHED_TYPE sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PRDMINS sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PRDHOURS sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PRDDAYS sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PRDWEEKS sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PRDMONTHS sy-vline 
WA_OAF_V_SCHEDTMPL_STR-PREDJOB sy-vline 
WA_OAF_V_SCHEDTMPL_STR-CHECKSTAT sy-vline 
WA_OAF_V_SCHEDTMPL_STR-EVENTID sy-vline 
WA_OAF_V_SCHEDTMPL_STR-EVENTPARM sy-vline 
WA_OAF_V_SCHEDTMPL_STR-OPMODE sy-vline 
WA_OAF_V_SCHEDTMPL_STR-WDAYNO sy-vline 
WA_OAF_V_SCHEDTMPL_STR-CALENDARID sy-vline 
WA_OAF_V_SCHEDTMPL_STR-SDLSTRTTM sy-vline 
WA_OAF_V_SCHEDTMPL_STR-SCHED_TMPL_DESC sy-vline 
WA_OAF_V_SCHEDTMPL_STR-RELMONTH sy-vline 
WA_OAF_V_SCHEDTMPL_STR-REFSTRDATE sy-vline 
WA_OAF_V_SCHEDTMPL_STR-REFSTRTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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