ABAP Select data from SAP table /SCA/SCHED_PR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCA/SCHED_PR 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 /SCA/SCHED_PR. 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 /SCA/SCHED_PR 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_/SCA/SCHED_PR TYPE STANDARD TABLE OF /SCA/SCHED_PR,
      WA_/SCA/SCHED_PR TYPE /SCA/SCHED_PR,
      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: </SCA/SCHED_PR> TYPE /SCA/SCHED_PR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCA/SCHED_PR
  INTO TABLE IT_/SCA/SCHED_PR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCA/SCHED_PR
*  INTO TABLE @DATA(IT_/SCA/SCHED_PR2).
*--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_/SCA/SCHED_PR INDEX 1 INTO DATA(WA_/SCA/SCHED_PR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCA/SCHED_PR ASSIGNING </SCA/SCHED_PR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCA/SCHED_PR>-MANDT = 1.
</SCA/SCHED_PR>-PRTTO = 1.
</SCA/SCHED_PR>-PRTFR = 1.
</SCA/SCHED_PR>-LOCFR = 1.
</SCA/SCHED_PR>-LOCTO = 1.

ENDLOOP.

LOOP AT IT_/SCA/SCHED_PR INTO WA_/SCA/SCHED_PR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCA/SCHED_PR-MATID, sy-vline,
  WA_/SCA/SCHED_PR-ACTIVE, sy-vline,
  WA_/SCA/SCHED_PR-PROFILE, sy-vline,
  WA_/SCA/SCHED_PR-CUSER, sy-vline,
  WA_/SCA/SCHED_PR-CDATE, sy-vline,
  WA_/SCA/SCHED_PR-UUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCA/SCHED_PR 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_/SCA/SCHED_PR 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_/SCA/SCHED_PR INTO WA_/SCA/SCHED_PR.


*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 PGTID, internal->external for field PRTTO
CALL FUNCTION 'CONVERSION_EXIT_PGTID_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/SCHED_PR-PRTTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/SCHED_PR-PRTTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PGTID, internal->external for field PRTFR
CALL FUNCTION 'CONVERSION_EXIT_PGTID_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/SCHED_PR-PRTFR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/SCHED_PR-PRTFR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LTLID, internal->external for field LOCFR
CALL FUNCTION 'CONVERSION_EXIT_LTLID_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/SCHED_PR-LOCFR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/SCHED_PR-LOCFR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LTLID, internal->external for field LOCTO
CALL FUNCTION 'CONVERSION_EXIT_LTLID_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/SCHED_PR-LOCTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/SCHED_PR-LOCTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MTMID, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MTMID_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/SCHED_PR-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/SCHED_PR-MATID.
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_/SCA/SCHED_PR_STR, 
MANDT TYPE STRING,
PRTTO TYPE STRING,
PRTFR TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
MATID TYPE STRING,
ACTIVE TYPE STRING,
PROFILE TYPE STRING,
CUSER TYPE STRING,
CDATE TYPE STRING,
UUSER TYPE STRING,
UDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCA/SCHED_PR_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_/SCA/SCHED_PR_STR-MANDT sy-vline 
WA_/SCA/SCHED_PR_STR-PRTTO sy-vline 
WA_/SCA/SCHED_PR_STR-PRTFR sy-vline 
WA_/SCA/SCHED_PR_STR-LOCFR sy-vline 
WA_/SCA/SCHED_PR_STR-LOCTO sy-vline 
WA_/SCA/SCHED_PR_STR-MATID sy-vline 
WA_/SCA/SCHED_PR_STR-ACTIVE sy-vline 
WA_/SCA/SCHED_PR_STR-PROFILE sy-vline 
WA_/SCA/SCHED_PR_STR-CUSER sy-vline 
WA_/SCA/SCHED_PR_STR-CDATE sy-vline 
WA_/SCA/SCHED_PR_STR-UUSER sy-vline 
WA_/SCA/SCHED_PR_STR-UDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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