ABAP Select data from SAP table GRPC_S_SCHEDULE_SELECTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPC_S_SCHEDULE_SELECTION
*  INTO TABLE @DATA(IT_GRPC_S_SCHEDULE_SELECTION2).
*--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_GRPC_S_SCHEDULE_SELECTION INDEX 1 INTO DATA(WA_GRPC_S_SCHEDULE_SELECTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPC_S_SCHEDULE_SELECTION>-JOBNAME = 1.
<GRPC_S_SCHEDULE_SELECTION>-JOBCOUNT = 1.
<GRPC_S_SCHEDULE_SELECTION>-CONNECTOR = 1.
<GRPC_S_SCHEDULE_SELECTION>-FREQUENCY = 1.
<GRPC_S_SCHEDULE_SELECTION>-SCHEDULE_OPT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPC_S_SCHEDULE_SELECTION-PERIOD_FROM, sy-vline,
  WA_GRPC_S_SCHEDULE_SELECTION-PERIOD_TO, sy-vline,
  WA_GRPC_S_SCHEDULE_SELECTION-JOBCOMMENT, sy-vline,
  WA_GRPC_S_SCHEDULE_SELECTION-OPERATION, sy-vline,
  WA_GRPC_S_SCHEDULE_SELECTION-STARTDATE, sy-vline,
  WA_GRPC_S_SCHEDULE_SELECTION-NOTSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPC_S_SCHEDULE_SELECTION 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_GRPC_S_SCHEDULE_SELECTION 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_GRPC_S_SCHEDULE_SELECTION INTO WA_GRPC_S_SCHEDULE_SELECTION.


*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_GRPC_S_SCHEDULE_SELECTION_STR, 
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
CONNECTOR TYPE STRING,
FREQUENCY TYPE STRING,
SCHEDULE_OPT TYPE STRING,
PERIOD_FROM TYPE STRING,
PERIOD_TO TYPE STRING,
JOBCOMMENT TYPE STRING,
OPERATION TYPE STRING,
STARTDATE TYPE STRING,
NOTSTARTDATE TYPE STRING,
STARTTIME TYPE STRING,
NOTSTARTTIME TYPE STRING,
PERIODIC TYPE STRING,
PRDDAYS TYPE STRING,
JOBTYPE TYPE STRING,
CREATEDBY TYPE STRING,
SCHEDULETYPE TYPE STRING,
DEST_JOBCOUNT TYPE STRING,
TF_YEAR TYPE STRING,
TIMEFRAME TYPE STRING,
TESTLOG_ID TYPE STRING,
CREATEDON TYPE STRING,
DAY_BEFORE TYPE STRING,
EXECUTION_DAY TYPE STRING,
CONNECTOR_TXT TYPE STRING,
TEST_FROM_TXT TYPE STRING,
TEST_TO_TXT TYPE STRING,
IS_TEST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPC_S_SCHEDULE_SELECTION_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_GRPC_S_SCHEDULE_SELECTION_STR-JOBNAME sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-JOBCOUNT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-CONNECTOR sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-FREQUENCY sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-SCHEDULE_OPT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-PERIOD_FROM sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-PERIOD_TO sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-JOBCOMMENT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-OPERATION sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-STARTDATE sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-NOTSTARTDATE sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-STARTTIME sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-NOTSTARTTIME sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-PERIODIC sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-PRDDAYS sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-JOBTYPE sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-CREATEDBY sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-SCHEDULETYPE sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-DEST_JOBCOUNT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-TF_YEAR sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-TIMEFRAME sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-TESTLOG_ID sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-CREATEDON sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-DAY_BEFORE sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-EXECUTION_DAY sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-CONNECTOR_TXT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-TEST_FROM_TXT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-TEST_TO_TXT sy-vline 
WA_GRPC_S_SCHEDULE_SELECTION_STR-IS_TEST sy-vline      INTO ld_text SEPARATED BY SPACE.

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