ABAP Select data from SAP table GRPC_S_UI_SCHEDULER_MAIN 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_UI_SCHEDULER_MAIN 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_UI_SCHEDULER_MAIN. 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_UI_SCHEDULER_MAIN 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_UI_SCHEDULER_MAIN TYPE STANDARD TABLE OF GRPC_S_UI_SCHEDULER_MAIN,
      WA_GRPC_S_UI_SCHEDULER_MAIN TYPE GRPC_S_UI_SCHEDULER_MAIN,
      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_UI_SCHEDULER_MAIN> TYPE GRPC_S_UI_SCHEDULER_MAIN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPC_S_UI_SCHEDULER_MAIN
*  INTO TABLE @DATA(IT_GRPC_S_UI_SCHEDULER_MAIN2).
*--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_UI_SCHEDULER_MAIN INDEX 1 INTO DATA(WA_GRPC_S_UI_SCHEDULER_MAIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPC_S_UI_SCHEDULER_MAIN>-MANDT = 1.
<GRPC_S_UI_SCHEDULER_MAIN>-JOBID = 1.
<GRPC_S_UI_SCHEDULER_MAIN>-BTC_JOBNAME = 1.
<GRPC_S_UI_SCHEDULER_MAIN>-FREQUENCY = 1.
<GRPC_S_UI_SCHEDULER_MAIN>-SCHEDULETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPC_S_UI_SCHEDULER_MAIN-SCHEDULEOPTION, sy-vline,
  WA_GRPC_S_UI_SCHEDULER_MAIN-JOBTYPE, sy-vline,
  WA_GRPC_S_UI_SCHEDULER_MAIN-STATUS, sy-vline,
  WA_GRPC_S_UI_SCHEDULER_MAIN-EXECUTION_DAY, sy-vline,
  WA_GRPC_S_UI_SCHEDULER_MAIN-EXECUTION_TIME, sy-vline,
  WA_GRPC_S_UI_SCHEDULER_MAIN-TIMEFRAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPC_S_UI_SCHEDULER_MAIN 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_UI_SCHEDULER_MAIN 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_UI_SCHEDULER_MAIN INTO WA_GRPC_S_UI_SCHEDULER_MAIN.


*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_UI_SCHEDULER_MAIN_STR, 
MANDT TYPE STRING,
JOBID TYPE STRING,
BTC_JOBNAME TYPE STRING,
FREQUENCY TYPE STRING,
SCHEDULETYPE TYPE STRING,
SCHEDULEOPTION TYPE STRING,
JOBTYPE TYPE STRING,
STATUS TYPE STRING,
EXECUTION_DAY TYPE STRING,
EXECUTION_TIME TYPE STRING,
TIMEFRAME TYPE STRING,
TF_YEAR TYPE STRING,
MONITORING TYPE STRING,
COMPLIANCE TYPE STRING,
DAY_BEFORE TYPE STRING,
DESIGN_CONNECTOR TYPE STRING,
DATE_BEGIN TYPE STRING,
DATE_END TYPE STRING,
IS_TEST TYPE STRING,
REGULATION_ID TYPE STRING,
CREATEDON TYPE STRING,
CREATETIME TYPE STRING,
CREATEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHANGETIME TYPE STRING,
CHANGEDBY TYPE STRING,
JOBCOMMENT TYPE STRING,
SCHEDULETYPE_TEXT TYPE STRING,
STATUSTEXT TYPE STRING,
JOB_STEP TYPE STRING,
CONNECTOR TYPE STRING,
BTC_JOBCOUNT TYPE STRING,
TESTLOG_ID TYPE STRING,
ORG_ID TYPE STRING,
RULE_ID TYPE STRING,
RULEID TYPE STRING,
CONTROL_ID TYPE STRING,
SYSTEMTYPE TYPE STRING,
EXEC_DATE TYPE STRING,
EXEC_TIME TYPE STRING,
SCRIPT TYPE STRING,
SCRIPTTYPE TYPE STRING,
SCRIPTVARIANT TYPE STRING,
UPDATEDON TYPE STRING,
DEFICIENCY TYPE STRING,
DEFICIENCY_TOTAL TYPE STRING,
DEST_JOBCOUNT TYPE STRING,
RETURN_CONNECTOR TYPE STRING,
DEST_STATUS TYPE STRING,
EXCEPTION_ID TYPE STRING,
ISSUE_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPC_S_UI_SCHEDULER_MAIN_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_UI_SCHEDULER_MAIN_STR-MANDT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-JOBID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-BTC_JOBNAME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-FREQUENCY sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCHEDULETYPE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCHEDULEOPTION sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-JOBTYPE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-STATUS sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-EXECUTION_DAY sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-EXECUTION_TIME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-TIMEFRAME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-TF_YEAR sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-MONITORING sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-COMPLIANCE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DAY_BEFORE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DESIGN_CONNECTOR sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DATE_BEGIN sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DATE_END sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-IS_TEST sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-REGULATION_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CREATEDON sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CREATETIME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CREATEDBY sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CHANGEDON sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CHANGETIME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CHANGEDBY sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-JOBCOMMENT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCHEDULETYPE_TEXT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-STATUSTEXT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-JOB_STEP sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CONNECTOR sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-BTC_JOBCOUNT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-TESTLOG_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-ORG_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-RULE_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-RULEID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-CONTROL_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SYSTEMTYPE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-EXEC_DATE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-EXEC_TIME sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCRIPT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCRIPTTYPE sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-SCRIPTVARIANT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-UPDATEDON sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DEFICIENCY sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DEFICIENCY_TOTAL sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DEST_JOBCOUNT sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-RETURN_CONNECTOR sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-DEST_STATUS sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-EXCEPTION_ID sy-vline 
WA_GRPC_S_UI_SCHEDULER_MAIN_STR-ISSUE_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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