Back Ground Job Issue

Hi,
My report program was executing successfully in the Foreground but not in the back ground.. Can any one help me on this?
My report program has a selection screen..I entered the data for it at and through menu option Program->execute in background..I executed it..As it asked for output device i gave LP01 and No of copies to 1. and checked Radio button Print all. and clicked ok.
It asked me for start time and i selected Immediate and clicked on save.
It gave a status message "Back ground Job Scheduled".
Now when i look through SM37 under my name the job is always active and Never finished.
Can any one help me on this?
Thank in advance..

Just check whether the job is running in the background or not
Double Click on the job name and take the Server & Process Id.
Go back to the SM37 Screen.
Click on Application Servers or directly Open the transaction SM51.
Select the Server and find the process Id with the help of the things you found already
Now, you can see the database level.
Check if the values or moving or not. This way you could track the details
If not, Ask BASIS guys to check whether the job is reading from rollback or not.
If it is, cancel and rerun the job...or else..leave the job..it will finish off in some time.
Hope everything is clear

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    2.     Select Statements
    •     Select Queries
    •     SQL Interface
    •     Aggregate Functions
    •     For all Entries
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    Points # 1/2
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    Select Statements   Select Queries
    1.     Avoid nested selects
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    Point # 1
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    Point # 2
    SELECT * FROM SBOOK INTO SBOOK_WA.
      CHECK: SBOOK_WA-CARRID = 'LH' AND
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      WHERE SBOOK_WA-CARRID = 'LH' AND
                  SBOOK_WA-CONNID = '0400'.
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      WHERE CARRID = 'LH'.
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        AND CONNID = '0400'.
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    •     If you want to find the maximum, minimum, sum and average value or the count of a database column, use a select list with aggregate functions instead of computing the aggregates yourself.
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    Select max( fligh ) from zflight into maxno where airln = ‘LF’ and cntry = ‘IN’.
    Select Statements    contd…For All Entries
    •     The for all entries creates a where clause, where all the entries in the driver table are combined with OR. If the number of entries in the driver table is larger than rsdb/max_blocking_factor, several similar SQL statements are executed to limit the length of the WHERE clause.
         The plus
    •     Large amount of data
    •     Mixing processing and reading of data
    •     Fast internal reprocessing of data
    •     Fast
         The Minus
    •     Difficult to program/understand
    •     Memory could be critical (use FREE or PACKAGE size)
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    •     Check that data is present in the driver table
    •     Sorting the driver table
    •     Removing duplicates from the driver table
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    Sort int_cntry by cntry.
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    2.     To read data from several logically connected tables use a join instead of nested Select statements. Joins are preferred only if all the primary key are available in WHERE clause for the tables that are joined. If the primary keys are not provided in join the Joining of tables itself takes time.
    3.     Instead of using nested Select loops it is often better to use subqueries.
    Point # 1
    SELECT * FROM DD01L INTO DD01L_WA
      WHERE DOMNAME LIKE 'CHAR%'
            AND AS4LOCAL = 'A'.
      SELECT SINGLE * FROM DD01T INTO DD01T_WA
        WHERE   DOMNAME    = DD01L_WA-DOMNAME
            AND AS4LOCAL   = 'A'
            AND AS4VERS    = DD01L_WA-AS4VERS
            AND DDLANGUAGE = SY-LANGU.
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    SELECT * FROM DD01V INTO  DD01V_WA
      WHERE DOMNAME LIKE 'CHAR%'
            AND DDLANGUAGE = SY-LANGU.
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    Point # 2
    SELECT * FROM EKKO INTO EKKO_WA.
      SELECT * FROM EKAN INTO EKAN_WA
          WHERE EBELN = EKKO_WA-EBELN.
      ENDSELECT.
    ENDSELECT.
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    SELECT PF1 PF2 FF3 FF4 INTO TABLE ITAB
        FROM EKKO AS P INNER JOIN EKAN AS F
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      WHERE CITYFROM = 'FRANKFURT'
        AND CITYTO = 'NEW YORK'.
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        FOR ALL ENTRIES IN T_SPFLI
        WHERE SEATSOCC < F~SEATSMAX
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    READ TABLE ITAB INTO WA WITH KEY (NAME) = 'X'.
    Point # 5
    LOOP AT ITAB INTO WA WHERE K = 'X'.
    ENDLOOP.
    The above code is much faster than using
    LOOP AT ITAB INTO WA.
      CHECK WA-K = 'X'.
    ENDLOOP.
    Point # 6
    WA-DATE = SY-DATUM.
    MODIFY ITAB FROM WA INDEX 1 TRANSPORTING DATE.
    The above code is more optimized as compared to
    WA-DATE = SY-DATUM.
    MODIFY ITAB FROM WA INDEX 1.
    7.     Accessing the table entries directly in a "LOOP ... ASSIGNING ..." accelerates the task of updating a set of lines of an internal table considerably
    8.    If collect semantics is required, it is always better to use to COLLECT rather than READ BINARY and then ADD.
    9.    "APPEND LINES OF itab1 TO itab2" accelerates the task of appending a table to another table considerably as compared to “ LOOP-APPEND-ENDLOOP.”
    10.   “DELETE ADJACENT DUPLICATES“ accelerates the task of deleting duplicate entries considerably as compared to “ READ-LOOP-DELETE-ENDLOOP”.
    11.   "DELETE itab FROM ... TO ..." accelerates the task of deleting a sequence of lines considerably as compared to “  DO -DELETE-ENDDO”.
    Point # 7
    Modifying selected components only makes the program faster as compared to Modifying all lines completely.
    e.g,
    LOOP AT ITAB ASSIGNING <WA>.
      I = SY-TABIX MOD 2.
      IF I = 0.
        <WA>-FLAG = 'X'.
      ENDIF.
    ENDLOOP.
    The above code works faster as compared to
    LOOP AT ITAB INTO WA.
      I = SY-TABIX MOD 2.
      IF I = 0.
        WA-FLAG = 'X'.
        MODIFY ITAB FROM WA.
      ENDIF.
    ENDLOOP.
    Point # 8
    LOOP AT ITAB1 INTO WA1.
      READ TABLE ITAB2 INTO WA2 WITH KEY K = WA1-K BINARY SEARCH.
      IF SY-SUBRC = 0.
        ADD: WA1-VAL1 TO WA2-VAL1,
             WA1-VAL2 TO WA2-VAL2.
        MODIFY ITAB2 FROM WA2 INDEX SY-TABIX TRANSPORTING VAL1 VAL2.
      ELSE.
        INSERT WA1 INTO ITAB2 INDEX SY-TABIX.
      ENDIF.
    ENDLOOP.
    The above code uses BINARY SEARCH for collect semantics. READ BINARY runs in O( log2(n) ) time. The above piece of code can be more optimized by
    LOOP AT ITAB1 INTO WA.
      COLLECT WA INTO ITAB2.
    ENDLOOP.
    SORT ITAB2 BY K.
    COLLECT, however, uses a hash algorithm and is therefore independent
    of the number of entries (i.e. O(1)) .
    Point # 9
    APPEND LINES OF ITAB1 TO ITAB2.
    This is more optimized as compared to
    LOOP AT ITAB1 INTO WA.
      APPEND WA TO ITAB2.
    ENDLOOP.
    Point # 10
    DELETE ADJACENT DUPLICATES FROM ITAB COMPARING K.
    This is much more optimized as compared to
    READ TABLE ITAB INDEX 1 INTO PREV_LINE.
    LOOP AT ITAB FROM 2 INTO WA.
      IF WA = PREV_LINE.
        DELETE ITAB.
      ELSE.
        PREV_LINE = WA.
      ENDIF.
    ENDLOOP.
    Point # 11
    DELETE ITAB FROM 450 TO 550.
    This is much more optimized as compared to
    DO 101 TIMES.
      DELETE ITAB INDEX 450.
    ENDDO.
    12.   Copying internal tables by using “ITAB2[ ] = ITAB1[ ]” as compared to “LOOP-APPEND-ENDLOOP”.
    13.   Specify the sort key as restrictively as possible to run the program faster.
    Point # 12
    ITAB2[] = ITAB1[].
    This is much more optimized as compared to
    REFRESH ITAB2.
    LOOP AT ITAB1 INTO WA.
      APPEND WA TO ITAB2.
    ENDLOOP.
    Point # 13
    “SORT ITAB BY K.” makes the program runs faster as compared to “SORT ITAB.”
    Internal Tables         contd…
    Hashed and Sorted tables
    1.     For single read access hashed tables are more optimized as compared to sorted tables.
    2.      For partial sequential access sorted tables are more optimized as compared to hashed tables
    Hashed And Sorted Tables
    Point # 1
    Consider the following example where HTAB is a hashed table and STAB is a sorted table
    DO 250 TIMES.
      N = 4 * SY-INDEX.
      READ TABLE HTAB INTO WA WITH TABLE KEY K = N.
      IF SY-SUBRC = 0.
      ENDIF.
    ENDDO.
    This runs faster for single read access as compared to the following same code for sorted table
    DO 250 TIMES.
      N = 4 * SY-INDEX.
      READ TABLE STAB INTO WA WITH TABLE KEY K = N.
      IF SY-SUBRC = 0.
      ENDIF.
    ENDDO.
    Point # 2
    Similarly for Partial Sequential access the STAB runs faster as compared to HTAB
    LOOP AT STAB INTO WA WHERE K = SUBKEY.
    ENDLOOP.
    This runs faster as compared to
    LOOP AT HTAB INTO WA WHERE K = SUBKEY.
    ENDLOOP.

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