SQL slow after upgrading to Oracle Database 10g Enterprise Edition Release

Hi all:
We have recently upgraded our database from Oracle9i Enterprise Edition Release 9.2.0.6.0 to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0
After that we found that our some sql getting very slow
for example query with 9i showing result in 4 seconds while in 10g showing result in 28 seconds.
Following is the execution plan of my query in Oracle9i
Operation     Object     PARTITION_START     PARTITION_STOP     COST
SELECT STATEMENT ()                    9458
NESTED LOOPS ()                    9458
SORT (UNIQUE)
   INDEX (RANGE SCAN)     BL_EQ_PK_N               2
VIEW ()     CONTAINER_INFO               2
   UNION-ALL (PARTITION)
    TABLE ACCESS (BY INDEX ROW     SERVICE_EVENTS               1
     NESTED LOOPS ()                    11
      NESTED LOOPS ()                    10
       NESTED LOOPS (OUTER)                    9
        NESTED LOOPS ()                    8
         NESTED LOOPS ()                    7
          NESTED LOOPS ()                    6
           NESTED LOOPS ()                    5
            NESTED LOOPS ()                    4
             NESTED LOOPS (OUT                    3
              TABLE ACCESS (BY     EQUIPMENT_USES               2
               INDEX (UNIQUE S     EQUSE_PK               1
              TABLE ACCESS (BY     SHIPPING_LINES               1
               INDEX (UNIQUE S     LINE_PK
             INDEX (UNIQUE SCA     EQHT_PK
            TABLE ACCESS (BY I     EQUIPMENT_TYPES               1
             INDEX (UNIQUE SCA     EQTP_PK
           TABLE ACCESS (BY IN     EQUIPMENT_SIZES               1
            INDEX (UNIQUE SCAN     EQSZ_PK
          TABLE ACCESS (BY IND     SHIP_VISITS               2
           INDEX (RANGE SCAN)     SVISIT_UK               1
         TABLE ACCESS (BY INDE     SHIPS               1
          INDEX (UNIQUE SCAN)     SHIP_PK
        TABLE ACCESS (BY INDEX     CARE_VIR_MAP               1
         INDEX (UNIQUE SCAN)     VIR_VESVOY
       TABLE ACCESS (BY INDEX      EQUIPMENT               1
        INDEX (RANGE SCAN)     EQ_EQUSE_FK
      INDEX (RANGE SCAN)     SEVENTS_EQUSE_FK_N
    NESTED LOOPS ()                    7
     NESTED LOOPS ()                    6
      NESTED LOOPS ()                    5
       NESTED LOOPS ()                    4
        NESTED LOOPS (OUTER)                    3
         TABLE ACCESS (BY INDE     EQUIPMENT_USES               2
          INDEX (UNIQUE SCAN)     EQUSE_PK               1
         TABLE ACCESS (BY INDE     SHIPPING_LINES               1
          INDEX (UNIQUE SCAN)     LINE_PK
        INDEX (UNIQUE SCAN)     EQHT_PK
       TABLE ACCESS (BY INDEX      EQUIPMENT_TYPES               1
        INDEX (UNIQUE SCAN)     EQTP_PK
      TABLE ACCESS (BY INDEX R     EQUIPMENT_SIZES               1
       INDEX (UNIQUE SCAN)     EQSZ_PK
     TABLE ACCESS (BY INDEX RO     EQUIPMENT               1
      INDEX (RANGE SCAN)     EQ_EQUSE_FK               and following is my query plan in Oracle 10g
Operation     Object     PARTITION_START     PARTITION_STOP     COST
SELECT STATEMENT ()                    2881202
NESTED LOOPS ()                    2881202
SORT (UNIQUE)                    2
   INDEX (RANGE SCAN)     BL_EQ_PK_N               2
VIEW ()     CONTAINER_INFO               2881199
   UNION-ALL ()
    NESTED LOOPS (OUTER)                    2763680
     NESTED LOOPS ()                    2718271
      NESTED LOOPS ()                    2694552
       NESTED LOOPS ()                    2623398
        NESTED LOOPS (OUTER)                    2623380
         NESTED LOOPS ()                    2393965
          NESTED LOOPS ()                    2393949
           NESTED LOOPS ()                    2164536
            NESTED LOOPS ()                    1706647
             NESTED LOOPS ()                    854120
              TABLE ACCESS (FU     BL_EQUIPMENT               1515
              TABLE ACCESS (BY     EQUIPMENT_USES               1
               INDEX (UNIQUE S     EQUSE_PK               1
             TABLE ACCESS (BY      EQUIPMENT               1
              INDEX (RANGE SCA     EQ_EQUSE_FK               1
            TABLE ACCESS (BY I     EQUIPMENT_TYPES               1
             INDEX (UNIQUE SCA     EQTP_PK               1
           TABLE ACCESS (BY IN     EQUIPMENT_SIZES               1
            INDEX (UNIQUE SCAN     EQSZ_PK               1
          INDEX (UNIQUE SCAN)     EQHT_PK               1
         TABLE ACCESS (BY INDE     SHIPPING_LINES               1
          INDEX (UNIQUE SCAN)     LINE_PK               1
        INDEX (RANGE SCAN)     SEVENTS_TSERV_FK_N               1
       TABLE ACCESS (BY INDEX      SHIP_VISITS               2
        INDEX (RANGE SCAN)     SVISIT_UK               2
      TABLE ACCESS (BY INDEX R     SHIPS               1
       INDEX (UNIQUE SCAN)     SHIP_PK               1
     TABLE ACCESS (BY INDEX RO     CARE_VIR_MAP               2
      INDEX (UNIQUE SCAN)     VIR_VESVOY               1
    NESTED LOOPS (OUTER)                    117519
     NESTED LOOPS ()                    98158
      NESTED LOOPS ()                    78798
       NESTED LOOPS ()                    78795
        NESTED LOOPS ()                    59432
         TABLE ACCESS (FULL)     EQUIPMENT_USES               20788
         TABLE ACCESS (BY INDE     EQUIPMENT_TYPES               1
          INDEX (UNIQUE SCAN)     EQTP_PK               1
        TABLE ACCESS (BY INDEX     EQUIPMENT               1
         INDEX (RANGE SCAN)     EQ_EQUSE_FK               1
       INDEX (UNIQUE SCAN)     EQHT_PK               1
      TABLE ACCESS (BY INDEX R     EQUIPMENT_SIZES               1
       INDEX (UNIQUE SCAN)     EQSZ_PK               1
     TABLE ACCESS (BY INDEX RO     SHIPPING_LINES               1
      INDEX (UNIQUE SCAN)     LINE_PK               1can somebody help me regarding this?
Thanks
Hassan

I would say ..gather stats on 9i/10gfor the required table and indexes , then post the expalin plan.
--Girish

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UTF support in XML DB at Oracle Database 10g Express Edition Beta 2

hello everybidy! ;)
I use Oracle Database 10g Express Edition Beta 2 Release for Microsoft Windows (dated 16-Nov-05) and place into XML DB XSLT-file (UTF8-encoded and contained some Cyrillic chars) and 10g XP can`t apply such transformation but when i replace cyrillic chars with latin chars - everything work just fine. Is it known bug? Can it be fixed by some reconfiguration or moving to Linux version of 10g XP? When will new release?
truly yours,
Slav
p.s. here some oracle forum testing ХАРЕ=XAPE, PAMA=РАМА :)

Hello, Bhagat.
I don't understand why you would install HTMLDB with apexins.sql (it's a procedure to install HTMLDB for 9i and 10G EE/SE not XE)
because HTMLDB (APEX) is already install with Oracle Express Edition. Not need
to install it with apexins.sql
Mike

Oracle Database 10g Express Edition Beta 2 Installation

Oracle Database 10g Express Edition Beta 2 Release for Microsoft Windows installation successful, no problems.

Hi Rekha,
The format mask 999G999G999G999G990D0000 is the format mask that I selected from the software itself. I also use this format mask for a single record update. If' s ok, no error, but with tabular form with multiple record update, it shows error .I also changed the decimal point to two digits ,select from software pop-up window (this was tested in the workspace provide by Oracle). It still shows error. Last test I put the space like 1 111,111.00 in a single record update it shows error (but if I put 1 in front of 111,111 without space it's ok-no space before). My point is from user point of view.In the first time user input 100000 the software accept it. Opp! it has to be 1100000. The user comes back after submit and put 1 without comma.It shows error (in tabular form with multiple record update not in single row update). While in the first time the user do not to key any comma at all. This may makes some confuses both the users and the developers which had to check error by adding program to checking some where in Page Processing or Page Rendering.
Thanks
Tritep

SQL slow after upgrading to Oracle Database 10g Enterprise Edition Release

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