Issue with materialized view and fast refresh between Oracle 10g and 11g

Hi all,
I've hit a problem when trying to create a fast-refreshable materialized view.
I've got two databases, one 10.2.0.10, another 11.2.0.1.0, running on 32-bit Windows. Both are enterprise edition, and I'm trying to pull data from the 10g one into the 11g one. I can happily query across the database link from 11g to 10g, and can use complete refresh with no problem except the time it takes.
On the 10g side, I've got tables with primary keys and m.v. logs created, the logs being of this form ...
CREATE MATERIALIZED VIEW LOG ON table WITH PRIMARY KEY INCLUDING NEW VALUES
On the 11g side, when I try to create an m.v. against that ...
CREATE MATERIALIZED VIEW mv_table REFRESH FAST WITH PRIMARY KEY AS SELECT col1, col2 FROM table@dblink;
... I get an ORA-12028 error (materialized view type is not supported by master site).
After running the EXPLAIN_MVIEW procedure it shows this;
REFRESH_FAST_AFTER_INSERT not supported for this type mv by Oracle version at master site
A colleague has managed to build a fast-refresh m.v. from the same source database, but pulling to a different one than I'm using; his target is also 10g, like the (common) source, so I've no idea why I'm getting the 'not supported' message whilst he isn't.
I've been able, on previous projects, to do exactly what I'm trying to achieve but on those someone with more knowledge than me has configured the database!
I'm now stumped. I'm also no DBA but despite that it's been left to me to install the new 11g database on the 32-bit Windows server from scratch, so there are probably a couple of things I'm missing. It's probably something really obvious but I don't really know where to look now.
If anyone can give me any pointers at all, I'd be really grateful. This question is also duplicated in the Replication forum but hasn't had any replies as yet, so I'm reproducing it here in hope!
Thanks in advance,
Steve

Hi Steve,
You should have a look at metalink, Doc ID 1059547.1
If that does not help, there may be something else in Mater note ID 1353040.1
Best regards
Peter

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now and here i stuck want to create a materialized view inside db1Why are you stuck? If you want to enforce a froeign key locally using data from a remote database then you need to build a materialized view on your local table tablespace that sucks data across from the remote database. You can then create a foreign key on your local table using the local MV.
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Refresh materialized view on fast refresh

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http://68.142.116.70/docs/cd/B19306_01/server.102/b14226/repmview.htm#sthref422

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Name Null? Type
LS_ID VARCHAR2(32)
BL_ID NOT NULL VARCHAR2(32) PRIMARY KEY1
FL_ID NOT NULL VARCHAR2(4) PRIMARY KEY2
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Try this way:
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NAME                                 TYPE        VALUE
job_queue_processes                  integer     0
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2 with rowid, primary key;
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2 tablespace jam_ts
3 refresh fast start with sysdate
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2 set     ename=lower(ename)
3 where   deptno=30;
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Commit complete.
---"After 15 seconds it will be refreshed automatically...."
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EMPNO ENAME      JOB           MGR HIREDATE      SAL    COMM DEPTNO
   7499 allen      SALESMAN     7698 20-FEB-81    1600     300      30
   7521 ward       SALESMAN     7698 22-FEB-81    1250     500      30
   7654 martin     SALESMAN     7698 28-SEP-81    1250    1400      30
   7698 blake      MANAGER      7839 01-MAY-81    2850              30
   7844 turner     SALESMAN     7698 08-SEP-81    1500       0      30
   7900 james      CLERK        7698 03-DEC-81     950              30
6 rows selected.Message was edited by:
Jameel

How does materialized view work when refresh the view vs create the view?

I am using a materialized view, and I cant set it to fast refresh because some of the tables are from remote database which does not have materialized view log.
When I create the materialized view, it took like 20 30 seconds. however when I was trying to refresh it. It took more than 2 3 hours. and total number of records are only around 460,000.
I understand that when the view refreshes, it would take extra step like purge the table however I am not sure why it made so much difference in execution time perspective...
Does the dbms_mview.refresh('MY_MATVIEW', 'C', atomic_refresh=>false) do the same exact insert as when I created the view?
Could anyone please let me know how would this happen? Thanks,
Code looks like as following
create materialized view MY_MV1
refresh force on demand
start with to_date('20-02-2013 22:00:00', 'dd-mm-yyyy hh24:mi:ss') next trunc(sysdate)+1+22/24
as
( SELECT Nvl(Cr.Sol_Chng_Num, ' ') AS Change_Request_Nbr,
       Nvl(Sr.Sr_Num, ' ') AS Service_Request_Nbr,
       Nvl(Sr.w_Org_Id, 0) AS Org_Id,
       Fcr.rowid,
       Cr.rowid,
       Bsr.rowid,
       Sr.rowid,
       SYSDATE
FROM [email protected] Fcr
INNER JOIN [email protected] Cr
    ON Fcr.w_Sol_Chng_Id = Cr.w_Sol_Chng_Id
INNER JOIN [email protected] Bsr
    ON Fcr.w_Sol_Chng_Id = Bsr.w_Sol_Chng_Id
INNER JOIN [email protected] Sr
    ON Sr.w_Srv_Rec_Id = Bsr.w_Srv_Rec_Id
WHERE Sr.Sr_Num !='NS'
);I have tried to use dbms_mview.refresh('MY_MATVIEW', 'C', atomic_refresh=>false) but it still took 141 mins to run... vs 159 mins without atomic_refresh=>false
Edited by: 986006 on Feb 20, 2013 2:15 PM

Welcome to the forum!
Whenever you post provide your 4 digit Oracle version (result of SELECT * FROM V$VERSION)
>
I am using a materialized view, and I cant set it to fast refresh because some of the tables are from remote database which does not have materialized view log.
When I create the materialized view, it took like 20 30 seconds. however when I was trying to refresh it. It took more than 2 3 hours. and total number of records are only around 460,000.
I understand that when the view refreshes, it would take extra step like purge the table however I am not sure why it made so much difference in execution time perspective...
Does the dbms_mview.refresh('MY_MATVIEW', 'C', atomic_refresh=>false) do the same exact insert as when I created the view?
>
What Oracle version are you using? The 'atomic_refresh' parameter default was changed to TRUE starting with 10g.
See the PL/SQL Packages and Types doc
>
atomic_refresh
If this parameter is set to true, then the list of materialized views is refreshed in a single transaction. All of the refreshed materialized views are updated to a single point in time. If the refresh fails for any of the materialized views, none of the materialized views are updated.
If this parameter is set to false, then each of the materialized views is refreshed in a separate transaction.
>
What that means is that if the value is TRUE Oracle uses a DELETE to remove the existing rows. If the value is FALSE then Oracle uses TRUNCATE.
If you really are using the FALSE setting you should not be seeing that much of a time difference between creating the MV and a complete refresh so something else must be going on.

Materialized View and AND/OR

I am really in need of some help as I am having trouble refreshing this materialized view. Basically the code below if triggered by executing the SQL manually will pull the correct records which is somewhere in the 970 unique record range.
Having known that the SQL worked we created a materialized view that would refresh every day at 3 AM so that we could send this file to an external vendor. However the materialized view that references this SQL when it refreshes pulls in some 100,000 unique records incorrectly.
After testing over and over I have identified that the refresh seems to be bypassing the "AND/OR" statment that I have setup to look at:
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MSP_BORROWER_D.MORTGAGOR_EXPANDED_FIRST_NAME,
MSP_BORROWER_D.MORTGAGOR_EXPANDED_MIDDLE_NAME, MSP_BORROWER_D.MORTGAGOR_EXPANDED_LAST_NAME,
MSP_BORROWER_D.CO_MRTGR_EXPANDED_FIRST_NAME, MSP_BORROWER_D.CO_MRTGR_EXPANDED_MIDDLE_NAME,
MSP_BORROWER_D.CO_MRTGR_EXPANDED_LAST_NAME,
MSP_BORROWER_D.BILLING_ADDRESS_LINE_4, MSP_BORROWER_D.BILLING_CITY_NAME,
MSP_BORROWER_D.BILLING_STATE, MSP_BORROWER_D.BILLING_ZIP_CODE, MSP_PROPERTY_D.PROPERTY_STREET_ADDRESS, MSP_PROPERTY_D.CITY_NAME,
MSP_PROPERTY_D.PROPERTY_ALPHA_STATE_CODE, MSP_PROPERTY_D.PROPERTY_ZIP_CODE, msp_loan_d.next_payment_due_date,
CO.ADL_CO_BORR_UNFORMATTED_NAME_1 AS "ADDITIONAL COBORROWER",
CO.ADL_CO_BORR_STREET, CO.ADL_CO_BORR_CITY, CO.ADL_CO_BORR_STATE, CO.ADL_CO_BORR_ZIP_CODE,
MSP_LOAN_D.Investor_ID, msp_loan_d.first_principal_balance, msp_loan_d.last_full_payment_date, MSP_ORIGINAL_LOAN_D.ORIGINAL_MORTGAGE_AMOUNT,
MSP_LOAN_D.TOTAL_MONTHLY_PAYMENT, MSP_DELINQUENCY_D.DELINQUENT_PAYMENT_COUNT, MSP_DELINQUENCY_D.DELINQUENT_PAYMENT_BALANCE,
MSP_LOAN_D.ACCRUED_LATE_CHARGE_AMOUNT, MSP_LOAN_D.NSF_FEE_BALANCE, MSP_CORPORATE_ACCOUNTING_D.RECOVER_CORP_ADVANCE_BALANCE,
MSP_LOAN_D.SUSPENSE_BALANCE, MSP_ORIGINAL_LOAN_D.NOTE_DATE As "ORIGINATION DATE", MSP_LOAN_D.LOAN_TERM AS "LOAN TERM",
add_months(msp_loan_d.next_payment_due_date,-1) AS "DUE DATE OF LAST PAYMENT", MSP_USER_DEFINED_D.USER_20_POSITION_FIELD_2A AS "ORIGINATOR",
NJCLERK.payee_address_line_1, NJCLERK.payee_address_line_2, NJCLERK.payee_address_line_3,
NJCLERK.payee_address_line_4, NJCLERK.payee_address_zip_code
FROM me589mgr.msp_loan_d@infodb,
me589mgr.msp_property_d@infodb,
me589mgr.msp_user_defined_d@infodb,
me589mgr.msp_borrower_d@infodb,
ME589MGR.MSP_ORIGINAL_LOAN_D@infodb,
ME589MGR.MSP_DELINQUENCY_D@infodb,
ME589MGR.MSP_CORPORATE_ACCOUNTING_D@infodb,
(SELECT DISTINCT LOAN_NUMBER, Hi_TYPE, LO_TYPE
FROM ME589MGR.MSP_LOAN_D@infodb
WHERE HI_TYPE = 3
AND LO_TYPE = 8) UNSECURED,
(SELECT DISTINCT msp_bankruptcy_d.loan_number
From ME589MGR.MSP_BANKRUPTCY_D@infodb
Where BKR_STATUS_CODE = 'A') BKLOAN,
(SELECT DISTINCT MSP_ADDITIONAL_CO_BORROWER_D.LOAN_NUMBER,
ADL_CO_BORR_UNFORMATTED_NAME_1, ADL_CO_BORR_STREET, ADL_CO_BORR_CITY,
ADL_CO_BORR_STATE, ADL_CO_BORR_ZIP_CODE
FROM ME589MGR.MSP_ADDITIONAL_CO_BORROWER_D@infodb
WHERE ADL_CO_BORR_THIRD_PARTY_FLAG = 'N'
AND ADL_CO_BORR_SEQUENCE = '1') CO,
(SELECT
msp_tax_d.loan_number,
msp_payee_d.payee_address_line_1, msp_payee_d.payee_address_line_2,
msp_payee_d.payee_address_line_3, msp_payee_d.payee_address_line_4,
msp_payee_d.payee_address_zip_code,
ROW_NUMBER() OVER (PARTITION BY msp_tax_d.loan_number ORDER BY msp_tax_d.tax_key_sequence_number DESC) AS ROW_ORDER
FROM me589mgr.msp_tax_d@infodb,
me589mgr.msp_payee_d@infodb,
me589mgr.msp_property_d@infodb
WHERE msp_tax_d.tax_key_sequence_number = 1
AND msp_tax_d.tax_payee_code = msp_payee_d.payee_id
AND msp_property_d.property_alpha_state_code = 'NJ'
AND msp_tax_d.loan_number = msp_property_d.loan_number) NJCLERK
WHERE ( msp_loan_d.loan_number = UNSECURED.LOAN_NUMBER (+)
AND UNSECURED.LOAN_NUMBER IS NULL
AND msp_loan_d.loan_number = BKLOAN.LOAN_NUMBER (+)
AND BKLOAN.LOAN_NUMBER IS NULL
AND msp_loan_d.loan_number = MSP_ORIGINAL_LOAN_D.LOAN_NUMBER (+)
AND msp_loan_d.loan_number = MSP_DELINQUENCY_D.LOAN_NUMBER (+)
AND msp_loan_d.loan_number = MSP_CORPORATE_ACCOUNTING_D.LOAN_NUMBER (+)
AND msp_loan_d.loan_number = msp_user_defined_d.loan_number (+)
AND msp_loan_d.loan_number = msp_property_d.loan_number (+)
AND msp_loan_d.loan_number = msp_borrower_d.loan_number (+)
AND msp_loan_d.loan_number = CO.LOAN_NUMBER (+))
AND ((CURRENT_DATE - msp_loan_d.next_payment_due_date) >= 58 AND msp_property_d.property_alpha_state_code <> 'NC'
OR ((CURRENT_DATE - msp_loan_d.next_payment_due_date) >= 45 AND msp_property_d.property_alpha_state_code = 'NC'))
AND (msp_loan_d.first_principal_balance > 0
AND msp_loan_d.man_code NOT IN ('U' , 'D', 'Y' ,'B', 'F', 'L', 'G', 'I','M', 'O', 'R', 'X', 'Y', 'W', 'T', 'Q', 'Z')
AND msp_property_d.property_alpha_state_code NOT IN ('WA','NM','MA','MD','NY','PA')
AND msp_loan_d.loan_number = NJCLERK.LOAN_NUMBER (+)
AND msp_loan_d.PROCESS_STOP_CODE NOT IN ('1', '2', '8', 'A', 'B', 'C', 'D', 'E', 'F', 'H', 'J', 'R', '9', 'K', 'O', 'U', 'V', 'X'))
AND (msp_loan_d.last_full_payment_date >= TO_DATE (msp_user_defined_d.user_07_position_field_1a, 'MMDDYY')
OR (msp_user_defined_d.user_07_position_field_1a IS NULL))

Hi,
I don't think AND/OR has anything to do with your problem. The issue seems to be how to write outer joins.
You have an outer join to msp_user_defined_d:
AND msp_loan_d.loan_number = msp_user_defined_d.loan_number(+)But here you have an inner join to same table:
AND (     msp_loan_d.last_full_payment_date >= TO_DATE (msp_user_defined_d.user_07_position_field_1a, 'MMDDYY')
       OR (msp_user_defined_d.user_07_position_field_1a IS NULL)
    )It looks like you need to change this into:
(If you hit ORA-01719: outer join operator {noformat}(+){noformat} not allowed in operand of OR or IN , you may have to rewrite accordingly)
AND (     msp_loan_d.last_full_payment_date >= TO_DATE (msp_user_defined_d.user_07_position_field_1a(+), 'MMDDYY')
       OR (msp_user_defined_d.user_07_position_field_1a IS NULL)
    )If true, it makes me wonder. Did you test your query alone, did it produce the correct resultset?
Regards
Peter

Materialized view not properly refreshing

Hi,
As materialized view is not refreshing properly. we compare the sum of hashcode materialized view with the sum of hash code of the base view or table the materialized view is defined. If it's found equal then materialized view got refreshed succesfully else not.
But in below example the column value is interchanged in between the row eventhough hashcode is same.
Is there any other way to find the materialized view got refreshed successfully or not.
SQL> create table temp as select object_name, subobject_name from user_objects where rownum<3;
Table created
SQL> select * from temp;
OBJECT_NAME SUBOBJECT_NAME
ATP_BN_I_1
ATP_START_END_DATE_I_2
SQL> create materialized view mv1 as select * from temp;
Materialized view created
SQL> select * from mv1;
OBJECT_NAME SUBOBJECT_NAME
ATP_BN_I_1
ATP_START_END_DATE_I_2
SQL> select sum(nvl(ora_hash("OBJECT_NAME"||"SUBOBJECT_NAME"),0)) from temp;
SUM(NVL(ORA_HASH("OBJECT_NAME"
4852176374
SQL> select sum(nvl(ora_hash("OBJECT_NAME"||"SUBOBJECT_NAME"),0)) from MV1;
SUM(NVL(ORA_HASH("OBJECT_NAME"
4852176374
SQL> UPDATE TEMP SET OBJECT_NAME=SUBOBJECT_NAME,SUBOBJECT_NAME=OBJECT_NAME;
2 rows updated
SQL> COMMIT;
Commit complete
SQL> select * from mv1;
OBJECT_NAME SUBOBJECT_NAME
ATP_BN_I_1
ATP_START_END_DATE_I_2
SQL> select * from temp;
OBJECT_NAME SUBOBJECT_NAME
ATP_BN_I_1
ATP_START_END_DATE_I_2
SQL> select sum(nvl(ora_hash("OBJECT_NAME"||"SUBOBJECT_NAME"),0)) from MV1;
SUM(NVL(ORA_HASH("OBJECT_NAME"
4852176374
SQL> select sum(nvl(ora_hash("object_name"||"subobject_name"),0)) from temp;
select sum(nvl(ora_hash("object_name"||"subobject_name"),0)) from temp
ORA-00904: "subobject_name": invalid identifier
SQL> select sum(nvl(ora_hash("OBJECT_NAME"||"SUBOBJECT_NAME"),0)) from temp;
SUM(NVL(ORA_HASH("OBJECT_NAME"
4852176374
Any help really appreciated.
Thanks in advance.

unique wrote:
Is there any other way to find the materialized view got refreshed successfully or not.You can look at the last_refresh_date and staleness columns of all_mviews: http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_1105.htm#REFRN20139
Or maybe use the all_mview_refresh_times view: http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_1104.htm#sthref1068
Regards,
Rob.

Performace issue on MATERIALIZED view

Hi Gurus,
Need help to understand perfoamance issue on MATERIALIZED view. I have created mat view on some big table of 76GB. Mat view is of 25 GB.
I have refreshed mat view before running report. In OEM it ish showng going for full table scan and estimated time is of 2 hrs where full tablescan on base table on which mat view is created is of 20 Mins . I am using fast refresh on demand .
We are using Oracle 10.2.0.4 on Sun Sprac 64bit 10 platform and version.
Could you please let me know what could be the reason why mat views are performing poor ?
Thanks & Regards

You have MLOG created on your master table, right?
OK, then check DBA_MVIEWS. Look for LAST_REFRESH_TYPE, If everything is OK, i should be FAST.
If everything is OK by now, the problem can be the nature of master table. If there is great amount of changes in master table, set periodic job which will do refresh often (since 'often' is fuzzy word, it can be every 5, 10, 30 minutes...). Incremental refresh will perform beter if there is small amount of changes in MLOG table!
You can check your MLOG table. If it is huge (size in MB) and there is only few records in it, try to realocate the space issuing "ALTER TABLE MLOG$_table_name;"
Hope something will be helpfull...
Best regards

Issues with Exchange Account and Q10

Well, I hate to be writing this, but I'm hoping that there might be someone out there that can help get past some first day issues I am experiencing.
The background: I have a long history with legacy BlackBerry devices, and almost as much history with iOS devices. My most recent phone was an iPhone 4S, and I make extensive use of iCloud to keep my iMacs, iPhone, and iPad connected in real-time. The setup worked. It wasn't perfect, but it worked. However, because I used to have a BlackBerry device (most recent the 9930) and because I don't use the iPhone for more than e-mail, iMessage, and phone calls (generally speaking), I decided to give the newest BlackBerry device a shot. So I bought a Q10.
At this point I feel compelled to say that the hardware is everything I had hoped it to be. It's solid, has a good weight, and appears to be made very well. I have no complaints with the hardware, including the keyboard (a big selling factor for me), so I won't really get into the hardware as the issues I am experiencing all have to do with the OS. Let me also say that I am very familiar with the iCloud integration issues (missing Contact photos and disabled Calendar sync), so I'm not voicing a complaint over those issues in this thread.
I have connected my Exchange account. I used to have everything in Exchange before I moved my entire computing world over to Apple, and now I keep Exchange around for e-mail. Therefore, I have no contacts, no tasks, no notes, very limited calendar entries, and a massive amount of e-mail on the Exchange server. However, to test everything out, I have added a single contact record so I can see it show up on the phone and be able to test two-way sync between the Q10 and Exchange. And here is where the first issues crop up. It looks like Exchange connects and then disconnects at random. For example, if I open my Contacts on the phone, I see the one contact (called John Doe). Then, as the phone is sitting there with the screen on, the contact will disappear and I will see a "Start adding contact to your contact list" notice on the screen. Then, after a short period of time, the single contact will return. It is important to note that the entire time this is happening, the All Contacts option is selected in the list so that all available contacts are shown. Additionally, I have SIM card contacts turned off, but if I alter the selection in the view list (All Contacts, Favorites, etc.), the SIM contacts will re-appear when I return to the All Contacts view. At the same time, even though I have turned off SIM Contacts in the settings, the setting has reverted to show SIM Contacts. If I turn off the setting again, SIM Contacts still show up. Possibly related: I can't delete contacts on the SIM card, no matter how many times I try, and it now it seems that I can't get SIM Contacts to go away in the Contacts app.
Likewise, Exchange seems to connect and disconnect from Calendar. I go to the calendar and move day by day to June 15th. I see an entry that I know is from Exchange (I have no other connected calendars at this time), and it is in blue. I change the calendar color to green and the entry changes color, as expected. However, if I jump back to today and then scroll day by day to get to June 15th again, the calendar entry is missing. After a few seconds, the entry re-appears, but it is, once again, in blue. The setting has reverted itself, and it seems like Exchange is completely disconnecting and automatically reconnecting to the phone like I am setting it up again for the first time. Very odd. As I'm typing this, I just saw something odd. I swiped to wake up the phone, and the active frames screen was the visible screen. The calendar app is still running (since I left it running, minimized, when the phone went to sleep) and the date shown in the active card was Jan 1, not Jun 8. Why? The date (and time) on the phone is correct and is set automatically by the cellular system.
Nevertheless, looking at BlackBerry Hub, I see only two e-mails in my Inbox from Exchange, even though I have roughly a dozen in my Inbox. The rest are filed in sub-folders. And bam! Just like that... I get the "Add Accounts" screen while looking at the Hub. In other words, as I was typing this, I first saw two Exchange e-mails and then, out of nowhere, the e-mails disappear and I see the "Add Accounts" screen as if no account has been connected.
So... first question: Is anyone else experiencing this issue? This is very strange, and very frustrating. Second: could this be related to the large amount of e-mails I have stored on Exchange, some of which have large attachments? I selected "Forever" as the sync history length. I have my concerns, however, if this is related to loading historical e-mails onto the phone (in other words, the first sync with Exchange) because there is no reason that I can understand that the phone would blank out as if no account was connected at all. I can understand lag and stuttering while the history is syncing, but not a complete disconnect and reconnect. Considering all of the issues with the one and only contact record disappearing, the calendar entry for Jun 15th disappearing and then reappearing with the wrong calendar color, and e-mail in my Inbox incomplete (two of a dozen e-mails) and ultimately disappearing, I feel like this OS just has some real, significant issues.
Full disclosure: I do want iCloud to work and am a fan of Apple products, but the lack of full iCloud sync support is not a big enough issue for me to want to send back this phone and/or see it fail so miserably. I will happily move my info from iCloud into Exchange, Google, and/or set up a new Exchange account for personal use (Office 365) because I am not wedded to iCloud per se. But, I won't go through that trouble if I can't even get my first account to work properly. It should also be noted that I do have a basic Google account (non-paid) and I had previously attempted to connect to it. However, I was experiencing the exact same issues with contacts disappearing, e-mail disappearing, etc. So I deleted that account. Truth be told, I deleted the Exchange account as well, and then re-connected to Exchange only to test one account at a time. Unfortunately, even with Exchange only, I am seeing very strange and frustrating behavior as described above.
Help... please. I want this to work but the frustration I am feeling is growing worse by the hour.
Model: SQN100-2
OS Release: 10.1.0.2011
OS Version: 10.1.0.2038
Build ID: 525050
Ian

To follow-up with this issue:
I ended up performing a security wipe on my device. The security wipe finished, and I was about to reconnect with Exchange when I decided to visit our host's web site to see if they had any articles covering the issues I was experiencing. While they didn't have anything specific, I did find a step-by-step guide to connecting a BB10 device to Exchange... and right there at the end, it said "Do NOT enable memo sync."
I contacted support, and the rep told me that OS 10 has an issue with memo sync and it can cause all sorts of unpredictable behavior. Now, whether or not this is accurate I can say this: So far, the device is not disconnecting and reconnecting like it was before. Problem is, is this a result of not enabling memo sync, or is this a result of the security wipe?
I may have overlooked it, but I don't recall reading anything about that anywhere else. I'm tempted to try re-enabling the memo sync to see if everything blows up again. At least that way I can see for myself if the memo sync is a real issue. Of course, perhaps it's an issue with SherWeb (our host) specifically. Hm...
Anyway, for those that were interested, and for those that may come along in the future with a similar situation, the strange behavior that I first reported is no longer happening. I just don't know if it was a result of a security wipe or a result of not enabling memo sync with Exchange.
Ian

Issue with materialized view and fast refresh between Oracle 10g and 11g

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