Performance before and after
I would like to run the following command to increase efficieny of the database. However I would like to know how to determine if these commands really make a difference to database performance.
analyse schema
dbms...gather index statistics
table
Is there a way that IO could test whether the before performance and that after perfomance ...has incresed ..or made no difffference at all.
Thanks
If you just have massive updates on your tables or you never collected statistics, that will make some differences on query performance. However, if you have current statistics of your tables and indexes and there's no much changes to the data, recollect won't make any difference to performance.
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How to validate performance before and after turn on Trace Flag 2371
Hi Friends
I have 5 TB DB for AX.
What homework I am supposed to follow to collect some evidence of performance improvement after I turn on -T2371
Regards,
AnjanOnce you have
turned on the traces, you’re probably going to want to determine whether the trace is actually running. To do this, you can issue the
DBCC TRACESTATUS command. One method to issue the command is to interrogate whether a given trace is running:
DBCC TRACESTATUS (3604)
If you want to see all traces that apply to the connection, run the command with the -1 parameter:
DBCC TRACESTATUS (-1)
DBCC execution completed. If DBCC printed error messages, contact your system administrator. Your instance of SQL Server
should not have trace flags turned on indefinitely, unless you have been instructed by Microsoft Product Support to do so.
I hope this might help you a bit. -
Everyone: This time repair your permissions before and after 10.4.8 update
Hello All,
Just a reminder for all those who are updating to OS 10.4.8.
While many people do ignore all the recommendations that we provide and still come through fine, please do consider observing the following to minimize your problems.
To insure the best chance of success, please consider downloading the Combo Updater for your computer instead of using Software update.
For PowerPC Mac's, this would be:
http://www.apple.com/support/downloads/macosx1048comboupdateppc.html
For Intel Macs, this would be:
http://www.apple.com/support/downloads/macosx1048comboupdateintel.html
The benefit of using the Combo Updater, is that it replaces all system files that have been changed since the last major release (in this case since 10.4.0).
So, if you have any system files that have become corrupted, the Combo Updater will very likely over-write those, and spare you the headaches that come from updating an operating system that has problems that just haven't come to the surface yet.
In many cases, you can have problems that have not come to the surface, and the "Delta" or Software update method will bring them out to bite you. The reason for this, is because the Delta / Software Update version only changes files that have changed since 10.4.7. And, it works more in a "patch" fashion. So, if there is a problem in one of the files being patched, then the update will cause you some major headaches.
Going with the larger "Combo" update over-writes almost all the System files with clean versions instead of just making patches. So, it is frequently much more successful.
Now, with that said, before you update, you should make sure your permissions are all set properly. If your permissions are wrong, then your update will likely have trouble.
So, go into "Disk Utility" in the Applications --> Utilities folder and repair your permissions.
Start by selecting your hard drive on the left window of Disk Utility. Then, go down and click on the "Repair Permissions" button. Once it's completed, then exit Disk Utility.
Now, it is also extremely important to make sure all running programs are closed before you install any system update. So, go ahead and restart your computer.
Restarting will make sure that all programs are closed, and that nothing weird is stuck in memory before you install.
If you have anti-virus programs running, then disable or deactivate them first (you don't want them interpreting this as unauthorized modification or it might prevent certain files from being updated).
Now, with your computer freshly restarted, install the Combo updater you downloaded.
When prompted, click on the "Restart" button when prompted.
Now, the computer will startup, but sit at the spinning wheel for several minutes. It will eventually restart again on it's own. And, finally, it will start-up all the way and you'll be back at your desktop.
Now, immediately go back to Disk Utility and repair permissions as you did in the previous step. You will likely see several permissions that have been repaired. In my case, I had dozens of CoreAudio, Widgets, and other permissions that needed repair. Once permissions have been repaired, go ahead and restart one last time. This makes sure that everything is set and then cleaned-up.
Once it reboots, begin using it and enjoy.
Now, this may sound like a lot. But, it really is simple. It just reads like a lot of stuff.
And, of course, you are free to ignore this and just install it however you like. Many people have their own ideas here. And, many people say you don't have to do anything to prepare. But, for those that have had huge problems in the past, these extra steps will usually save you the major headaches that tons of people inevitably have with every new update.
Anyway, I hope this helps to save at least a few of you any problems. If you don't agree with the ideas above, just ignore it and do as you like.
But, if you want a little extra piece-of-mind and a better chance at success, then please consider exercising this extra caution.
And, for the record, I have updated my machines to 10.4.8 (within minutes of the update being available) and it is working perfectly smooth on my systems.
I hope you find this helpful.mhunter, thanks and good that you take the time and effort again to remind everyone that it does take an effort to do a major OS update, to ensure maximum stability.
So far my 10.4.8 Update is a-okay, and I have had many trouble-free updates since installing 10.4
I too practice rigourously and "religiously" before and after an OS or Security Update, but I normally use Software Update, equally successful:
1. Before Startup, UNPLUG all external devices, left only keyboard, mouse and internet connection, unless they are all wireless.
2. Startup, disable NAV if any, Repair Disk Permission. Restart again, Repair Permission again.
3. Do Software Update
4. Restart, Repair Permission
5. Shutdown, plug everything back
6. Startup Mac, use Mac
So far these steps have been keeping all my macs both at home and at work very very stable and healthy.
Maybe, just maybe if everyone here, all mac users were to follow these steps, yes they can be a hassle, yes they can take up some time, but then there will be less less complains and "blasts" at Apple, just because perhaps themselves have been too careless or negligance in performing updates.
Cheers -
In dataflow before and after wards
Hi all
in grouping i selected"in data flow before and after wards".
now can i select required objects while installing the DSOhi krishna,
once u have selected "in data flow before and after wards" u need not select the objects manually.
all the relevant objects will be included automatically.
note: if the delivery content is already activated u can check this in the indicator near the object the signal will be green.
if ur content is already active and there are new pudates in sap delivery and if u dont want delete the existing active content u can perform a match.
match indicatior will by default is set if u want to install a new version of delivery.
reward points if help ful. -
PSC 1210 page feed before and after printing
My PSC 1210 has been working fine for years but it has just recently started feeding a blank page before and after printing. That wouldn't be a problem except that the blank pages are not fully ejected, this means that I have to grab the first blank page, as it comes through the printer, and pull it out, otherwise it gets drawn back in causing a paper jam when the actual print job starts. Once this blank page has been removed the print job continues perfectly.
This occurs when printing documents, copying using the scanner, and printing a test page.
I have removed and reinstalled the printer driver/software and performed a partial reset on the printer, neither fixed the problem.I see you mention that the issue also happens when you are copying, that means that this issue is not related to your printer software. So that's good to know!
Now, since this is not a software issue, this must then be related to your hardware. Is this printer plugged into a wall outlet directly or is it plugged into a surge protector? To be sure that the printer gets all the power it needs make sure that it is plugged directly into a wall outlet.
First things first, I would recommend unplugging the printer for about 30 seconds from both the back of the unit and from the wall outlet, and then plugging it back in. Try making a copy or print and see if the issue persists.
You can also try cleaning the paper feed rollers in the printer, here is a document that can show you where all of those are located and how to clean them.
http://goo.gl/glh8v
Let me know if any of this helps resolve the issue! -
Why there is implicit commit before and after executing DDL Statements
Hi Guys,
Please let me know why there is implicit commit before and after executing DDL Statements ?
Regards,
sushmitaHelyos wrote:
This is because Oracle has design it like this.Come on Helyos, that's a bit of a weak answer. :)
The reason is that it makes no sense to update the structure of the database whilst there is outstanding data updates that have not been committed.
Imagine having a column that is VARCHAR2(50) that currently only has data that is up to 20 characters in size.
Someone (person A) decides that it would make sense to alter the table and reduce the size of the column to varchar2(20) instead.
Before they do that, someone else (person B) has inserted data that is 30 characters in size, but not yet committed it.
As far as person B is concerned that insert statement has been successful as they received no error, and they are continuing on with their process until they reach a suitable point to commit.
Person A then attempts to alter the database to make it varchar2(20).
If the database allowed that to happen then the column would be varchar2(20) and the uncommitted data would no longer fit, even though the insert was successful. When is Person B going to find out about this? It would be wrong to tell them when they try and commit, because all their transactions were successful, so why should a commit fail.
In this case, because it's two different people, then the database will recognise there is uncommitted transactions on that table and not let person B alter it.
If it was just one person doing both things in the same session, then the data would be automatically committed, the alter statement executed and the person informed that they can't alter the database because there is (now) data exceeding the size they want to set it to.
It makes perfect sense to have the database in a data consistent state before any alterations are made to it, hence why a commit is issued beforehand.
Here's something I wrote the other day on the subject...
DDL's issue a commit before carrying out the actual action
As long as the DDL is syntactically ok (i.e. the parser is happy with it) then the commit is issued, even if the actual DDL cannot be executed for another reason.
Example...
We have a table with some data in it...
SQL> create table xtest as select rownum rn from dual;
Table created.
SQL> select * from xtest;
RN
1We then delete the data but don't commit (demonstrated by the fact we can roll it back)
SQL> delete from xtest;
1 row deleted.
SQL> select * from xtest;
no rows selected
SQL> rollback;
Rollback complete.
SQL> select * from xtest;
RN
1
SQL> delete from xtest;
1 row deleted.
SQL> select * from xtest;
no rows selectedSo now our data is deleted, but not committed, what if we issue a DDL that is syntactically incorrect...
SQL> alter tab xtest blah;
alter tab xtest blah
ERROR at line 1:
ORA-00940: invalid ALTER command
SQL> rollback;
Rollback complete.
SQL> select * from xtest;
RN
1... the data can still be rolled back. This is because the parser was not happy with the syntax of the DDL statement.
So let's delete the data again, without committing it, and issue a DDL that is syntactically correct, but cannot execute for another reason (i.e. the database object it refers to doesn't exist)...
SQL> delete from xtest;
1 row deleted.
SQL> select * from xtest;
no rows selected
SQL> truncate table bob;
truncate table bob
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> rollback;
Rollback complete.
SQL> select * from xtest;
no rows selectedSo, there we have it. Just because the statement was syntactically correct, the deletion of the data was committed, even though the DDL couldn't be performed.
This makes sense really, because if we are planning on altering the definition of the database where the data is stored, it can only really take place if the database is in a state where the data is where it should be rather than being in limbo. For example, imagine the confusion if you updated some data on a column and then altered that columns datatype to be a different size e.g. reducing a varchar2 column from 50 character down to 20 characters. If you had data that you'd just updated to larger than 20 characters whereas previously there wasn't, then the alter table command would not know about it, would alter the column size and then the data wouldn't be valid to fit whereas the update statement at the time didn't fail.
Example...
We have a table that only allows 20 characters in a column. If we try and insert more into that column we get an error for our insert statement as expected...
SQL> create table xtest (x varchar2(20));
Table created.
SQL> insert into xtest values ('012345678901234567890123456789');
insert into xtest values ('012345678901234567890123456789')
ERROR at line 1:
ORA-12899: value too large for column "SCOTT"."XTEST"."X" (actual: 30, maximum: 20)Now if our table allowed more characters our insert statement is successful. As far as our "application" goes we believe, nay, we have been told by the database, we have successfully inserted our data...
SQL> alter table xtest modify (x varchar2(50));
Table altered.
SQL> insert into xtest values ('012345678901234567890123456789');
1 row created.Now if we tried to alter our database column back to 20 characters and it didn't automatically commit the data beforehand then it would be happy to alter the column, but then when the data was committed it wouldn't fit. However the database has already told us that the data was inserted, so it can't go back on that now.
Instead we can see that the data is committed first because the alter command returns an error telling us that the data in the table is too big, and also we cannot rollback the insert after the attempted alter statement...
SQL> alter table xtest modify (x varchar2(20));
alter table xtest modify (x varchar2(20))
ERROR at line 1:
ORA-01441: cannot decrease column length because some value is too big
SQL> rollback;
Rollback complete.
SQL> select * from xtest;
X
012345678901234567890123456789
SQL>Obviously, because a commit statement is for the existing session, if we had tried to alter the table column from another session we would have got
SQL> alter table xtest modify (x varchar2(20));
alter table xtest modify (x varchar2(20))
ERROR at line 1:
ORA-00054: resource busy and acquire with NOWAIT specified
SQL>... which is basically saying that we can't alter the table because someone else is using it and they haven't committed their data yet.
Once the other session has committed the data we get the expected error...
ORA-01441: cannot decrease column length because some value is too bigHope that explains it -
I am trying to delete pages I have crated in numbers, but can only see them in print preview. Without print preview I do not see them. How can I delete these pages, but keep others before and after?
Hi Crushed,
Numbers doesn't have pages. It has a canvas that holds objects such as tables and charts.
Drag the objects from the bottom of the canvas onto the white space above. That will reduce the number of "pages" (sheets of paper) that will print.
Regards,
Ian. -
my ipod touch is stuck on the apple logo and after a while a white screen comes up and it restarts and the same thing all over agan. this happened to me before and after a while it turns on but why does it keep on doing this?
Try connecting the iPod Touch to your computer and restore it. http://support.apple.com/kb/HT1414
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New to FCPX on a project this weekend. I have gotten reasonably comfortable with the basic features but one thing that I CANNOT figure out, is how (what used to be) selecting a track in the timeline to activate it to apply a transition. I need to select a video clip which stands alone in the stack which is positioned above the primary track and add a blend transition before and after the clip. I have set the opacity to blend with the images in the primary track below but the beginning and end of the clip in the second stack do not fall at the transition points in the lower track which should not matter anyway. I can’t find it in Help or the third party tutorials that I purchased and completed. Thanks for your help!
Tom gave you the answer. As a follow-on you can then use the Cross Dissolve transition on your newly converted connected clip. This transition will allow it to dissolve smoothly into the video below it. Note that the Fade to Black transition will take both that clip and the video below it to black which would probably be undesirable. Use Cross Dissolve instead. Best wishes.
stephen -
GREP: How can I place a (for example) "*" before and after bold text with GREP?
Hi there.
I have a string of text as such:
I want to use GREP to insert a "*" (asterisk) before and after each bold part. Can I do that with GREP?
(if asterisk is a problem, I can use a different character)
Any help would be appreciated.Hi Schmaltzkopf,
try this:
Have fun -
What is the best app for before and after photos for my Mac?
I am looking for a program or app for my mac so i can put pictures up side by side.... like before and after photos. Any suggestions?
best cheap solutions.
acorn
https://itunes.apple.com/us/app/acorn-4-image-editor-for-humans/id634108295?mt=1 2
pixelmator
http://www.pixelmator.com/
Fotor (my fave) and FREE
https://itunes.apple.com/us/app/fotor-photo-editor/id503039729?mt=12
FXphoto studio
https://itunes.apple.com/us/app/fx-photo-studio-pro-effects/id312506856?mt=8 -
Hi,
Just switched from CS6 to PS CC. I am very comfortable using ACR in previous versions. I liked to use the preview checkbox located in the upper right-hand corner to see before and afters. That checkbox is no longer in my version of PS CC. I see that they have side-by-side, top and bottom and right and left before and after options in the lower right-hand corner in this version. Is there anyway to get that legacy preview checkbox back so that I can use it?Hi Warunicorn,
Thank you very much. I just could not find it on my own. I will have more questions as I get into it.
Jim -
Data Loading(Before and After Image)
I heard that a datasource which has both "Before and After Image " ,then the data can be sent directly to the infocube or from the DSO to the Infocube but where as
If a datasource supports after image then first it has to be loaded to the DSO and then to the Infocube ,
My question is how to know the image types of the datasource ?Hi Ravi,
Check in ROOSOURCE tables in ECC. You can find the behvariaour options in DELTA field, so based on this table we can say will it support Cube/ODS.
Delta Only Via Full Upload (ODS or InfoPackage Selection)
A ALE Update Pointer (Master Data)
ABR Complete Delta with Deletion Flag Via Delta Queue(Cube-Comp)
ABR1 Like Method 'ABR' But Serialization Only by Requests
ADD Additive Extraction Via Extracto (e.g. LIS Info Structures)
ADDD Like 'ADD' But Via Delta Queue (Cube-Compatible)
AIE After-Images Via Extractor (FI-GL/AP/AR)
AIED After-Images with Deletion Flag Via Extractor (FI-GL/AP/AR)
AIM After-Images Via Delta Queue (e.g. FI-AP/AR)
AIMD After-Images with Deletion Flag Via Delta Queue (e.g. BtB)
CUBE InfoCube Extraction
D Unspecific Delta Via Delta Queue (Not ODS-Compatible)
E Unspecific Delta Via Extractor (Not ODS-Compatible)
FIL0 Delta Via File Import with After-Images
FIL1 Delta Via File Import with Delta Images
NEWD Only New Records (Inserts) Via Delta Queue (Cube-Compatible)
NEWE Only New Records (Inserts) Via Extractor (Cube-Compatible)
O
ODS ODS Extraction
X Delta Unspecified (Do Not Use!) -
Repairing permissions before and after updating software
What is the reason to repair permissions before and after updating software? This may sound like a stupid question to many of you, but I am new to computers and I am trying to learn how and why of some of the things of my PowerBook. I installed some updates without repairing permissions. Did I install some software updates the wrong way? Thank you.
This is a topic which will draw as many emphatic for and against responses as overnight shut down or not, defrag or not, optimise or not, and so on.
I agree with Neil. I believe that OS X has progressed sufficiently that repair permissions has become redundant and so I do not do it on any regular basis.
Some folk may refer you to an Apple Support Article 303602. That Article in its 4 May 2006 version, titled "Top 10 Tips to Keep Your Mac in Top Form" suggested Repair Permissions should be done "after upgrading or installing new software". The Article was however revised on 15 May 2006 to be titled "Top Tips to Keep Your Mac in Top Form" and the item on Repair Permissions [along with two other recommended maintenance tips] was removed. It is my view that the conclusion to be drawn here is that Apple no longer considers Repair Permissions to be a required maintenance procedure.
Many users have adopted a "Repair Permissions" mantra for a cure-all over several years. I dropped it sometime in 10.3.
But, to each his own.
HTH
TiPB 867 Mac OS X (10.4.6) -
I have a number questions that I want to know the average of all the before and after data to compare them, how do I set this up in a form in FormsCentral? Here is an example of what I want to do - the green bar is "before" and blue is "after"
This isn't something that you can set up in FormsCentral. It's possible to something similar with a form you create in Acrobat and use with FormsCentral, but there is no sort of built-in graphing control. The bar graph could be implemented with some JavaScript that controls annotations or fields (buttons) and perhaps some text fields.
Maybe you are looking for
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