What's the difference between the two Hanging Tree songs on iTunes?

/Library contains files and settings that apply system wide to all users.
~/Library contains files and settings that only apply to your user account.

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Whats the difference between these two queries ? - for tuning purpose

Whats the difference between these two queries ?
I have huge amount of data for each table. its takeing such a long time (>5-6hrs).
here whice one is fast / do we have any other option there apart from listed here....
QUERY 1:
SELECT --<< USING INDEX >>
      field1, field2, field3, sum( case when field4 in (1,2) then 1 when field4 in (3,4) then -1 else 0 end)
    FROM
      tab1 inner join tab2 on condition1 inner join tab3 on condition2 inner join tab4 on conditon3
    WHERE
     condition4..10 and
    GROUP BY
      field1, field2,field3
    HAVING
      sum( case when field4 in (1,2) then 1 when field4 in (3,4) then -1 else 0 end) <> 0;
QUERY 2:
   SELECT --<< USING INDEX >>
      field1, field2, field3, sum( decode(field4, 1, 1, 2, 1, 3, -1, 4, -1 ,0))
    FROM
      tab1, tab2, tab3, tab4
    WHERE
     condition1 and
     condition2 and
     condition3 and
     condition4..10
    GROUP BY
      field1, field2,field3
    HAVING
      sum( decode(field4, 1, 1, 2, 1, 3, -1, 4, -1 ,0)) <> 0;
[pre]

My feeling here is that simply changing join syntax and case vs decode issues is not going to give any significant improvement in performance, and as Tubby points out, there is not a lot to go on. I think you are going to have to investigate things along the line of parallel query and index vs full table scans as well any number of performance tuning methods before you will see any significant gains. I would start with the Performance Manual as a start and then follow that up with the hard yards of query plans and stats.
Alternatively, you could just set the gofast parameter to TRUE and everything will be all right.
Andre

What is the difference between these two reports MC.1 and MB5L

Hi
what is the difference between these two reports MC.1 and MB5L?
what is the Purpose of each report?
Material ledger is activated for this plant, we found some amount difference between these two reports, my client accounting department used to compare these two reports while year end/month end closing
Thanks
Raju

MC.1 will give you the report for plant analysis as per plant .
MB5L report will give you list of stock value as per G/L account wise.

What's the difference between these two backup systems?

When I bought my Macbook Pro I bought a Seagate external HD that used Bounceback Express as its backup application. But now my Mac defaults to Time Machine. What's the difference between the two applications? When I use Time Machine to back up my hard drive to the Seagate external, is it doing the same thing as Bounceback Express used to?

In analog terms, to explain YCbCr use the example of the COMPONENT output from your DVD player. It use 3 separate cables (Y = Luminance = Green Cable), (Y-B = Blue Color Diff = BLUE Cable) and (Y-R = Red Color Diff = RED Cable). In the analog world, RGB is actually RGBHV (5-wire) and is adaptable to 15-pin VGA with a simple passive adapter. Many people will mistakenly refer to Analog Component video as RGB, since the cables are Red, Green and Blue.
So, since all that mumbo jumbo means essentially the same, this appears to be the digital "equivalent" of what is known as Component Video in the Analog world... What I said about RGBHV does not apply to the 10-bit color, but thought I'd mention it anyway.
-BChil

What are the differences between this two statements???

1.select * from counter where eboxid = (select acctid from zsyy_ocecs.cm_subs_subscriber where servnumber = ?);
2.select b.* from zsyy_ocecs.CM_SUBS_SUBSCRIBER a,COUNTER b where a.acctid = b.eboxid and a.servnumber = ?;
what are the differences between the 2 sql statements？？
I WILL APPRECIATE FOR YOUR ANSWERS VERY MUCH, BECAUSE I WAS PUZZLED WHEN I SAW THE EXECUTION PLANS.THANKS AGAIN. MR SHI.
the followings are their execute plans:
Command> select * from counter where eboxid = (select acctid from zsyy_ocecs.cm_subs_subscriber where servnumber = ?);
Query Optimizer Plan:
STEP: 1
LEVEL: 2
OPERATION: TblLkTtreeScan
TBLNAME: ZSYY_OCECS.CM_SUBS_SUBSCRIBER
IXNAME: IDX_SERVNUM
INDEXED CONDITION: CM_SUBS_SUBSCRIBER.SERVNUMBER = qmark_1
NOT INDEXED: ROWNUM < 3
STEP: 2
LEVEL: 2
OPERATION: RowLkTtreeScan
TBLNAME: COUNTER
IXNAME: IDX_COUNTER
INDEXED CONDITION:
COUNTER.EBOXID = CM_SUBS_SUBSCRIBER.ACCTID
NOT INDEXED: <NULL>
STEP: 3
LEVEL: 1
OPERATION: NestedLoop
TBLNAME: <NULL>
IXNAME: <NULL>
INDEXED CONDITION: <NULL>
NOT INDEXED: <NULL>
Command> select b.* from zsyy_ocecs.CM_SUBS_SUBSCRIBER a,COUNTER b where a.acctid = b.eboxid and a.servnumber = ?;
Query Optimizer Plan:
STEP: 1
LEVEL: 2
OPERATION: TmpTtreeScan
TBLNAME: ZSYY_OCECS.CM_SUBS_SUBSCRIBER
IXNAME: <NULL>
INDEXED CONDITION: <NULL>
NOT INDEXED: A.SERVNUMBER = qmark_1
STEP: 2
LEVEL: 2
OPERATION: TblLkTtreeScan
TBLNAME: COUNTER
IXNAME: IDX_COUNTER
INDEXED CONDITION: B.EBOXID
= A.ACCTIDNOT INDEXED: <NULL>
STEP: 3
LEVEL: 1
OPERATION: MergeJoin
TBLNAME: <NULL>
IXNAME: <NULL>
INDEXED CONDITION: A.ACCTID = B.EBOXID
NOT INDEXED: <NULL>
Edited by: user9533799 on 2008-9-3 上午1:28

If zsyy_ocecs.cm_subs_subscriber table returns one row for each servnumber, both statements would return the same data. But if there was a servnumber value on two rows, the first statement will throw an error (you a comparing a value with a set of values). You can rewrite the first query to avoid this:
select * from counter where eboxid in (select acctid from zsyy_ocecs.cm_subs_subscriber where servnumber = ?);
Conceptually they are different and the execution plan can't be the same.

What's the difference between the two Library folders?

What's the difference between the two Library folders - the one in the users folder and the other?

/Library contains files and settings that apply system wide to all users.
~/Library contains files and settings that only apply to your user account.

What is the difference between these two sticks of RAM?

I am upgrading my Macbook 2.2 GHz Intel Core 2 duo from 2GB of ram to 4GB
What is the difference between these two kits?
4GB Kit (2 x 2GB) 200 Pin DDR2-667 PC2-5300 256x64 CL5 1.8V SODIMM ($102.00)
4GB Kit (2 x 2GB) eRam 200 Pin DDR2-667 PC2-5300 CL5 1.8V SODIMM ($88.00)

Probably nothing of any consequence. Some places can just negotiate better deals with suppliers. Or one of a million other factors that can affect price is in play here.
When buying RAM, I generally find it's better to pay a little extra to get a brand that's known for quality. I usually stick to Crucial myself. If you look around, you can probably find some real steals out there, but I don't know... With stories of people who literally go dumpster diving, salvaging stuff that was slated for disposal, then turning around and selling it... I prefer not to take chances. If you are, by all means, go for the cheaper one.

What is the difference between these two portalapps folders on the Server?

Hello,
On the Server there are two portalapps folder:
1. Under: C:\usr\sap\JXX\JC00\j2ee\cluster\server0\apps\sap.com\irj\servlet_jsp\irj\root\portalapps
2. Under: C:\usr\sap\JXX\JC00\j2ee\cluster\server0\apps\sap.com\irj\servlet_jsp\irj\root\WEB-INF\portal\portalapps
Can someone please explain me what is the difference between these two portalapps folders and under which case will I turn to which folder?

Hi Roy,
The one at this location
Under: C:\usr\sap\JXX\JC00\j2ee\cluster\server0\apps\sap.com\irj\servlet_jsp\irj\root\portalapps
has all the files from the WEB-INF folder i.e. these are the non-web resources and cannot be accessed via HTTP(S) examples would be imgaes, CSS etc that you want only your application to access
those under
Under: C:\usr\sap\JXX\JC00\j2ee\cluster\server0\apps\sap.com\irj\servlet_jsp\irj\root\WEB-INF\portal\portalapps
they have all the .JAR files, portalapp.xml, config properties etc. these are web resources and can be accessed via HTTP(S)
Hope this is of help.
Akhilesh

What is the difference between these two commands?

What is the difference between these two commands?
DROP TABLESPACE users INCLUDING CONTENTS;
DROP TABLESPACE users INCLUDING CONTENTS AND DATAFILES;
--------No.202

http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_9004.htm#i2133717

What is the difference between the two update statements

Hi Everyone
Along with the emp table in scott kindly insert the to ins statement into emp.
Insert into EMP
(EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
Values
(8000, 'JAMES', 'CLERK', 7698, sysdate,
1000, 10, 30);
Insert into EMP
(EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
Values
(8001, 'JAMES', 'CLERK', 7698, sysdate,
1000, 10, 30);
Consider the below two update statements.
1) update emp a
set ename=(select loc
from dept b
where a.deptno=b.deptno)
where exists(select loc
from dept b
where a.deptno=b.deptno)
2) update emp a
set ename=(select loc
from dept b
where a.deptno=b.deptno)
What is the difference between the 1st and 2nd update statement? what is the use of exists clause in the first update statement ? Can u suggest in what case will the two update statements provide different results.
Thanks in advance

Second one updates all records in emp. If there is no record in dept then ename will be updated to null.
The first one only updates records in emp where a record in dept exists. It does not matter whether loc is non-null in dept or not. In an EXISTS query it doesn't matter if you do SELECT *, SELECT LOC, SELECT 1, SELECT NULL - Oracle just checks for existence.
So most often an update like the first one is meant to improve performance by only updating those emp records that are needed. Usually that is a good idea.
For this very specific case where all employees do belong to a department, all records in emp will be updated anyway, so for this specific case it actually makes worse performance because it does work to make an unnecessary check.
Normally the EXISTS query is good for performance, but always figure out if they are needed first ;-)

What's the difference between the two IE11 installers listed below?

Hello,
What is the difference between these two IE-11 downloads (image below)? One is 28MB and one is 54MB. I am having a lot of post-installation issues with the 54MB installer (i.e. opens blank pages, can't access a simple page like google, Windows search stops
indexing). When I install the 28MB download, (so far) I don't have any issues. Since the 28MB installation works, it sounds like my desision is easy but I would still like to know the difference between the two. BTW, the quick install is only 2MB, so I know
I don't have the quick install.
Any help would be appriciated, thank you in advance.
Sorry, for the spacing on the links below. This system won't let me add 'real' links until my account is varified.
28MB Installer Link
microsoft . com / en-us / download / details.aspx?id=40902
54MB Installer Link
windows . microsoft . com / en-us / internet-explorer / ie-11-worldwide-languages

Hi,
In my environment, they are the same size:
Alex Zhao
TechNet Community Support

Does the Ipad 2 3rd generation have the two cameras? What is the difference between the Ipad 2 , 2nd and 3rd generation?

Does the Ipad 2 3rd generation have the two cameras? What is the difference between the Ipad 2 , 2nd and 3rd generation?

All iPads have the camera except the very first generation. You can only buy an iPad2, the new iPad (4th gen) and the iPad Mini now. You can compare for yourself.
http://www.apple.com/ipad/compare/

What is the difference between these two matrices

Hi,
I was given some code from Altenbach to fix a problem I was having, his example works perfectly but when I connect it to my matrix it gets errors, so my question is what is the difference between the random matrix he made and the matrix coming out of the eigenvector node of the eigeinvector eigenvalue vi.?
Thanks in advance for your help.
Attachments:
SortColumnsBySum.vi ‏14 KB

Thank you,
I should have seen that this was wat it was outputting. Please excuse my ignorance beacuse I am fairly new at this, so I can see that the sort complex sorts the colum in ascending order vertically what I need to do is rearrange the order of the matrix horizontally column by column with the sum of the column being the order. E.g if the sum along the column verically is the largest then that column is made column 1 etc. Is it possible to do this with either of the functions you mentioned? I think that I will need to keep the values neagative and posative so that I can take the largest value column, is this correct?

What is the Difference between these Two?

Hi All,
In Oracle University site i saw 2 Courses for Oracle Webcenter sites. Just i would like to know the difference between these two. Based on your input i can decide which one to take.
*1. Oracle Webcenter Sites for Developers*
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=609&p_org_id=1001&lang=US&get_params=dc:D73886GC10,p_preview:N
*2. Oracle Webcenter Sites 11g for Developers*
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=609&p_org_id=1001&lang=US&get_params=dc:D78300GC10,p_preview:N
Is the 1st one is Fatwire and the 2nd one is Fatwire+Oracle latest implmentation ? Is my understanding is right?
regards
Sri

It's the same lens, just different sellers. The higher one is the MSRP, or close to it. But since they use this lens in a kit it goes for less. I have no idea who Celltime Inc is, but it's fullfilled by Amazon, so I'd feel reasonably safe. Just look into their return policy.
With the recent release of the 6D and somewhat recent 5d3, the market is flooded with these lenses from kits; I wouldn't pay more than 800 something for it. Getting it through Amazon is a bonus over eBay. If the seller checks out I'd go for it.
Edit: DH beat me to it.

What is the difference between these two partitioning related commands?

What is the difference between the following commands used to drop a partitioned table ?
DROP TABLE...
DROP TABLE...PERGE

Oracle Database processes a DROP TABLE statement for a partitioned table in the same
way that it processes the statement for a non-partitioned table. One exception that was
introduced in Oracle Database 10g Release 2 is when you use the PURGE keyword.
To avoid running into resource constraints, the DROP TABLE...PURGE statement for a
partitioned table drops the table in multiple transactions, where each transaction drops
a subset of the partitions or subpartitions and then commits. The table becomes
completely dropped at the conclusion of the final transaction
First, if the DROP TABLE...PURGE statement fails, you can take corrective action, if any,
and then reissue the statement. The statement resumes at the point where it failed.
Second, while the DROP TABLE...PURGE statement is in progress, the table is marked as
unusable by setting the STATUS column to the value UNUSABLE in the following data
dictionary views:
■ USER_TABLES, ALL_TABLES, DBA_TABLES
■ USER_PART_TABLES, ALL_PART_TABLES, DBA_PART_TABLES
■ USER_OBJECT_TABLES, ALL_OBJECT_TABLES, DBA_OBJECT_TABLES

What's the difference between the two Hanging Tree songs on iTunes?

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