What are the advantages and disadvantages of the Joint operation

Hi, I am currently trying what out the advantages and disadvantages of the Joint Operation ... any help would be appreciated

The advantage of join operations are that joins allow
retrieval or data from more than one table at a
time.
A disadvantage of join operations is that the SQL
statement may be more complicated to write and read
than multiple simple selects.
Another advantage is that fetching data from multiple
tables in a single SQL statement is that using a join
is likely to be more efficient than using several
simple SQL statements with procedural logic
performing the work of the join.
There are basic three types of join operations in
Oracle: nested loop, hash join, and sort/merge.
You can find descriptions of these operations in the
Oracle Performance and Tuning manual.
HTH -- Mark D Powell --
Thanks for the information Mark ... Much Appreciated

Similar Messages

  • What are the advantages and disadvantages for the larger blocksize and for

    What are the advantages and disadvantages for the larger blocksize and for the smaller blocksize?

    Smaller blocksize
    Advantages
    GoodHas relatively large space overhead due to metadata
    (that is, block header).
    Not recommended for large rows. There might only
    be a few rows stored for each block, or worse, row
    chaining if a single row does not fit into a block, for small rows with lots of random
    access.
    Reduces block contention.
    Disadvantages
    Has relatively large space overhead due to metadata
    (that is, block header).
    Not recommended for large rows. There might only
    be a few rows stored for each block, or worse, row
    chaining if a single row does not fit into a block.
    Larger blocksize
    Advantages
    Has lower overhead, so there is more
    room to store data.
    Permits reading a number of rows into
    the buffer cache with a single I/O
    (depending on row size and block size).
    Good for sequential access or very large
    rows (such as LOB data).
    Disadvantages
    Wastes space in the buffer cache, if you are doing
    random access to small rows and have a large block
    size. For example, with an 8 KB block size and 50
    byte row size, you waste 7,950 bytes in the buffer
    cache when doing random access.
    Not good for index blocks used in an OLTP
    environment, because they increase block contention
    on the index leaf blocks.

  • What are the advantages and disadvantages to cookies?

    Ok, so I am required to interview some expert for a Final in college. I choose to do my final on cookies throughout the different browsers. The downside is that it is nearly impossible to get a one-on-one interview from an expert in this field. This is my next option. So here are my questions, and I greatly appreciate the help.
    1. What are the advantages and disadvantages of cookies?
    2. Where are the cookies stored, and is it possible for someone to access that information?
    3. You hear horror stories of hackers accessing the different cookies saved on a person's computer, and from there gradually piecing together enough information about that person, to hack into nearly every account they have. How probable is this? What safeguards can a person take against this happening?
    Once again, thank you for any help received.

    I attended uni back in the 70's, and as I recall we had to do some actual research for our term papers - like from books in the library, and needed to "document" our research in a footnote for each page.
    I guess times have changed a bit since then I guess - anecdotal evidence is permissible now?
    Here's a search of articles in the Mozilla Developer Network documentation.
    https://developer.mozilla.org/en-US/docs/tag/Cookies

  • What are the Advantages and Disadvantages of OC4J ?

    Hi,
    I want to know what are the advantages and disadvantages of OC4J server .
    Can anyone tell me please..
    Regards,
    Ajay

    simple, reliable, extremely fast and low cost of development: re-start takes 10 - 15 seconds. Its disadvantage may be less flexibility in configuration then heavy-weight Weblogic

  • What are the advantages and disadvantages of suppressed and unsuppressed content in indesign layer option?

    what are the advantages and disadvantages of suppressed and unsuppressed content in indesign layer option?

    I occasionally use layers set to suppress output for holding text that differs from the text in the visible part of a document that I need for variables or TOC entries sometimes, or for notes or guides I want in the file but I don't want printed. You might also want to suppress a layer with some sort of overlay, like the die-lines for a die-cut piece, when you export a PDF for screen viewing.
    I'm sure you can come up with other reasons for having content on a page in the layout, but not in the final output.

  • What are the advantages and disadvantages of suppressed and unsuppressed content?

    what are the advantages and disadvantages of suppressed and unsuppressed content?

    Hi Surya,
    surya n wrote:
    what are the advantages and disadvantages of suppressed and unsuppressed content?
    Are you referring to compressed files in your statement?
    If yes, then let me give you a general idea about it -
    Compressed file occupy less memory space as compared to its uncompressed counterpart, and hence can be uploaded/downloaded faster than the uncompressed one.
    Moreover Compressed files are less vulnerable to Malwares and Trojans, provided it is Locked and encrypted as well, Uncompressed files are more vulnerable to Malwares and viruses in general.
    I would love to help you with your query however i need to know that in which context you are asking this question so that i can point you in the right direction. Moreover please let me know if you are facing any type of Technical issue in any Adobe Product or Online service.
    Regards,
    Rahul

  • What are the advantage and disadvantage of LavView (comprared with C++)?

    Comparing with C++, what's the advantage and disadvantage of LavView? Because now I decide to write a new tool, we can't make sure which language we will use. The old tool was written in LabView environment.

    Visual Basic works pretty well if you would like to have a nice user
    interface and quick development.
    Nam.
    Alvaro Osle wrote in message
    news:3c065673$0$8509$[email protected]..
    > I think it depends on the tool you want to create.
    >
    > For instance, if the aim of the tool is to control different instruments
    > via GPIB or RS-232 and manage the data, I'll definitely go for the LabView
    > choice. LabView is a really powerful software in order to communicate
    among
    > different instruments and process, manage and show the information in the
    > PC. It's easier than C++ to communicate with instruments and many drivers
    > are available.
    >
    > If you don't need to control any external device, I wouldn't use LabView.
    >
    > Alvaro
    >
    >
    > may <
    [email protected]> wrote in message
    > news:[email protected]..
    > > Comparing with C++, what's the advantage and disadvantage of LavView?
    > > Because now I decide to write a new tool, we can't make sure which
    > > language we will use. The old tool was written in LabView environment.
    >
    >

  • CCM or MDM - What are the advantage and disadvantage

    Hi
    We are planning to install a catalog but is now in doubt what catalog system we must use. We use SRM5.0 but will upgrade to SRM6.0 if we have to.
    Can someone tell me the advantage and disadvantage for CCM and MDM?
    I know that some patches will be released in MDM2.0 in December and March and this patches will give the following:
    - Approver UI in Portal 7.0 (via iViews)
    - Integration of Electronic Forms
    - Config of Column With
    - Config of Image size
    - Support of decimal quantities ?!?!?!
    - Configurable products
    - Browse categories via images
    - Customer exits in Search UI
    - Search attributes by range
    Do CCM for example support the above (except the UI stuff)??
    Usefull hints will be rewarded.

    Hi
    <b>Please see related links -></b>
    CCM or MDM
    Re: Will CCM will be a part of MDM? And where to install it DMZ or intranet
    CCM in same client. advantages & drawbacks.
    Re: Are CCM and MDM separate modules?
    Re: CCM/ MDM Bundle?
    TREX and SRM-MDM
    Do let me know.
    Regards
    - Atul

  • What are the advantages and disadvantages

    Hi All,
                      What is the use of Master Data Management. And What are the advantages and disadvantages of Master Data Management.
    Thanks,
    Satish.

    Hi ,
    have a look on same thread :
    Re: MDM?
    - An
    Better search before posting .

  • What are the advantage and disadvantages of upgrad...

    please do tell me the advantage and disadvantages of updating the software of my 5530. Thank you

    This is written generally as the specifics of the new 5530 update are unknown, although it is believed to be just a minor bug fix update.
    Advantages:
    Bug fixes
    Speed increases
    Stability increases
    The possibility of new features.
    Disadvantages:
    New bugs may be introduced.
    Something may go wrong during the update that could leave the phone unusable.
    Disappearing languages if the phone has previously been modified by the retailer (for example they imported the phone from another country and modified it to include other languages).
    If you are happy with your phone then it's probably best not to update it if you are worried about potential problems.

  • What is the Advantage and Disadvantage of Pre-Compiled JSP

    Hi All,
    What is the advantage and disadvantage of using pre-compiled JSP

    Pro:
    By pre-compiling your JSPs you don't need a java compiler on the server - just a jre.
    The result? No java compiler on the server means a potential security hole patched - people can't just write and deploy jsp's willy nilly on the server.
    You KNOW that all your JSPs compile before you visit them - because you have compiled them all :-). It won't fail because of a stupid spelling miskate that prevents compilation. That doesn't mean they will run without error of course...
    Con:
    Compiling the JSPs ties them to a particular server - unless you take the runtime along with them.

  • What is the advantages and disadvantages of having 2012 DHCP within the Domain or its better to keep it stand alone

    What is the advantages and disadvantages of having 2012 DHCP within the Domain or its better to keep it stand alone
    I am Trying to upgrade Current DHCP 2003 Server to 2012 to get benefit from the latest fail over plan and I Want to be sure that it doesn’t affect the current setup

    Hi，
    For DHCP migration, there won’t be any problem. You can follow the guide below：
    Step-By-Step: Migration of DHCP from Windows Server 2003 to Windows Server 2012
    http://blogs.technet.com/b/canitpro/archive/2013/04/29/step-by-step-migration-of-dhcp-from-windows-server-2003-to-windows-server-2012.aspx
    If you have any other role installed on windows server 2003, please read the relevant article:
    Migrate Roles and Features to Windows Server 2012
    http://technet.microsoft.com/en-us/library/dn486809.aspx
    Hope this helps.

  • Doubts about the advantages and disadvantages of BEx Analyzer

    Hi people!
    Do you know in specific. What are the advantages and disadvantages of BEx Analyzer?
    and Do you know the limitations and scope of the bex analyzer?
    Talking about the security issue. What kind of resticciones be applied to end-users to control information. Protecting system
    resources and the information that the user uses, not be manipulated.
    I hope you could answer my doubts
    Ramon
    Thanks

    Hi!
    The standard BEx BI 3.x tools, is no longer available with the SAP NetWeaver 7.0 BI tools; however, it is part of the SAP BI add-on installation that, by default, will install the BW 3.x tools along with the newer BI 7.0 tools.
    We want to prevent unauthorized download of data to excel sheets from users who have installed bex analyzer but are not authorized to do that. Certain users only have to access querys from web and shouldn't have to use reports from bex analyzer.
    The only accepted way to access reports for all users is by using web querys published in our intranet. But many users have bex analyzer installed and we don't want that an unauthorized user download data to a excel sheet via bex analyzer.
    I'm testing with one user with this roles, but bex web template and bex analyzer have similiar object authorizations, and i don't know if is possible prevent unauthorized download of data from excel sheets.
    Final users don't access to bex analyzer by rrmx transaction
    Until know i'm testing with this user roles:
    1. ZBW:BEX_WEB:RFC (for web templates)
    S_RFC:
    ACTVT:     16
    RFC_NAME:
    RFC1
    RSBOLAP_BICS
    RSBOLAP_BICS_CONSUMER
    RSBOLAP_BICS_PROVIDER
    RSBOLAP_BICS_PROVIDER_VAR
    RSOBJS_RFC_INTERFACE
    RSRCI_LOCAL_VIEW
    RSWRTEMPLATE
    SDIFRUNTIME
    SYST
    RFC_TYPE:  FUGR
    2. ZBW:BEX:RFC (for Bex Analyzer):
    ACTVT:     16 
    RFC_NAME:
    RSOBJS_RFC_INTERFACE
    RSR_XLS_RFC
    RZX0
    SDIFRUNTIME
    SM02
    SUNI
    SYST
    RFC_TYPE:  FUGR
    please take in count this points:
    1. Prevent unauthorized download of data to excel sheets from users that should have accees only querys from web not bex analyzer (very important this point)=
    2. what are the disadvantages of BEx Analyzer, if only if limited by excel...from other point like performance, workprocess with long runtimes, memory issues, for said something.
    I don't know if i'm going by good way.
    Somebody could help me?
    Ramon

  • I currently have a Macbook pro 10.6.8 and i'm interested software upgrade What are the advantages and disadvantages for upgrading my software.

    Ok... the only reason why i want to uprade my software is because of StarCraft 2. For those that don't know, Heart of the Swarm is coming out this March. I've been eagerly waiting for this expansion. I just read that SC2 HOTS will not be able to support any software below lion. I currently have 10.6.8 and i was wondering what are the disadvantages and advantages (aside from being able to play this expansion) of upgrading my software? Are there any draw backs, etc.

    Go all the way to Mountain Lion if you can...
    Upgrade to Mountain Lion
    But...
    Before attempting any Major Upgrade... get yourself an External Hard Drive... and create a Bootable Clone Backup of your current Hard Drive...
    By far the easiest way to make such a Backup, is to use something like
    SuperDuper  http://www.shirt-pocket.com/
    or CCC  http://www.bombich.com/
    That way, should anything untoward happen during the Upgrade,
    you will NOT LOSE ANYTHING.
    (Get an EHD that is at least equal to your current Drive...)
    Also, get more RAM...
    You can use this Link to check which RAM is suitable for your Mac...
    http://eshop.macsales.com/shop/apple/memory/
    It is Important to get the Correct and Matching RAM
    For best performance, fill all memory slots, installing an equal memory module in each slot.
    That site also has videos on how to Install RAM should you need it...
    Here are Apples Instructions... Installing RAM
    MBP        http://support.apple.com/kb/ht1270

  • Should clients migrate right away to SOA Suite 12c?, what are the advantages and disadvantages?

    12c looks like a fine version, it seems to have a lot of advantages and new features. Is it recommendable for clients using 11g to make an effort and immediately adopt the new version of the suite?

    Hi there,
    I love the answer from my friend Chris here (+5 buddy!) You can't
    go wrong with this advice
    I just thought I would add that for any phones that can run both
    SCCP & SIP you find these comparison guides which may help;
    Feature Support by Protocol for the Cisco Unified IP Phone 8941 and 8945
    http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/8941_8945/8_5/english/admin_guide/6921apxg.html
    Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide  for Cisco Unified Communications Manager 9.0 (SCCP and SIP) - Feature Support by Protocol
    http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/6921_6941_6945_6961/9_0/english/admin_guide/P690_BK_4AB91FB_00_admin-6921-6941-6945-6961_appendix_01111.html
    Cheers!
    Rob
    "Why do the best things always disappear " 
    - The Band

Maybe you are looking for

  • Fn Keys and Eject Keys Don't Work in Windows

    I'm fairly good to go with Snow Leopard and Boot Camp and on installing Windows on my wife's 13" MacBook Pro that I finally convinced her to get, I had a "hard drive not big enough" during the SP3 update BUT found a solution for that, however, all th

  • Macbook Pro will not fully shut down!

    Recently my MacBook Pro will not shut down. It looks as if all programs close, the dock disappears, the desktop clears, and then there is the circle of dashes that comes on when the MacBook is turning on. The circle of dashes (I'm sure there's a bett

  • Backing up folders in Entourage

    Hi. I'm not sure whether this is the right place to post questions about Entourage but it's the closest I can find . . . I want to reformat my hard drive and upgrade from OSX.2 to OSX.4. When I reinstall Entourage, how do I make sure that I can keep

  • Itunes do not start

    how to fix it? (i have the last version of itunes)

  • Strange issue with percentages

    Hi everyone, I have a page that does some comparisons of percentages. one of the things it does is looks at cases closed within the amount of time allowed and how many closed not in the time allowed, divide the 2 and times 100 and that gives me my pe