Question about Schemas

Hi,
I have my application setup with all my queries coming from one schema.
If I want to query a table from a different schema in my application, what is the syntax to do this? Should it be something like
Select "TABLE"."ID"
From "SCHEMA2"."TABLE"
Where .....
I tried this syntax, but I keep getting errors about invalid identifiers or that tables do not exist.
Thanks in advance,
Nora

you can alias tables and columns within a select statement. While this is partly just a shorthand, it is generally good practice, and in HTMLDB, sometimes required for long columns (or concatenations, etc.). So, my_alias can be anything, for example
say you have a table named THIS_IS_A_REALLY_LONG_TABLE_NAME
and you have a column
THIS_IS_A_LONG_COLUMN_NAME
you can write
select t1.THIS_IS_A_LONG_COLUMN_NAME c1
from THIS_IS_A_REALLY_LONG_TABLE_NAME t1
where c1 ...

Similar Messages

A question about schema

I am intrigued by the term 'schema' in Oracle. It seems that it is just a synonym of 'user'. Is it just a conceptual term and can be substituted by 'user' in a sense ? I am confused because I've never seen the keyword synonym appear in any sql statements. Thks.
A beginner.

Hi,
>>It seems that it is just a synonym of 'user'.
No. From documentation, a schema is a collection of database objects. A schema is owned by a database user and has the same name as that user. Schema objects are the logical structures that directly refer to the database's data. Schema objects include structures like tables, views, and indexes. (There is no relationship between a tablespace and a schema. Objects in the same schema can be in different tablespaces, and a tablespace can hold objects from different schemas.)
>>I am confused because I've never seen the keyword SCHEMA appear in any sql statements.
Did you already heard about "alter session set current_schema" command ?? You can see from [url http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_2012.htm]documentation, that CURRENT_SCHEMA parameter changes the current schema of the session to the specified schema. Subsequent unqualified references to schema objects during the session will resolve to objects in the specified schema. The setting persists for the duration of the session or until you issue another ALTER SESSION SET CURRENT_SCHEMA statement. This setting offers a convenient way to perform operations on objects in a schema other than that of the current user without having to qualify the objects with the schema name. This setting changes the current schema, but it does not change the session user or the current user, nor does it give the session user any additional system or object privileges for the session.
Legatti
Cheers

Question about schema

Hello expert,
I have a statement as follows in the procedure:
cm_report.get_trans_type_amount@prod(c.claim_pk,'INDRES',to_date('1/1/1900','mm/dd/yyyy'),
to_date('1/1/3000','mm/dd/yyyy'),
'T') AS IND_RESERVE,
but in the system, I can't find schema "cm_report", will you please tell me what that 'cm_report' is?
Many Thanks,

It could be a package name, or an existing schema in the remote database ("prod").

Questions about CIN tax procedure choice and pricing schemas

Hi all,
I have to implement SAP on a Indian company and I'm verifying all particularity about this country (in particular tax procedures and the great number of differents tax conditions used).
I have two questions about tax procedures and pricing schemas. Every feedback about thse points will be appreciated.
a) To choose tax procedure TAXINN or TAXINJ which are the elements that I have to consider?
I have read lot of documentation about CIN implementation and Iu2019m oriented to choose TAXINN schema, but If possible I would to understand better which are on behalf of one choice or another.
b) To define pricing schemas for India, after check with local users and using examples of documents (in particular tax invoice) actually produced, I have understood that taxes have to be applied on amount defined starting from price list, minus discounts recognized to customer plus surcharges eventually to bill (packing, transport, etc.).
Itu2019s correct for any type of taxes that tax amount is calculated on u201Cnet valueu201D defined at item level or there are exceptions to this rule?
Thanks in advance
Gianpaolo

hi,
this is to inform you that,
a) About point 1 I know the difference between the 2 tax procedures (conditions or formulas). I also have read in others post in the FORUM that TAXINN is preferable. So I would to understand which are the advantages to choose instead TAXINJ. There are particular reasons or it'a only an alternative customizing setting?
a.a. for give for posting the link : plese give me the advantages of TAXINJ and TAXINN
CIN - TAXINN and TAXINJ
b) About point 2, to define which value has to be used as base amount to calculate taxes isn't a choice, but is defined depending by fiscal requirement of the country, in this case India fiscal requirement. I know that, as Lakshmipathi
write as answer on my question, exception could be, but it was important for me to understand if I have understood correctly the sequence of the pricing condition in the schema in "normal" situation.
b.b. you can create your own pricing procedure for this and go ahead.
hope this clears your issue.
balajia

A few questions about the design of the scheme

Hello, all!
I want ask some question about design of the scheme.
1) If i store info about user (for example: /Smith/Bob - /phone values{+1 964 258 46 52}), i can request information by user (input parameters: /Smith/Bob - /phone, output:+1 964 258 46 52), but if i want get username by phone i must generate in store second string /19642584652 values{Smith Bob}. But I must duplicate any string - very prodigally. Are existing some work aruond?
2) if i want store some string with different minor key i put: ( /Smith/Bob - /phone, /Smith/Bob - /image, /Smith/Bob - /adress), but i already get duplicate date. Are existing any compressin major`s key? If yes - how it works
3) Are existing in Oracle NoSQL something like secondary index? If exist - how it works?
4) If i want get value by major key, im use get function(for example /Smith/Bob - /phone). How works searching algoritm? What mathematical basis of search?

>
So, some a few clarifying questions.
1) Request comes from the client(to cluster). It identifies the major key. And any rep group understand: contained in it is this line?
2) If contains - they use b-tree map to find the right key (as local index in Oracle DB).
Is it correct?
>
No. Please read the doc and the other forum threads. They explain this issue.
>
Can i use any different algoritm to search, different indexes(function based) for example (on step 2)?
>
No.
when the expected release of this option?Oracle employees cannot talk about future release dates and contents.
What algorithm used to compress the prefix of the key. And how it work`s.If you're interested in the implementation details you can read the BDB JE documentation on key prefixing and the BDB JE source code. See com.sleepycat.je.DatabaseConfig.setKeyPrefixing.
http://docs.oracle.com/cd/E17277_02/html/index.html
--mark

I have a question about extracting pages. When I do the function, adobe saves the individual files as " file name space page number ", so the files look like this "filename 1.pdf", "filename 2.pdf", "filename 3.pdf". Without too many gory details, I a

I have a question about extracting pages. When I do the function, adobe saves the individual files as "<file name><space><page number>", so the files look like this "filename 1.pdf", "filename 2.pdf", "filename 3.pdf". Without too many gory details, I am using excel to concatenate some data to dynamically build a hyperlink to these extraced files. It casues me problems, however, for the space to be the the file name. Is there any way to change the default behavoir of this function to perhaps use a dash or underscore instead of a space?

No, you can't change the default naming scheme. You can do it yourself if you extract the pages using a script instead of using the built-in command.

Question about LRU in a replicated cache

Hi Tangosol,
I have a question about how the LRU eviction policy works in a replicated cache that uses a local cache for its backing map. My cache config looks like this:
<replicated-scheme>
<scheme-name>local-repl-scheme</scheme-name>
<backing-map-scheme>
<local-scheme>
<scheme-ref>base-local-scheme</scheme-ref>
</local-scheme>
</backing-map-scheme>
</replicated-scheme>
<local-scheme>
<scheme-name>base-local-scheme</scheme-name>
<eviction-policy>LRU</eviction-policy>
<high-units>50</high-units>
<low-units>20</low-units>
<expiry-delay/>
<flush-delay/>
</local-scheme>
My test code does the following:
1. Inserts 50 entries into the cache
2. Checks to see that the cache size is 50
3. Inserts 1 additional entry (as I understand it, this should cause the eviction logic to kick-in)
4. Checks the cache size again, expecting it to now be 20
With HYBRID and LFU eviction policies, the above logic works exactly as expected. When I switch to LRU however, the code at step 2 always returns a value significantly less than 50. All 50 inserts appear to complete successfully, so I can only assume that some of the entries have already been evicted by the time I get to step 2.
Any thoughts?
Thanks.
Pete L.
Addendum:
As usual, in attempting to boil this issue down to its essential elements, I left out some details that turned out to be important. The logic that causes the condition to occur looks more like:
1. Loop 2 times:
2. Create named cache instance "TestReplCache"
3. Insert 50 cache entries
4. Verify that cache size == 50
5. Insert 1 additional entry
6. Verify that cache size == 20
7. call cache.release()
8. End Loop
With this logic, the problem occurs on the second pass of the loop. Step 4 reports a cache size of < 50. This happens with LRU, LFU, and HYBRID-- so my initial characterization of this problem is incorrect. The salient details appear to be that I am using the same cache name each pass of the loop and that I am calling release() at the end of the loop. (If I call destroy() instead, all works as expected.)
So... my revised question(s) would be: is this behavior expected? Is calling destroy() my only recourse?
Message was edited by: planeski

Robert,
Attached are my sample code and cache config files. The code is a bit contrived-- it's extracted from a JUnit test case. Typically, we wouldn't re-use the same cache name in this way. What caught my eye however, was the fact that this same test case does not exhibit this behavior when running against a local cache directly (as opposed to a repl cache backed by a local cache.)
Why call release? Well, again, when running this same test case against a local cache, you have to call release or it won't work. I figured the same applied to a repl cache backed by a local cache.
Now that I understand this is more a byproduct of how my unit tests are written and not an issue with LRU eviction (as I originally thought), it's not a big deal-- more of a curiosity than a problem.
Pete L. Attachment: coherence-cache-config.xml (*To use this attachment you will need to rename 545.bin to coherence-cache-config.xml after the download is complete.) Attachment: LruTest.java (*To use this attachment you will need to rename 546.bin to LruTest.java after the download is complete.)

Simple Questions about ESB and ftp adapter.

We have the following Business Scenario:
We have a partner company that provide us a ftp server with some files. We need to transfer these files from this server to other server, we don't need to read the file's content, we just need transfer the files.
We are planning to use ESB in order to implement this solution but we have the following questions:
Is it possible use the ftp adapter in order to transfer the files?
Is there any example available about (Schema is Opaque feature) on a ftp adapter?
Thanks
Ramiro Ortiz

Thank you very much for your reply.
. I am trying to construct a FTP ( get) adapter with which I would like to do a simple FTP transfer from /var/out directory server xxx.oms.com (say) to a directory /home/in on the server bos1.oms.com (say) could not figure out this in jdeveloper 10.1.3.3 ( do i need upgraded jdeveloper?). The esb server and control exists on server bos1.oms.com. While constructing the adapter in jdeveloper it asks for physical directory? Is this the directory where it will the read the file from? How do I specify if the directory exists on the different server.
is it something like xxx.oms.com:/var/out
Please let me know.

Question about function with in parameters

Hello,
I have a question about functions with in-parameters. In the HR schema, I need to get the minimum salary of the job_id that is mentioned as an in-parameter.
this is what I am thinking but I dont know if it's correct or not or what should I do next!
create or replace function get_minimum_salary (i_job_id in varchar2)
return number
as
begin
SELECT min_salary INTO min_sal
FROM jobs
where job_id = get_minimum_salary(xy);
RETURN i_job_id;
end get_minimum_salary;
thanks in advance
EDIT
Thanks for your help all.
Is it possible to add that if the i_job_id which is the in type parameter does not have a minimum salary then use the following function to register an error:
create or replace procedure insert_error (i_error_code in number,
i_error_message in varchar2)
as
begin
insert into error_table (error_user, error_date, error_code, error_message)
values (user,sysdate,i_error_code,i_error_message);
end insert_error;
This function is basically to say that an error has occured and to register that error, at the same time I need to print out the error using the dbms_out.put_line.
Any ideas of how to do that?
Thanks again
Edited by: Latvian83 on Jun 1, 2011 5:14 AM

HI
I have made little bit changes in ur code. try this
create or replace function get_minimum_salary (i_job_id in varchar2)
return number
as
v_Min_sal jobs.salary%type=0;---- Variable declaration
begin
SELECT min_salary INTO v_ min_sal
FROM jobs
where job_id = i_job_id;
RETURN v_Min_sal;
end get_minimum_salary;
Regards
Srikkanth.M

Questions about upgrading from Exchange 2010 RTM to Exchange 2010 Service Pack 3

I am preparing to perform an maintenance upgrade on our current Exchange 2010 Server, to Service Pack 3 (and any post-SP3 roll ups), but I have a couple questions about the process.
Current Exchange Server details:
Exchange 2010 Standard
Version: 14.0 (Build 639.21) - from Exchange Management Console
Version: 14.0.702.4000 - from Outook client
Active Directory forest and domain levels: Windows 2008 R2 native
The questions I have are:
1. Can I assume that because it's version 10.0.702.4000 I am on Exchange Server 2010 RTM Update Rollup 4?
2. Can Exchange 2010 Standard RTM be patched directly to Service Pack 3, or would I need to perform incremental patches (i.e. SP1, SP2, etc.) before going to SP3?
3. Do I need to manually perform the AD domain schema prep before applying Service Pack 3, or will the Service Pack 3 update process automatically handle the modifications of the AD schema?

Hi,
Here are my answers you can refer to:
1. Firstly, I’d like to explain , we can use connection status to check our Exchange server version from Outlook client:
http://office.microsoft.com/en-in/outlook-help/determine-the-version-of-microsoft-exchange-server-my-account-connects-to-HA010117038.aspx
And I check my version from both EMC and Outlook client. It’s same.
2. We can directly update RTM version to SP3 , and the update will take an additional 30 minutes or longer per database.
3. Since Exchange 2010 SP3 makes updates to the Active Directory schema, we need prepare AD domain schema. However, it will automatically prepare AD and the domain when you install the update.
For more information, you can refer to the following article:
http://technet.microsoft.com/en-us/library/jj965774(v=exchg.141).aspx
If you have any question, please feel free to let me know.
Thanks,
Angela
Angela Shi
TechNet Community Support

Question about setting cookies and custom authentication

I have a question about setting cookies.
I have two different 'projects' in HTMLDB - we will call them App1 and App2.
I also have two different connection configurations setup in the DADs.conf file. - we will call them Connect1 and Connect2.
App1 is setup to use database authentication (no user is specified in the DAD) and uses Connect1. Once the user successfully logs in, we set a username cookie (this is a persistent connection).
We created a custom authenticatoin scheme for App2 - this scheme checks for the username cookie (set by App1). We would like for App2 to use Connect2 (HTMLDB_PUBLIC_USER is the default user specified and it uses connection pooling).
Is it possible to set a cookie from App1, Connect1 for App2, Connect2 - then redirect to App2 and pick up that cookie?
Here is an example of what we are trying to accomplish:
A user loggs into App1, we set a cookie, and the user is redirected to App2. If the cookie exists, we allow them access to the home page in App2, if no cookie, we redirect back to a 'Login Failed' page in App1. We don't want App2 to use the same database connection as App1 though, we need App2 to use connection pooling.
Is this possible? OR...Is there a better way to accomplish what we want to do?
This is an enhancement to an existing app. Our requirements are to use Database Authentication (setup where pass expires after 60 days or so, cannot reuse last 3 passwords, etc.) - which is already setup and being used by other applications in our organization. All of our users have accounts in the database. We don't want users to have a new username/pass - and we don't want to manage a separate group for HTMLDB apps.
The existing application uses HTMLDB's built in authentication - which uses database username/pass, and it uses connection pooling, but we cannot handle the pass expire stuff in it, unless there's something we're not seeing or understanding - at least that's how our DBA explained it to us.
Any help with this will be appreciated so much. I can send you the code we have if needed.
Thanks!

Same problem here. I have so many problems with this remote app. Is there an iTunes API? I would like to write my own remote app that actually works.

Question about Everyone Group in SharePoint 2013

Hi,
I have couple of question about EVERYONE group below,
         - As per the best practice which Group we should use instead of EVERYONE group in Sharepoint ?
         - What is the difference between Everyone and All Authenticated Users Group
We have added Everyone Group in different sites, now the question is if we hide this group showing up in sharepoint people picker, is there any impact interms of current site?
         - Is there any way we can hide Everyone group showing up in the people picker only for the site / Site Collection level.
Please help.
Thanks
srabon

There is no functional difference between the Everyone group and All Authenticated Users (after Active Directory has been upgraded to Server 2003 native schema).
I'm not aware of any function to hide the group from the People Picker.
Trevor Seward
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Question about document/literal web service

Hello every body.
I have some question about document/literal web service.
I’ve been working with Axis before.
Axis has four valid signatures for your message-style service methods:
public Element [] method(Element [] bodies);
public SOAPBodyElement [] method (SOAPBodyElement [] bodies);
public Document method(Document body);
public void method(SOAPEnvelope req, SOAPEnvelope resp);
The same I am trying to do with WebLogic API for webservices.
But when I am trying to test web service (public Document method (Document body); )
I have serialized exceptions for org.w3c.dom.Document.
Do I have to write a custom class for org.w3c.dom.Document serialization?
If yes can you give me some idea or example?
The all idea behind this web service is. I have just one web service and mane classes for XML processing. Depends what xml document will be during runtime, web service will be using different class for xml processing. It works fine with Axis, but in case of WebLogic I have some problem.
One more question… How I have to call this web service from java client?
I have seen this example http://www.manojc.com/?sample31 ,
but this web service looks like (Document helloDom()). I need to send Document.
This example works for Dynamic Proxy, but does not work for static call.
Any ideas?? Thank in advance.

Hi,
I am getting a similar issue. I created a Document-style/literal webservice and deployed on Weblogic 9.2 . Then I generated client stubs using clientgen. I get the following exception stack trace:
java.rmi.RemoteException: web service invoke failed: javax.xml.soap.SOAPException:
failed to serialize class java.lang.Objectweblogic.xml.schema.binding.SerializationException: type mapping lookup failure on
class=class com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl TypeMapping=TYPEMAPPING SIZE=3
ENTRY 1:
class: java.lang.Object
xsd_type: ['http://xmlns.ozarkexpress.com/business/sell']:stns:echoDocumentResponse
ser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@1125127
deser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@18dfef8
ENTRY 2:
class: java.lang.Object
xsd_type: ['http://xmlns.ozarkexpress.com/business/sell']:stns:echoDocument
ser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@15e83f9
deser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@2a5330
ENTRY 3:
class: java.lang.Object
xsd_type: ['http://www.w3.org/2001/XMLSchema']:xsd:anyType
ser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@bb7465
deser: weblogic.xml.schema.binding.internal.builtin.XSDAnyCodec@d6c16c

Question about repository

Hi
I have some questions about repositories and if anyone could answer IÂ´ll be very grateful.
What does it contains? Data or objects without data?
How does it works together with a database, I mean, when there is a DML sentence where are those changes apply? In the database, in the repository, both...
The first time you install a repository how can you insert data on it, I mean do you have to import objects from the schemas, you donÂ´t have to do it if both are in the same database...
And If any of you knows a good guide or any doc to learn more about the uses of a repository with an oracle database please tell me.
Thank you very much.
Gerardo

Oracle Designer is a CASE tool, that is, a tool for capturing and analysing requirements, designing a system and (optionally) generating it. This is all data, which is stored in the repository. Think of it as any other application.
Once analyzed, designed and modelled the deployed application will run against some other database not the repository.
I mean, do I have to do the changes on the database or in the designer toolsAs a DBA I would not expect you normally to touch the repository, except for the usual things (checking tablespace growth, etc). Are you also supposed to be the Repository administrator?
Anyway, the data model and integrity rules in the respository are very complicated and you do not want to tool around with SQL in the repository; use the Designer tools. Howvever, Oracle do provide a suite of PL/SQL packages - teh Repository API - which do allow us to manipulate the data programmatically. This can be very handy when we need to do reetitive tasks on a large number of elements.
Cheers, APC

Some basic questions about rmi registry context "bind" and "lookup"

We have more processing to do than can be accomplished with a single computer. To solve the problem I've implemented a distributed computing solution using RMI. (The first time I saw RMI was about 2 weeks ago, so please bear with me!)
The implementation is a proof of concept not a fully fleshed out system. I have one "Workunit Distributor" computer and any number of "Data Processor" computers all on the same lan segment. "Workunit Distributor" and "Data Processor" computers are both RMI client and server to each other. The "Data Processor" computers are given the ip address and name of the "Data Distributor" on the commandline when they start. They communicate their willingness to receive and process a workunit to the ""Workunit Distributor" via a RMI call. Work units are sent to available "DataProcessors" and results are eventually returned to the "WorkunitDistributor" (minutes or hours later). The model program works quite well, and appears to be capable of doing the processing we need to get done.
But now that it seems viable, I've been asked to make it a little more scalable, flexible and self configuring. In particular, instead of one "Workunit Distributor", any number of "Workunit Distributors" should be allowed to show up or disappear from the lan at any time and the system should continue to function. I've worked out a good scheme for how this can be done, but I have a couple of questions about the RMI registry (registries?). I'm trying to keep from implementing some functionality that may already be available as a library or subsystem.
With my current model design, each computer binds to its own registry with a unique name. For instance:
CRDataProcessorImpl crdpi = new CRDataProcessorImpl(svr);
Context crDataProcessingContext = new InitialContext();
crDataProcessingContext.bind("rmi:"+hostName, crdpi);
Currently the "Data Processors" get the info they need for a Context lookup() of the one and only "Workunit Distributor" from the commandline. And the info the "Workunit Distributor" needs to do a Context lookup() of a "DataProcessor" is passed to it from each "DataProcessor" via a RMI call.
But in the newer (yet to be implemented) scheme where any and all "Workunit Distributors" show up and disappear whenever they feel like, the naming bootstrapping scheme described above won't work.
I can imagine a few ways of solving this problem. For instance, having "Workunit Distributors" multicast their contact information on the lan and have a worker thread on each "Data Processor" keep track of the naming information that was multicast. Another alternative (more organized, but more complex) might be to have a dedicated host with a "well known" address and port that "Workunit Distributors" and "Data Processors" could all go to, to register or look up at an application level. Sort of a "domain name service" for RMI. But both these schemes look like a lot of work to implement , debug and maintain.
The BEST thing would be if there was one plain vanilla RMI registry that was usable by all RMI enabled computers instead of having each computer have its own local name registry. In volume 2 of the Core Java2 book it says that every registry must be local. I'm only hoping there's been progress since the book was published and now a central rmi registry is available.
If you have any ideas about this I'd like to hear what you know.
Thanks in advance for any advice.
Lenny Wintfeld
ps - I don't believe web services, as full featured as it is, is a useful alternative. I'm moving 100's (in the future possibly 1000's) of megabytes back an forth for processing.

The local bind/rebind/unbind restriction is still there and it will always be there.
I would look at
(a) RMI/IIOP, where you use COSNaming as a registry, which doesn't have that registriction, and which also has location-independent object identifiers
(b) Jini.

Question about Schemas

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