Some reference sites for Oracle Text

Hello,
I'm looking for some reference sites (other than oracle) that make use of Oracle Text in it's search facility. Can anyone help?
Thanks in advance,
Aidan

Check for Der Spiegel and OCLC in the following page:
http://oracle.com/ip/index.html?cm_home.html

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Forum site for Oracle on Windows2000 or NT

Is there any forum site for Oracle on Win2000 or NT?
Thanks.

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MultiLanguage support for Oracle Text

Hi,
We are providing multi language support in our application. So, we are using the NVarchar datatype. And we want to provide the search option for that text. So if i tried to create an index on that column it is giving the error and unable to create the index on that column. Same if tried to create an index on Char and Varchar datatypes it was successfully created the index on those columns and search is working fine.
But according to our requirements, we should provide the multi language support in our application.
Please suggest me how to create indexes on NVarchar datatype and providing the oracle text search features on that datatype.
Waiting for your favourble reply.
Thanks in advance.
Regards,
Anil.

No place in the standard docs very well. There was a note I found on it at one point, but I can't find the number at the moment. 10g new features for Text note has some info on it though. I'll look again tomorrow.
I did a lot of research on the world_lexer a few months back (wrote some info on IR & Oracle Text our newest Oracle Press book), and got some good info from the product team. One of the chapters covering Text will be made available for free and there is a diagram in there of how the world_lexer processes text. I'll post the link to the forum when it is available.
Since it doesn't require a language column, it attempts to auto-recognize the text...but not really the language. More like...the type of text it is. White-space delimited languages like English or Spanish are easy to break into tokens. Japanese & Korean are another story...no white-space delimiter. Arabic is yet another story. Those are essentially the buckets that text is thrown into for breaking into tokens when using the world_lexer.
So, where does German fall? It will be broken up similar to English. But what about the special features (like alternate spelling) that are available? Nope - sorry. It doesn't know German from French. With the multi_lexer you defined sub-lexers and told Text which records were German or French. This means that you can use more of the lang features with it. The world_lexer is much easier to implement and maintain, but it is a trade-off.
Hope that defines it a little better.

English preferences for oracle text error

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i did run the script drdefus.sql script as sysdba
and when i try to install the "Presidential Inaugural Addresses" demonstration application in HTMLDB and i got the following error.
error:------------------------------------------
ORA-20001: This demonstration can only be installed into an Oracle database which has the English preferences loaded for Oracle Text. Please contact your administrator
Can someone help me to fix this error.
Thanks,
Philip.

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Is there any reference site for 'HTMLB'?

Hi.
I just curious about ALL attribute of HTMLB
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like 'http://msdn.microsoft.com/workshop/author/html/reference/elements.asp'
this is just for HTML though.
I will apprciate if show me link for any document too.
thanks.

check out these threads
htmlb documentation
Re: Documentation for the PHTMLB library
Regards
Raja

New Wiki Site for Oracle OLAP Option

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http://wiki.oracle.com/page/Oracle+OLAP+Option
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Background and History - of the OLAP Option
Versions - Key Features of the OLAP Option (From Express Server to 11g)
Terminology - Key Concepts and Terms
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Script Samples - for DBAs managing the OLAP option.
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Oracle EMEA Consulting
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This site is fantastic and many new items are added nearly every day. Please take the time to visit the site, contribute and challenge the contributors. Many of you know Keith and the valuable information he continues to contribute to the Business Intelligence and Data Warehousing community is undeniable.
Keith has invited members of Oracle Development and Consulting to contribute so this Wiki will become an invaluable resource to those who consider using, are using or have highly technical questions about areas relevant to the Oracle OLAP option.
Oracle OLAP option - Wiki
http://wiki.oracle.com/page/Oracle+OLAP+Option
Oracle OLAP option - Blog
http://oracleolap.blogspot.com

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I have windows xp and oracle 10g.
Important file is droldus.dat..
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I have to install companion cd only for testing oracle text's themes on my computer..
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html db??oracle workflow server??i can't understand!!!Are useful in my case, or i must install it?

How to install knowledge base file for oracle text

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"All Release 2 download pages contain Oracle Companion, Client, Clusterware, Gateways, and Application Express standalone downloads"
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Pre-built Thesaurus for Oracle Text

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any advice would be appreicated

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Is possible to alter default collations for Oracle Text?

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Barbara, thank you for your reply.
The purpose was to satisfy certain requirements of arabic text search. These seem to be fulfilled by WORLD LEXER, so the case is closed.
Note that BASIC and AUTO LEXER implement differently the lexing of arabic text, with result not to be candidates for such a solution.
By the way, I tried to use skipjoins for setting an ignorable character but it did not work (auto lexer).

Process for Oracle Text

am working as a dba and we plan to introduce oracle text for text search. since I am new to this concept, I would like to know step by step implementation of Oracle text. I've searched some web sites but still not clear on the implementation part.
Please help me out

Hi,
Oracle Text is included in both standard and enterprise editions of the data server. When you are creating your database, select Oracle Text during configuration (one of the options). You will then have Oracle Text available on your database. The schema name is CTXSYS. You need to unlock this account just like any other.
To use Text, either grant permissions on the specific objects you need for the user, or use the CTXAPP role. It is up to you to know the permissions required for the objects (in other words, I can't tell you your requirements), so research this in the reference manual.
At this point, it is ready to use. Just create your indexes according to the Oracle Text Developer's Guide (you can find this with all of the documentation - look at the Application Developer's tab in Doc Library). Your search syntax depends totally on your requirements, and the type of index you choose to create. For example, the CONTEXT index uses the CONTAINS operator, and the CTXCAT index uses CATSEARCH (unless of course you want to use templates, but let's not go there just yet...).
There are two references you will want to review: The Oracle Text Developer's Guide and the Oracle Text Reference.
Hope this helps,
Ron

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Some web sites showing all text as "A" in a box?

Hard to explain but when i go to some web site all i see is lines and lines of capital "A" in a box?
It's like every letter has changed to this error icon. For example if I go to:
http://shop.orange.co.uk/newiphone
not sure if it's my system. I am all up-to-date.
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Richard...
Could be a third party font manager causing the text issue.
Try here > All I see is the letter "a": Apple Support Communities

About index memory parameter for Oracle text indexes

Hi Experts,
I am on Oracle 11.2.0.3 on Linux and have implemented Oracle Text. I am not an expert in this subject and need help about one issue. I created Oracle Text indexes with default setting. However in an oracle white paper I read that the default setting may not be right. Here is the excerpt from the white paper by Roger Ford:
URL:http://www.oracle.com/technetwork/database/enterprise-edition/index-maintenance-089308.html
"(Part of this white paper below....)
Index Memory                                  As mentioned above, cached $I entries are flushed to disk each time the indexing memory is exhausted. The default index memory at installation is a mere 12MB, which is very low. Users can specify up to 50MB at index creation time, but this is still pretty low.
This would be done by a CREATE INDEX statement something like:
CREATE INDEX myindex ON mytable(mycol) INDEXTYPE IS ctxsys.context PARAMETERS ('index memory 50M');
Allow index memory settings above 50MB, the CTXSYS user must first increase the value of the MAX_INDEX_MEMORY parameter, like this:
begin ctx_adm.set_parameter('max_index_memory', '500M'); end;
The setting for index memory should never be so high as to cause paging, as this will have a serious effect on indexing speed. On smaller dedicated systems, it is sometimes advantageous to temporarily decrease the amount of memory consumed by the Oracle SGA (for example by decreasing DB_CACHE_SIZE and/or SHARED_POOL_SIZE) during the index creation process. Once the index has been created, the SGA size can be increased again to improve query performance."
(End here from the white paper excerpt)
My question is:
1) To apply this procedure (ctx_adm.set_parameter) required me to login as CTXSYS user. Is that right? or can it be avoided and be done from the application schema? This user CTXSYS is locked by default and I had to unlock it. Is that ok to do in production?
2) What is the value that I should use for the max_index_memory should it be 500 mb - my SGA is 2 GB in Dev/ QA and 3GB in production. Also in the index creation what is the value I should set for index memory parameter - I had left that at default but how should I change now? Should it be 50MB as shown in example above?
3) The white paper also refer to rebuilding an index at some interval like once in a month:   ALTER INDEX DR$index_name$X REBUILD ONLINE;
--Is this correct advice? i would like to ask the experts once before doing that. We are on Oracle 11g and the white paper was written in 2003.
Basically while I read the paper, I am still not very clear on several aspects and need help to understand this.
Thanks,
OrauserN

Perhaps it's time I updated that paper
1. To change max_index_memory you must be a DBA user OR ctxsys. As you say, the ctxsys account is locked by default. It's usually easiest to log in as a DBA and run something like
exec ctxsys.ctx_adm.set_parameter('MAX_INDEX_MEMORY', '10G')
2. Index memory is allocated from PGA memory, not SGA memory. So the size of SGA is not relevant. If you use too high a setting your index build may fail with an error saying you have exceeded PGA_AGGREGATE_LIMIT. Of course, you can increase that parameter if necessary. Also be aware that when indexing in parallel, each parallel process will allocated up to the index memory setting.
What should it be set to? It's really a "safety" setting to prevent users grabbing too much machine memory when creating indexes. If you don't have ad-hoc users, then just set it as high as you need. In 10.1 it was limited to just under 500M, in 10.2 you can set it to any value.
The actual amount of memory used is not governed by this parameter, but by the MEMORY setting in the parameters clause of the CREATE INDEX statement. eg:
create index fooindex on foo(bar) indextype is ctxsys.context parameters ('memory 1G')
What's a good number to use for memory? Somewhere in the region of 100M to 200M is usually good.
3. No - that's out of date. To optimize your index use CTX_DDL.OPTIMIZE_INDEX. You can do that in FULL mode daily or weekly, and REBUILD mode perhaps once a month.

Reference Site for New Store Opening

I am using BAPI_MATERIAL_MAINTAINDATA_RT for taking goods from the reference site.
Like:
wa_bapie1marcrt-refmatcons = it_mara_marc-vrbmt.
wa_bapie1marcrt-refpltcons = p_rsite.
wa_bapie1marcrt-d_to_ref_m = it_mara_marc-vrbdt.
wa_bapie1marcrt-mult_ref_m = it_mara_marc-vrbfk.
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EXPORTING
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IMPORTING
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TABLES
plantdata = wa_bapie1marcrt
plantdatax = wa_bapie1marcrtx.
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I.e. before 'MAP2I_BAPIE1MARCRT_TO_MARC_UEB' function module.
And I am using 'BAPI_TRANSACTION_COMMIT' committing the changes into MARC table.
How can I come out of this problem? Please any one can suggest me.

Hi Liu,
If you have defined the reference site and assigned all respective sites to it, there is nothing to do specially for specific sites. If the purchasing data is defined for the reference site, it will automatically be adopted from reference site provided it is assigned to it.
You can proceed creating procurement data or document for this site and it will refer automatically.
If this is not what you were asking, then please provide more details of your question.
Regards,
Amit

Some reference sites for Oracle Text

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