Problem creating Oracle text index

Hi,
I am trying to create an index in Oracle 9i using Oracle Text.
First i gave this grant as SYSDBA:
"GRANT ALL ON CTX_DDL TO <USERNAME>"
Then i executed the following :
EXECUTE CTX_DDL.CREATE_SECTION_GROUP('MYPATHGROUP','PATH_SECTION_GROUP');
CREATE INDEX SDS_SLIDE_XML_IDX ON SDS_SLIDE_DATA (SLIDE_XML)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('SECTION GROUP MYPATHGROUP');
but I got the following error :
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: Oracle Text error:
DRG-50857: oracle error in dricon.get_primary_key
ORA-00980: synonym translation is no longer valid
ORA-06512: at "CTXSYS.DRUE", line 157
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 186
Any ideas?
Rgds
Vikram.

Oracle Text will not index the content inside the portlet of the pages. The portlet is treated as a portlet instance item and only the relevant attributes are searched for, like display name of the portlet, etc.

Similar Messages

Error When Creating Oracle Text index using Lexer Keyword

Hi All,
I am getting following error when i creating oracle text index using lexer & stoplist keyword.
Pls Help me if any body know.
Thanks in Advance.
Error starting at line 1 in command:
CREATE INDEX TXT_INX_TEXT_SEARCH ON TEXT_SEARCH (BFILE_DOC)
Post INDEXTYPE IS "CTXSYS"."CONTEXT" LOCAL (
PARTITION "BEFORE_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') ,
PARTITION "Q1_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "THE_REST" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)')
Error at Command Line:1 Column:13
Error report:
SQL Error: ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: Oracle Text error:
DRG-11000: invalid keyword LEXER
ORA-06512: at "CTXSYS.DRUE", line 160
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 365
29855. 00000 - "error occurred in the execution of ODCIINDEXCREATE routine"
*Cause: Failed to successfully execute the ODCIIndexCreate routine.
*Action: Check to see if the routine has been coded correctly.
Regards,
Jack R.

Hi,
it works if you put an extra PARAMETERS clause at the end so the creation looks like:
CREATE INDEX TXT_INX_TEXT_SEARCH ON TEXT_SEARCH (BFILE_DOC)
INDEXTYPE IS "CTXSYS"."CONTEXT" LOCAL (
PARTITION "BEFORE_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') ,
PARTITION "Q1_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "THE_REST" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)')
PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') <== Added
Hope this helps
Herald ten Dam

Help with creating oracle text index on 2 columns with partial html data

Hi,
I need to create an oracle text index on 2 columns.
TITLE - varchar(255) = contains plain text data
DESCRIPTION - CLOB = contains partial HTML data
This is what I created.
begin
ctx_ddl.create_preference ('Title_Description_Pref', 'MULTI_COLUMN_DATASTORE');
ctx_ddl.set_attribute('Title_Description_Pref', 'columns', 'TITLE, DESCRIPTION');
end;
begin
ctx_ddl.create_preference ('bid_lexer', 'BASIC_LEXER');
ctx_ddl.set_attribute('bid_lexer', 'index_stems', 'ENGLISH');
ctx_ddl.create_section_group('htmgroup', 'HTML_SECTION_GROUP');
end;
create index Bid_Title_Index on Bid(title) indextype is ctxsys.context parameters ('LEXER bid_lexer sync (every "sysdate+(1/24)")');
create index Bid_Title_Desc_Index on Bid(description) indextype is ctxsys.context parameters ('LEXER bid_lexer DATASTORE Title_Description_Pref sync (every "sysdate+(1/24)") filter ctxsys.null_filter section group htmgroup');
The problem is when I do a CONTAINS(description, '$(auction)')>0. I get results where the descriptions have the "auction" word (which is correct). But, the results also returned rows where the search word is inside an IMG tag. e.g. <img src="http://auction.de/120483" alt="Auction Logo"/>.
What I would like is to exclude rows where the search word is inside HTML tag attributes, results expected are rows having <a>Auction</a> or <p>For Auction</p> ... etc. Basically stripping the html tags and leave the text contents.
I'd appreciate some input.
Thanks,
Amiel

Hi,
I need to create an oracle text index on 2 columns.
TITLE - varchar(255) = contains plain text data
DESCRIPTION - CLOB = contains partial HTML data
This is what I created.
begin
ctx_ddl.create_preference ('Title_Description_Pref', 'MULTI_COLUMN_DATASTORE');
ctx_ddl.set_attribute('Title_Description_Pref', 'columns', 'TITLE, DESCRIPTION');
end;
begin
ctx_ddl.create_preference ('bid_lexer', 'BASIC_LEXER');
ctx_ddl.set_attribute('bid_lexer', 'index_stems', 'ENGLISH');
ctx_ddl.create_section_group('htmgroup', 'HTML_SECTION_GROUP');
end;
create index Bid_Title_Index on Bid(title) indextype is ctxsys.context parameters ('LEXER bid_lexer sync (every "sysdate+(1/24)")');
create index Bid_Title_Desc_Index on Bid(description) indextype is ctxsys.context parameters ('LEXER bid_lexer DATASTORE Title_Description_Pref sync (every "sysdate+(1/24)") filter ctxsys.null_filter section group htmgroup');
The problem is when I do a CONTAINS(description, '$(auction)')>0. I get results where the descriptions have the "auction" word (which is correct). But, the results also returned rows where the search word is inside an IMG tag. e.g. <img src="http://auction.de/120483" alt="Auction Logo"/>.
What I would like is to exclude rows where the search word is inside HTML tag attributes, results expected are rows having <a>Auction</a> or <p>For Auction</p> ... etc. Basically stripping the html tags and leave the text contents.
I'd appreciate some input.
Thanks,
Amiel

Problem with oracle text indexes during import

We have a 9.2.0.6 database using oracle text features on a server with windows 2000 5.00.2195 SP4.
We need to export its data ( user ARIANE only ) and then import the result into another 9.2.0.6 database.
The import never comes to an end.
The only way to make it work is to use the "indexes=n" clause.
Then ( without the indexes ), we tried to create manually the oracle text indexes.
We get this error :
CREATE INDEX ARIANE.DOSTEXTE_DTTEXTE_CTXIDX ON ARIANE.DOSTEXTE (DTTEXTE)
INDEXTYPE IS CTXSYS.CONTEXT PARAMETERS('lexer ariane_lexer stoplist ctxsys.default_stoplist storage ariane_storage');
ORA-29855: erreur d'exécution de la routine ODCIINDEXCREATE
ORA-20000: Erreur Oracle Text :
DRG-10700: préférence inexistante : ariane_lexer
ORA-06512: à "CTXSYS.DRUE", ligne 157
ORA-06512: à "CTXSYS.TEXTINDEXMETHODS", ligne 219
We then tried to uninstall Oracle text and install it ( My Oracle Support [ID 275689.1] ). The index creation above still fails.
We also checked our Text installation and setup through My Oracle Support FAQ ( ID 153264.1 ) and everything seems ok.
Do we have to create some ARIANE* lexer preferences through specific pl/sql ( ctx_report* ? ) before importing anything from the ARIANE user ?
What do we need to do exactly when exporting data with oracle text features from one database to another given we used to restore the database through a copy of the entire windows files ?
Is there a specific order to follow to succeed an import ?
Thank you for your help.
Jean-michel, Nemours, FRANCE

Hi
index preferences are not exported, ie ariane_lexer + ariane_storage, only the Text index metada, thus the DRG-10700 from index DDL on target/import DB.
I recommend to use ctx_report.create_index_script on source/export DB, see Doc ID 189819.1 for details, export with indexes=N and then create text indexes manually after data import.
-Edwin

Trouble creating Oracle Text index

Hey all,
I am having trouble creating an Oracle Text index. I am receiving the following error when I try to sync the index after inserting numerous rows (@170,000). I have also tried to insert the rows and then create the index afterword. See below.
ORACLE_TEXT>insert into varchar_test_ot select doc from varchar_test;
171327 rows created.
Elapsed: 00:06:40.08
ORACLE_TEXT>exec ctx_ddl.sync_index('VT_TEST_IDX_OT');
BEGIN ctx_ddl.sync_index('VT_TEST_IDX_OT'); END;
ERROR at line 1:
ORA-20000: Oracle Text error:
DRG-50857: oracle error in drekmap (lob write)
ORA-22990: LOB locators cannot span transactions
ORA-06512: at "CTXSYS.DRUE", line 157
ORA-06512: at "CTXSYS.CTX_DDL", line 1328
ORA-06512: at line 1
Elapsed: 00:02:09.07

CREATE TABLE varchar_test
(doc VARCHAR2(4000)
CREATE TABLE varchar_test_ot
(doc VARCHAR2(4000)
begin
ctx_ddl.create_preference('storage_pref','BASIC_STORAGE');
ctx_ddl.set_attribute('storage_pref', 'I_TABLE_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.set_attribute('storage_pref', 'K_TABLE_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.set_attribute('storage_pref', 'R_TABLE_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.set_attribute('storage_pref', 'N_TABLE_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.set_attribute('storage_pref', 'I_INDEX_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.set_attribute('storage_pref', 'P_TABLE_CLAUSE',
'tablespace ot_test_idx_space storage (initial 1M next 1M)');
ctx_ddl.create_section_group('auto','AUTO_SECTION_GROUP');
ctx_ddl.create_preference('mywordlist', 'BASIC_WORDLIST');
ctx_ddl.set_attribute('mywordlist','SUBSTRING_INDEX', 'YES');
end;
CREATE INDEX vt_test_idx_ot
ON varchar_test_ot(doc)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS ('datastore ctxsys.default_datastore
filter ctxsys.null_filter
wordlist mywordlist
storage storage_pref
section group auto
memory 50M');

Create Oracle Text Index from Java via JDBC

Hi, I have a question relevant to creation of the Text Index in Oracle Text via Java JDBC.
In Java I create client application and I connect to remote Oracle server. (there is Oracle
10g Enterprise Edition 10.2.0.3.0 on Debian Linux OS). In Java I create query:
CREATE INDEX index_name ON source_tab(text) indextype is ctxsys.context
parameters('datastore ctxsys.file_datastore filter ctxsys.null_filter');
and I start it by:
PreparedStatement stmt = db.prepareStatement(query);
ResultSet rs = stmt.executeQuery();
There is problem that Text Index is created empty and when I write out error log then:
DRG-11513: unable to open or write to file "path"
I have on my computer Oracle XE 10g (Windows XP OS) here this application in Java functions
without problems. Without problems it´s with that same query in SQLPlus when I connect at
this remote Oracle server via PuTTY.
Do you know anybody where could be error? Or at worst case where find I more detailed
manual about JDBC Oracle mainly possible errors and problems with compatibility?

Does it work if you don't use "file_datastore"?
Eg. try the following in sqlplus:
create table t (text varchar2(2000));
insert into t values ('hello world');
create index ti on t(text) indextype is ctxsys.context;
select * from t where contains (text, 'hello') > 0;
Then drop the index ti and try the same "create index" through JDBC. Does that work?
If so, then we have some kind of issue with the file_datastore. I assume you are aware that the file will be read by the SERVER, not from the client?
So if your database resides on a Linux box, but you are calling from a Java program on a windows PC, the file names in source_tab(text) must be in Linux format, and must refer to files which are available on the Linux server (and readable by the owner of the Oracle database process).
So /home/me/file.txt might work, but C:\Documents\file.txt will not.

Error Creating Oracle Text Index giving DRG-50857: oracle error in drvxtab

Hello,
I'm trying to create an Oracle text indexd as follows:
Create index tt.idx_emp on tt.emp(emp_name)
Indextype is ctxsys.context
Parameters(‘
Datastore idx_emp_dst
Filter idx_emp_fil
Section group idx_emp_sgp
Lexer idx_emp_lex
Wordlist idx_emp_wdl
Stoplist idx_emp_spl
Storage idx_emp_sto
Sync (on commit)
But, I get the following error:
Create index tt.idx_emp
ERROR at line 1:
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: Oracle Text error:
DRG-50857: oracle error in drvxtab.create_index_tables
ORA-00905: missing keywork
ORA-06512: at “CTXSYS.DRUE”, line 160
ORA-06512: at “CTXSYS.TEXTINDEXMETHODS”, line 364
Has anyone encountered this error before? What did you do to fix this?
Thanks.

In what version?
Have you checked metalink?

Error When Creating OR Rebuilding Oracle Text index using Lexer Keyword

Hi All,
I am getting following error when i creating oracle text index using lexer & stoplist keyword.
Pls Help me if any body know.
Thanks in Advance.
Error starting at line 1 in command:
CREATE INDEX TXT_INX_TEXT_SEARCH ON TEXT_SEARCH (BFILE_DOC)
Post INDEXTYPE IS "CTXSYS"."CONTEXT" LOCAL (
PARTITION "BEFORE_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') ,
PARTITION "Q1_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "THE_REST" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)')
Error at Command Line:1 Column:13
Error report:
SQL Error: ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: Oracle Text error:
DRG-11000: invalid keyword LEXER
ORA-06512: at "CTXSYS.DRUE", line 160
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 365
29855. 00000 - "error occurred in the execution of ODCIINDEXCREATE routine"
*Cause: Failed to successfully execute the ODCIIndexCreate routine.
*Action: Check to see if the routine has been coded correctly.
Regards,
Jack R.

Hi,
it works if you put an extra PARAMETERS clause at the end so the creation looks like:
CREATE INDEX TXT_INX_TEXT_SEARCH ON TEXT_SEARCH (BFILE_DOC)
INDEXTYPE IS "CTXSYS"."CONTEXT" LOCAL (
PARTITION "BEFORE_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') ,
PARTITION "Q1_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2007" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2008" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q1_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q2_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q3_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "Q4_2009" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)'),
PARTITION "THE_REST" PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)')
PARAMETERS ('LEXER dd_lexer STOPLIST dd_stoplist SYNC (ON COMMIT)') <== Added
Hope this helps
Herald ten Dam

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.

Oracle Text indexation problem

Hello all,
we recently migrate one of our database from oracle 10.2.0.2 to an Oracle 10.2.0.4, and since then, Oracle Text indexer engine is unable to work properly.
Indexing datas systematically result in the following error :
DRG-50857: oracle error in dreii0fsh
ORA-06550: line 1, column 106:
PLS-00302: component 'S_MODE' must be declared
ORA-06550: line 1, column 10:
PL/SQL: Statement ignored
Note that datas that were indexed with the previous version of Oracle can still be found with "Select... where contains...", though new datas can't be indexed at all.
Can anybody help me with this issue ?
Edited by: methos on 11 mai 2010 06:59

See on metalink:
'DRG-50857: oracle error in dreii0fsh' when creating TEXT index [ID 750898.1]
It seems you upgraded the binaries,but not Oracle Text itself.
Werner

Oracle Text index hangs(Oracle 11g linux enterprise edition)

Hi guru,
One very criticial and showstopper issue coming in Oracle Text Indexing.
I have table ResourceTable(ResId,Contents blob ,docformat)
I am creating text index on Contents column by using follwing command:
create index [IndexName] on [TableName] (contents) indextype is ctxsys.context ('lexer mylex stoplist ctxsys.default_stoplist format column ISDOCFORMAT sync(every "sysdate+1/24") storage my_text_storage memory 200M')parallel 2
I found there is one document of text/html type which hangs oracle text indexing thread.Oracle doest not give any error message keep using CPU 100% and no progress.
I then create test table with same stucture and put this corrupted documet record in this table.and did indexing again but its not doing index /not ignoring it and hangs .We have also tried to use timeout feature of inso filter so that if such type of document comes at the time of indexing oracle text indexing process will bypass it after specific time interval but still same issue comes and oracle is not bypassing such faulty document.
This is realy show stopper issue and any kind of help will be greatly appricited.

You need to raise an SR with Oracle Support for this, and send them the file which is causing the hang. It should then be easy to investigate the problem and schedule a fix.
If you don't have a support contract, you could send the file to me and I'll raise a bug. However, if we fix it you won't be able to get the fix until it appears in the next downloadable version.
- Roger
roger.ford @ oracle.com

Oracle Text index

Hi,
I created an oracle text index on 10G database on a fairly large table (59 Mil recs) but when i go to Analyze it, i get the ora-29864 error message 'analyzing domain indexes marked LOADING/FAILED not supported'. The status of the index is valid. The index was created well over 24 hours ago. is it perhaps because the index is still loading?
Has anyone run across this problem?
Thanks

"ORA-29864: analyzing domain indexes marked LOADING/FAILED not supported
Cause: Tried to analyze a domain index which was marked as LOADING or FAILED.
Action: If the index was marked LOADING, wait till it is marked valid before retrying the analyze. If index was marked FAILED, drop it OR rebuild it and retry the analyze."

Oracle text indexed view is possible

Oracle text indexed view is possible???

ok,
My table name is T_DOC :
ID----------------> NUMBER(30)
DESCRIPTION-------> VARCHAR2(2000 BYTE)
DOC---------------> BLOB
FILENAME----------> VARCHAR2(2000 BYTE)
MIMETYPE----------> VARCHAR2(2000 BYTE)
LAST_UPDATE_DATE--> DATE
T_DOC
| Id | DESCRIPTION | DOC | FILENAME | MIMETYPE | LAST_UPDATE_DATE |
| 1 | THE DOG | *(!BLOB) | THE_CAT.PDF | application/pdf | 20/05/2010 15:06:15 |
| 2 | THE BIRD | **(!BLOB) | THE_BIRD.PDF | application/pdf | 20/05/2010 15:06:15 |
| 3 | THE HUMAN AND CAT | ***(!BLOB) | THE_HUMAN.PDF | application/pdf | 20/05/2010 15:06:15 |
* is a document .pdf with content: "the dog and cat"
** is a document .pdf with content: "the bird in house"
*** is a document .pdf with content: "the human from USA"
Index the columns DESCRIPTION, DOC (document content), FILENAME
begin
ctx_ddl.create_preference('idxDoc_lx', 'BASIC_LEXER');
ctx_ddl.set_attribute (' idxDoc_lx ', 'MIXED_CASE', 'NO');
end;
begin
ctx_ddl.create_preference('idxDoc_ds', 'MULTI_COLUMN_DATASTORE');
ctx_ddl.set_attribute ('idxDoc_ds', 'COLUMNS', 'DOC, FILENAME, DESCRIPTION');
end;
CREATE INDEX IDX_DOC
ON T_DOC (FILENAME)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS ('lexer idxDoc_lx
datastore idxDoc_ds
filter CTXSYS.AUTO_FILTER
sync (on commit)');Search Query:
select ID
from T_DOC
where CONTAINS (DOCUMENTO, 'CAT', 1) > 0 RESULT ID = 1
WHY NOT ALSO Returned ID 3 ??????

How to compute a global SCORE over a few oracle text indexed tables?

Dear experts!
I want to search a website with Oracle Text. The website consists of four tables:
- site
- chapter
- text
- binaries
Each table has two or three columns which should be indexed with oracle text. So I have created a MULTI_COLUMN_DATASTORE oracle text index on each table - So I have four indexes on my website.
When I want to search over the website I have to join my 4 tables (4 contain clauses). So how do I get a global SCORE over these 4 contains clauses?
The next question is can I change the weight of my text indexes (useful for the search hit list)? For example the highest weight has the site index, the second highest weight the chapter index and so on?
Thanks
Markus

If it's a simple JOIN, then you could just add the scores for each CONTAINS clause
select score(1)+score(2)+score(3)+score(4)
from table1 t1,table2 t2, table3 t3,table4 t4
where [join conditions]
and contains(t1.col, 'xxx', 1) > 0 or
contains(t2, col, 'xxx', 2) > 0 or
... etc
then to change the weight you just add a multiplying factor.
Can't help thinking it's probably more complex than this, though.

Why oracle text index column taking long time

why oracle text index column is taking long time to return result.I created text index on a column if I run the query on a single table result is very fast.If I join table with other table (10 records only )
it is taking long time but in explain plan it is searching by index only.
I created this index for searching a varchar2 column,the data is comma seperated values like ( UK,US,IT,BR) and the table having records 20 lakhs.Normally if I query with like operater
( like '%US%' ) it is taking full table scan because I am using '%' both sides. Please help me on this regard how to search the data with less time. Here is may sample code and explain plan.
SQL*Plus: Release 9.2.0.1.0 - Production on Wed Jan 28 16:54:22 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL> set timing on
SQL> set linesize 180
SQL> explain plan for SELECT T.esongid FROM (SELECT A.ESONGID FROM wcmedeco.EDECO_ESONGS_TERR_CTRY
A WHERE CONTAINS(A.TERR_CTRY_NAMES,'US')>0
2 GROUP BY A.ESONGID)K,T
3 WHERE K.ESONGID=T.ESONGID;
Explained.
Elapsed: 00:00:00.01
SQL> select *from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
| Id | Operation                      | Name                   | Rows | Bytes | Cost |
|   0 | SELECT STATEMENT               |                         |     1 |    26 |     4 |
|   1 | NESTED LOOPS                  |                         |     1 |    26 |     4 |
|   2 |   VIEW                         |                         |     1 |    13 |     4 |
|   3 |    SORT GROUP BY               |                         |     1 |    89 |     4 |
|   4 |     TABLE ACCESS BY INDEX ROWID| EDECO_ESONGS_TERR_CTRY |     1 |    89 |     2 |
|   5 |      DOMAIN INDEX              | IDX_TERR_CTRY_NAMES     |       |       |     0 |
|   6 |   INDEX RANGE SCAN             | IDX_ESONGID_T           |     1 |    13 |     1 |
PLAN_TABLE_OUTPUT
Note: cpu costing is off, 'PLAN_TABLE' is old version
14 rows selected.
Elapsed: 00:00:00.00
SQL> Regards,
Rajasekhar

You have not formatted your code properly so we cannot see the query you're executing. Please put some line breaks in.
Secondly, how fresh are the statistics on those tables? Are you really returning one record out of twenty million?
Cheers, APC
blog: http://radiofreetooting.blogspot.com

Problem creating Oracle text index

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