Numeric functions in Oracle Text
Hi
Do we have numeric functions in Oracle Text, if not what we have to do for filtering/searching numeric fields
Thanx
Hari
there are no numeric functions. You search numeric information by exact string match.
Similar Messages
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Index rules in oracle text and query using matches
Dear All,
I would like to ask about rules and matches function in oracle text.
I followed an example in oracle text application developer's guide.
I have a rule table like this :
1 oracle
2 larry or ellison
3 oracle and text
4 market share
then, I create an index to that table. This is needed for calling matches function. Here is the syntax :
create index queryx on queries(query_string)
indextype is ctxsys.ctxrule;
then, I noticed that the result on DR$QUERYX$I table as follows :
LARRY 0 2 2 1 (BLOB)
MARKET 0 4 4 1 (BLOB) {MARKET} {SHARE}
ORACLE 0 1 1 1 (BLOB)
ORACLE 0 3 3 1 (BLOB) {TEXT}
ELLISON 0 2 2 1 (BLOB)
What I want to ask is why doesn't the words 'share' and 'text' appear in the DR$QUERYX$ table?
When we use matches function, it then search on the index result and consequently it wion't find the 'share' word. so when for example I do query like this :
select query_id from queries where matches(query_string,' It only share ten percent of all products sold')>0
it will give 0 result since the no word in ' It only share ten percent of all products sold' was in index table. But actually it could possibly be categorized as the 4 category which rules is 'market share'
I tried this in a larger set of data and get same result.
Here is my generated rules from my document collection :
1 {REQUIREMENTS} & {ELICITATION}
1 {REQUIREMENTS} ~ {ELICITATION} & {ACTOR}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} & {FURPS}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} & {PROC}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} & {SPEED}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} ~ {SPEED} & {DOCUME}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} ~ {SPEED} ~ {DOCUME} & {PLACED}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} ~ {SPEED} ~ {DOCUME} ~ {PLACED} & {UNNECESSARY}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} ~ {SPEED} ~ {DOCUME} ~ {PLACED} ~ {UNNECESSARY} & {MISUSE}
1 {INTERPRETATION} ~ {REQUIREMENTS}
2 {DESIGN} & {REPRESENTATION}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} & {OCTOBER}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} & {PROCEDURAL}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} ~ {PROCEDURAL} & {STRICT}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} ~ {PROCEDURAL} ~ {STRICT} & {GRASP}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} ~ {PROCEDURAL} ~ {STRICT} ~ {GRASP} & {MANY} & {LAYER}
2 {DESIGN} ~ {REPRESENTATION} ~ {MAY}
3 {PM} & {TESTING} & {ATTRIBUTI}
And this is the index table result with ctxrule :
(only the token_text column shown)
PM
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
INTERPRETATION
so when I try to classify a document with the word ouline inside it, it should produce category 1 (based on the rules) but since there are no word 'outline' in index tabel, the matches will return 0 means that the document is not classifiedto any category. I don't understand why it happen. Anybody knows about this? I would really appreciate any help.
Thank you very much.Hm, I see. It do make sense. so nice to know.
But then in the second example I gift where I used larger table, as shown below :
Here is my generated rules from my document collection :
1 {REQUIREMENTS} & {ELICITATION}
1 {REQUIREMENTS} ~ {ELICITATION} & {ACTOR}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} & {FURPS}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} & {PROC}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} & {SPEED}
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE} ~ {PROC} ~ {SPEED} & {DOCUME}
1 {INTERPRETATION} ~ {REQUIREMENTS}
2 {DESIGN} & {REPRESENTATION}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} & {OCTOBER}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} & {PROCEDURAL}
2 {DESIGN} ~ {REPRESENTATION} & {MAY} & {FOUNDATI} ~ {OCTOBER} ~ {PROCEDURAL} & {STRICT}
2 {DESIGN} ~ {REPRESENTATION} ~ {MAY}
3 {PM} & {TESTING} & {ATTRIBUTI}
As far as I know, the sign ' ~ ' means 'OR' and '&' means 'and' . So based on the 4th line in my table :
1 {REQUIREMENTS} ~ {ELICITATION} ~ {ACTOR} ~ {FURPS} ~ {OUTLINE}
it can be concluded that if any of the words stated there been queried, so the category '1' will appear as a result. But then before we can use 'matches' to query it, we need ti create index for the rules table . I did it and the result were :
(only the token_text column shown)
PM
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
REQUIREMENTS
INTERPRETATION
there were no words other than PM, DESIGN< REQUIREMENTS and INTERPRETATION. Why the words REQUIREMENTS, ELICITATION, ACTOR, FURPS, OUTLINE don't appear in the index result? -
Oracle Text Search for UCM on Standard One
I'm curious if OracleTextSearch Component for UCM would work with 11g Standard One (or if there are any limitations running UCM with Standard One). Any experiences out there - as this would be for primarily smaller instances?
As far as I can tell, that component exposes some of the functionality of Oracle Text 11g.
Looking at this feature comparison set here:
http://www.oracle.com/database/product_editions.html
It looks like the Standard Edition includes Oracle Text.
Having said that, i've used Oracle Database 11g Standard as a development platform for a while. I would think that would be just fine, considering the small amount of information supplied about your particular implemetnation, metrics baselines, etc.
-Jason Stortz
http://www.corecontentonly.com
http://www.redstonecontentsolutions.com -
Using of Oracle Text functions not working in JDev
Hi,
I'm confused about using Oracle Text functions in JDeveloper.
It's not possible for me to pass the sql syntax test while creating a view object with a custom query:
SELECT score (1) myScore,
dokumente.titel,
ctx_doc.snippet ('idx_dokumente_titel',
TO_CHAR (dokumente.dkt_id),
'searchstring'
) snippet
FROM dokumente
WHERE contains (titel, 'searchstring', 1) > 0;
I retrieve "ORA-00911: invalid character" for the contains-function.
(Using this statement in sql-worksheet works.)
Any ideas?Hi william,
Yes you need code abap to maintein your data. look at <a href="http://help.sap.com/saphelp_erp2005vp/helpdata/en/2f/696d360856e808e10000009b38f839/frameset.htm">Business Data Toolset</a>, in the part of Dialog.
Regards.
Manuel -
Oracle Text release 11.2.0.3.0 mandatory Patches (Doc ID 1386945.1)
I've been asked to draw people's attention to Support Note 1386945.1
This covers problems that some users have experienced when upgrading existing Oracle Text installations to version 11.2.0.3.
The most common problem is getting an error:
ORA-07445: exception encountered: core dump [druhfind()+370]
You could also see
ORA-20000: Oracle Text error:
DRG-50857: oracle error in textindexmethods.ODCIIndexInsert
ORA-20000: Oracle Text error:
DRG-10607: index meta data is not ready yet for queuing DML
DRG-50857: oracle error in drdmlv
ORA-01426: numeric overflow
ORA-30576: ConText Option dictionary loading error
ORA-06512: at "CTXSYS.DRUE", line 160
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 752
or
DRG-10607: index meta data is not ready yet for queuing DML
DRG-50857: oracle error in drdmlv
ORA-01426: numeric overflow
There may also be issues with IPV6 URLs and the URL data store.
The recommended fixes are:
Apply generic Patch 13258936 to fix the meta data corruption.
Apply Patch 12960302 to fix the ORA-30576, DRG-10607 and ORA-1426 errors.
Apply generic Patch 13366268 to fix the core dump in function druhfind() from 'create index' statement and the import problem. This patch contains also the fix for Bug 13352423.
Apply Patch 12985184 to fix the IPv6 url problem.
RogerHi;
Is Oracle Database 11g Release 2 (11.2.0.3.0) available for IBM AIX on POWER Systems (64-bit),Yes
Or do we need to upgrade 11.2.0.1 to 11.2.0.3.0.Please clarifyYou dont need upgrade, download patchset from metalink and start your process.
Also see:
Oracle Database on Unix AIX,HP-UX,Linux,Mac OS X,Solaris,Tru64 Unix Operating Systems Installation and Configuration Requirements Quick Reference (8.0.5 to 11.2) [ID 169706.1]
PS:Please dont forget to change thread status to answered if it possible when u belive your thread has been answered, it pretend to lose time of other forums user while they are searching open question which is not answered,thanks for understanding
Regard
Helios -
Pre-loading Oracle text in memory with Oracle 12c
There is a white paper from Roger Ford that explains how to load the Oracle index in memory : http://www.oracle.com/technetwork/database/enterprise-edition/mem-load-082296.html
In our application, Oracle 12c, we are indexing a big XML field (which is stored as XMLType with storage secure file) with the PATH_SECTION_GROUP. If I don't load the I table (DR$..$I) into memory using the technique explained in the white paper then I cannot have decent performance (and especially not predictable performance, it looks like if the blocks from the TOKEN_INFO columns are not memory then performance can fall sharply)
But after migrating to oracle 12c, I got a different problem, which I can reproduce: when I create the index it is relatively small (as seen with ctx_report.index_size) and by applying the technique from the whitepaper, I can pin the DR$ I table into memory. But as soon as I do a ctx_ddl.optimize_index('Index','REBUILD') the size becomes much bigger and I can't pin the index in memory. Not sure if it is bug or not.
What I found as work-around is to build the index with the following storage options:
ctx_ddl.create_preference('TEST_STO','BASIC_STORAGE');
ctx_ddl.set_attribute ('TEST_STO', 'BIG_IO', 'YES' );
ctx_ddl.set_attribute ('TEST_STO', 'SEPARATE_OFFSETS', 'NO' );
so that the token_info column will be stored in a secure file. Then I can change the storage of that column to put it in the keep buffer cache, and write a procedure to read the LOB so that it will be loaded in the keep cache. The size of the LOB column is more or less the same as when creating the index without the BIG_IO option but it remains constant even after a ctx_dll.optimize_index. The procedure to read the LOB and to load it into the cache is very similar to the loaddollarR procedure from the white paper.
Because of the SDATA section, there is a new DR table (S table) and an IOT on top of it. This is not documented in the white paper (the white paper was written for Oracle 10g). In my case this DR$ S table is much used, and the IOT also, but putting it in the keep cache is not as important as the token_info column of the DR I table. A final note: doing SEPARATE_OFFSETS = 'YES' was very bad in my case, the combined size of the two columns is much bigger than having only the TOKEN_INFO column and both columns are read.
Here is an example on how to reproduce the problem with the size increasing when doing ctx_optimize
1. create the table
drop table test;
CREATE TABLE test
(ID NUMBER(9,0) NOT NULL ENABLE,
XML_DATA XMLTYPE
XMLTYPE COLUMN XML_DATA STORE AS SECUREFILE BINARY XML (tablespace users disable storage in row);
2. insert a few records
insert into test values(1,'<Book><TITLE>Tale of Two Cities</TITLE>It was the best of times.<Author NAME="Charles Dickens"> Born in England in the town, Stratford_Upon_Avon </Author></Book>');
insert into test values(2,'<BOOK><TITLE>The House of Mirth</TITLE>Written in 1905<Author NAME="Edith Wharton"> Wharton was born to George Frederic Jones and Lucretia Stevens Rhinelander in New York City.</Author></BOOK>');
insert into test values(3,'<BOOK><TITLE>Age of innocence</TITLE>She got a prize for it.<Author NAME="Edith Wharton"> Wharton was born to George Frederic Jones and Lucretia Stevens Rhinelander in New York City.</Author></BOOK>');
3. create the text index
drop index i_test;
exec ctx_ddl.create_section_group('TEST_SGP','PATH_SECTION_GROUP');
begin
CTX_DDL.ADD_SDATA_SECTION(group_name => 'TEST_SGP',
section_name => 'SData_02',
tag => 'SData_02',
datatype => 'varchar2');
end;
exec ctx_ddl.create_preference('TEST_STO','BASIC_STORAGE');
exec ctx_ddl.set_attribute('TEST_STO','I_TABLE_CLAUSE','tablespace USERS storage (initial 64K)');
exec ctx_ddl.set_attribute('TEST_STO','I_INDEX_CLAUSE','tablespace USERS storage (initial 64K) compress 2');
exec ctx_ddl.set_attribute ('TEST_STO', 'BIG_IO', 'NO' );
exec ctx_ddl.set_attribute ('TEST_STO', 'SEPARATE_OFFSETS', 'NO' );
create index I_TEST
on TEST (XML_DATA)
indextype is ctxsys.context
parameters('
section group "TEST_SGP"
storage "TEST_STO"
') parallel 2;
4. check the index size
select ctx_report.index_size('I_TEST') from dual;
it says :
TOTALS FOR INDEX TEST.I_TEST
TOTAL BLOCKS ALLOCATED: 104
TOTAL BLOCKS USED: 72
TOTAL BYTES ALLOCATED: 851,968 (832.00 KB)
TOTAL BYTES USED: 589,824 (576.00 KB)
4. optimize the index
exec ctx_ddl.optimize_index('I_TEST','REBUILD');
and now recompute the size, it says
TOTALS FOR INDEX TEST.I_TEST
TOTAL BLOCKS ALLOCATED: 1112
TOTAL BLOCKS USED: 1080
TOTAL BYTES ALLOCATED: 9,109,504 (8.69 MB)
TOTAL BYTES USED: 8,847,360 (8.44 MB)
which shows that it went from 576KB to 8.44MB. With a big index the difference is not so big, but still from 14G to 19G.
5. Workaround: use the BIG_IO option, so that the token_info column of the DR$ I table will be stored in a secure file and the size will stay relatively small. Then you can load this column in the cache using a procedure similar to
alter table DR$I_TEST$I storage (buffer_pool keep);
alter table dr$i_test$i modify lob(token_info) (cache storage (buffer_pool keep));
rem: now we must read the lob so that it will be loaded in the keep buffer pool, use the prccedure below
create or replace procedure loadTokenInfo is
type c_type is ref cursor;
c2 c_type;
s varchar2(2000);
b blob;
buff varchar2(100);
siz number;
off number;
cntr number;
begin
s := 'select token_info from DR$i_test$I';
open c2 for s;
loop
fetch c2 into b;
exit when c2%notfound;
siz := 10;
off := 1;
cntr := 0;
if dbms_lob.getlength(b) > 0 then
begin
loop
dbms_lob.read(b, siz, off, buff);
cntr := cntr + 1;
off := off + 4096;
end loop;
exception when no_data_found then
if cntr > 0 then
dbms_output.put_line('4K chunks fetched: '||cntr);
end if;
end;
end if;
end loop;
end;
Rgds, PierreI have been working a lot on that issue recently, I can give some more info.
First I totally agree with you, I don't like to use the keep_pool and I would love to avoid it. On the other hand, we have a specific use case : 90% of the activity in the DB is done by queuing and dbms_scheduler jobs where response time does not matter. All those processes are probably filling the buffer cache. We have a customer facing application that uses the text index to search the database : performance is critical for them.
What kind of performance do you have with your application ?
In my case, I have learned the hard way that having the index in memory (the DR$I table in fact) is the key : if it is not, then performance is poor. I find it reasonable to pin the DR$I table in memory and if you look at competitors this is what they do. With MongoDB they explicitly says that the index must be in memory. With elasticsearch, they use JVM's that are also in memory. And effectively, if you look at the awr report, you will see that Oracle is continuously accessing the DR$I table, there is a SQL similar to
SELECT /*+ DYNAMIC_SAMPLING(0) INDEX(i) */
TOKEN_FIRST, TOKEN_LAST, TOKEN_COUNT, ROWID
FROM DR$idxname$I
WHERE TOKEN_TEXT = :word AND TOKEN_TYPE = :wtype
ORDER BY TOKEN_TEXT, TOKEN_TYPE, TOKEN_FIRST
which is continuously done.
I think that the algorithm used by Oracle to keep blocks in cache is too complex. A just realized that in 12.1.0.2 (was released last week) there is finally a "killer" functionality, the in-memory parameters, with which you can pin tables or columns in memory with compression, etc. this looks ideal for the text index, I hope that R. Ford will finally update his white paper :-)
But my other problem was that the optimize_index in REBUILD mode caused the DR$I table to double in size : it seems crazy that this was closed as not a bug but it was and I can't do anything about it. It is a bug in my opinion, because the create index command and "alter index rebuild" command both result in a much smaller index, so why would the guys that developped the optimize function (is it another team, using another algorithm ?) make the index two times bigger ?
And for that the track I have been following is to put the index in a 16K tablespace : in this case the space used by the index remains more or less flat (increases but much more reasonably). The difficulty here is to pin the index in memory because the trick of R. Ford was not working anymore.
What worked:
first set the keep_pool to zero and set the db_16k_cache_size to instead. Then change the storage preference to make sure that everything you want to cache (mostly the DR$I) table come in the tablespace with the non-standard block size of 16k.
Then comes the tricky part : the pre-loading of the data in the buffer cache. The problem is that with Oracle 12c, Oracle will use direct_path_read for FTS which basically means that it bypasses the cache and read directory from file to the PGA !!! There is an event to avoid that, I was lucky to find it on a blog (I can't remember which, sorry for the credit).
I ended-up doing that. the events to 10949 is to avoid the direct path reads issue.
alter session set events '10949 trace name context forever, level 1';
alter table DR#idxname0001$I cache;
alter table DR#idxname0002$I cache;
alter table DR#idxname0003$I cache;
SELECT /*+ FULL(ITAB) CACHE(ITAB) */ SUM(TOKEN_COUNT), SUM(LENGTH(TOKEN_INFO)) FROM DR#idxname0001$I;
SELECT /*+ FULL(ITAB) CACHE(ITAB) */ SUM(TOKEN_COUNT), SUM(LENGTH(TOKEN_INFO)) FROM DR#idxname0002$I;
SELECT /*+ FULL(ITAB) CACHE(ITAB) */ SUM(TOKEN_COUNT), SUM(LENGTH(TOKEN_INFO)) FROM DR#idxname0003$I;
SELECT /*+ INDEX(ITAB) CACHE(ITAB) */ SUM(LENGTH(TOKEN_TEXT)) FROM DR#idxname0001$I ITAB;
SELECT /*+ INDEX(ITAB) CACHE(ITAB) */ SUM(LENGTH(TOKEN_TEXT)) FROM DR#idxname0002$I ITAB;
SELECT /*+ INDEX(ITAB) CACHE(ITAB) */ SUM(LENGTH(TOKEN_TEXT)) FROM DR#idxname0003$I ITAB;
It worked. With a big relief I expected to take some time out, but there was a last surprise. The command
exec ctx_ddl.optimize_index(idx_name=>'idxname',part_name=>'partname',optlevel=>'REBUILD');
gqve the following
ERROR at line 1:
ORA-20000: Oracle Text error:
DRG-50857: oracle error in drftoptrebxch
ORA-14097: column type or size mismatch in ALTER TABLE EXCHANGE PARTITION
ORA-06512: at "CTXSYS.DRUE", line 160
ORA-06512: at "CTXSYS.CTX_DDL", line 1141
ORA-06512: at line 1
Which is very much exactly described in a metalink note 1645634.1 but in the case of a non-partitioned index. The work-around given seemed very logical but it did not work in the case of a partitioned index. After experimenting, I found out that the bug occurs when the partitioned index is created with dbms_pclxutil.build_part_index procedure (this enables enables intra-partition parallelism in the index creation process). This is a very annoying and stupid bug, maybe there is a work-around, but did not find it on metalink
Other points of attention with the text index creation (stuff that surprised me at first !) ;
- if you use the dbms_pclxutil package, then the ctx_output logging does not work, because the index is created immediately and then populated in the background via dbms_jobs.
- this in combination with the fact that if you are on a RAC, you won't see any activity on the box can be very frightening : this is because oracle can choose to start the workers on the other node.
I understand much better how the text indexing works, I think it is a great technology which can scale via partitioning. But like always the design of the application is crucial, most of our problems come from the fact that we did not choose the right sectioning (we choosed PATH_SECTION_GROUP while XML_SECTION_GROUP is so much better IMO). Maybe later I can convince the dev to change the sectionining, especially because SDATA and MDATA section are not supported with PATCH_SECTION_GROUP (although it seems to work, even though we had one occurence of a bad result linked to the existence of SDATA in the index definition). Also the whole problematic of mixed structured/unstructured searches is completly tackled if one use XML_SECTION_GROUP with MDATA/SDATA (but of course the app was written for Oracle 10...)
Regards, Pierre -
Using Numeric Keypad In Oracle Forms 6i
Dear All,
I am facing some problems when I am Working with Numeric Keypad on Oracle Forms 6i.
I have 10 Buttons and In Every Button Property I have defined the "Access Key".
e.g
Buttons | Property | Value
Button1 | Access Key | "1"
Button2 | Access Key | "2"
Button3 | Access Key | "3"
Button4 | Access Key | "4"
Button5 | Access Key | "5"
Button6 | Access Key | "6"
Button7 | Access Key | "7"
Button8 | Access Key | "8"
Button9 | Access Key | "9"
Button0 | Access Key | "0"Example : When I will Press Only "1" Using Numeric Keypad, Message Window will appear with the Message "You have Pressed 1..."
All Buttons are functioning Properly when I Pressing (One Key Stroke) 1,2,3,4,5,6,7,8,9,0 using Numeric KeyPad.
But I am not able to apply this Technique on "*" , "/" , "-" , "+" , "." , "Num Lock".
How Can I utilize these Characters(*,-,+,/,NumLock) in my application to perform a certain task using Single Key Stroke through Buttons or any other way in Oracle Forms 6i.
Note : We don't want to give Keyboard / Mouse to User. We have given a Numeric KeyPad to the User for a Certain Task.
Thanks in AdvanceIt works for me on 10g but the only pitfall is the " * ", the workaround is to use the " & " in the label next to the key you want.
for example:
Button* label &*
Button- label &-
Button/ label &/
Button+ label &+
Button. label &.Try it
Tony -
Use T-SQL functions in ORACLE too, so you can write one script version that works in SYBASE, SQLSERVER and ORACLE when need to use the following functions:
ceiling, charindex, dateadd, datediff, datename, datepart, day, db_id, db_name, getdate, host_id, host_name, left, len, month, replicate, right, space, str, str_replace, stuff, substring, suser_id, suser_name, user_id, user_name and year.
The file [comp_tsql_ORA_schema.txt|http://forums.databasejournal.com/attachment.php?attachmentid=564&d=1258547015] creates the tablespace and schema to put the objects, and the file [comp_tsql_ORA.txt|http://forums.databasejournal.com/attachment.php?attachmentid=569&d=1259256898] creates the functions into the new schema. They will be avaliable for any schema of the oracle instance.
Hope this help!
Any suggestion please contact.
aklein2003
Edited by: user1958693 on 26/11/2009 10:16jgarry wrote:
J2EE beta released around 1999. Religious programming wars far preceded that. Here's but [one example|http://groups.google.com/group/comp.lang.lisp/browse_thread/thread/1c50bc13e9302f00/34bb8f3ac77e2388?q=programming+language+religion#34bb8f3ac77e2388] from a quick google. I'm no longer convinced that elegance is a desirable trait for a language. So call me a heretic.
Ever tried XLISP? :-)
It's different. Back then it was simply the language itself. And it was not really a religious kind of battle, but more a mine-is-bigger-and-better-than-yours one.
With Java, it is all about The Acrhitecture and the blessed language of Java. ;-)
I wouldn't so much blame J2EE believers for that. I think there is a fundamental complexity to web type paradigms that hasn't been described in a precise and encompassing enough manner to enable correct project planning.The basic problem is that the database is treated as a persistent storage layer only. A bit bucket. And that is exactly what a database is not.
But as it is used that, loads of database features now need to be duplicated in the application layer. Which is done. Very poorly.
Heck, I've even been told that J2EE's 3-tier architecture is not client server. Such ignorance is really unbelievable. Or is it pure stupidity?Until you just made me look it up, I would have thought that too, I'm sure I saw client/server defined as two-tier in the last century. But I have much more stupid misdefinitions to deal with on a daily basis, simply from the multiplicity of paradigms. I tend to retreat into my shell. Hehehe. Know that feeling... These days I rather run away, or set shields to full power, than try to get in yet another frustrating, fruitless and futile discussion with a Java head about the wonders of the J2EE architecture. Or trying to explain that this "new" architecture is predated with what we used in the 80's on mainframe systems with transaction monitors, block devices (the 80's web browsers) and databases - which software layer for software layer was almost identical to "+The Great Architecture+" of today. (and we did it without buzzwords too) ;-)
Client-server is a software architecture and in essence describes 3 basic software components. The User Interface (UI), the Application (APP) and the Database (DB). And there are various ways to put these components together in a client-server architecture. The mistake that the Java fanbois make is thinking that client-server means having the client as the UI and APP as a single component (so-called fat client) and then the DB component as the server.
There are numerous versions of these - including the APP component being a server component (as we now these days more commonly used in over the web).
My beef with the J2EE "+religion+" always has been that client-server is client-server. The fundamentals stay the same. -
Oracle text related internal procedure taking a lot of time in our Production database
Hi,
I am on Oracle 11.2.0.2 on Linux. I have Oracle Text implemented in all my databases for fuzzy search. I am seeing the following Oracle TExt specific internal procedure to be among the Top SQL in my AWR in production. This is during business time.
SQL ordered by Elapsed Time
Resources reported for PL/SQL code includes the resources used by
all SQL statements called by the code.
% Total DB Time is the Elapsed Time of the SQL statement divided
into the Total Database Time multiplied by 100
%Total - Elapsed Time as a percentage of Total DB time
%CPU - CPU Time as a percentage of Elapsed Time
%IO - User I/O Time as a percentage of Elapsed Time
Captured SQL account for 59.3% of Total DB Time (s): 120,379
Captured PL/SQL account for 33.8% of Total DB Time (s): 120,379
Elapsed Time (s)
Executions
Elapsed Time per Exec (s)
%Total
%CPU
%IO
SQL Id
SQL Module
SQL Text
23,476.22
205,095
0.11
19.50
16.21
7.88
ddr8uck5s5kp3
begin ctxsys.drvdml.com_sync_i...
Note that the sql id ddr8uck5s5kp3 has this sql:
begin ctxsys.drvdml.com_sync_index(:idxname, :idxmem, :partname); end;
Also note that I have the procedure to optimize the indexes (ctx_ddl.optimize_index in FULL mode) set up every night to run at 3 am for all our Oracle Text indexes. Is there anything else needed. I don't know why the procedure I showed above in the AWR report takes so much time and why it is among our Top sql.
I will be very thankful for guidance in this regard.
Thanks,
OrauserNThis is the internal call which drives the SYNC call for a text index. Effectively all the indexing of new and updated data in your text-indexed table is contained within this call.
If you're using parallel SYNC you will see this call contained with a SELECT query - that select is executed as a parallel query on a table function, which is the way we divide up the work between parallel slaves. -
Using oracle text on a non-materialized view
I'm having trouble tracking down an error when using oracle text on a non-materialized view (indexes are on the referenced columns). My database has a users table and a user history table which saves the old values when a user profile changes. My view performs a "union all" so I can select from both at once.
I would like to use oracle text to perform a "contains" on the view whenever someone signs up to see if any current users or historical entries contain the desired username.
The following works fine:
contains(user_history_view, 'bill')but when I reference anything in the contains clause, i get a "column is not indexed" error:
contains(user_history_view, signup.user_name) --signup.username is 'bill'Here is a stripped-down demonstration (I am using version 10.2.0.4.0)
create table signup (
signup_id number(19,0) not null,
signup_name varchar2(255),
primary key (signup_id)
create table users (
user_id number(19,0) not null,
user_name varchar2(255),
primary key (user_id)
create table user_history (
history_id number(19,0) not null,
user_id number(19,0) not null,
user_name varchar2(255),
primary key (history_id),
foreign key (user_id) references users on delete set null
create index user_name_index on users(user_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create index user_hist_name_index on user_history(user_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create index signup_name_index on signup(signup_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create or replace force view user_history_view
(user_id, user_name, flag_history) as
select user_id, user_name, 'N' from users
union all
select user_id, user_name, 'Y' from user_history;
--user bill changed his name to bob, and there is a pending signup for another bill
insert into users(user_id, user_name) values (1, 'bob');
insert into user_history(history_id, user_id, user_name) values (1, 1, 'bill');
insert into signup(signup_id, signup_name) values(1, 'bill');
commit;
--works
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and contains(users.user_name, 'bill')>0;
--fails
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and contains(users.user_name, new_user.signup_name)>0;I could move everything into a materialized view, but querying against real-time data like this would be ideal. Any help would be greatly appreciated.Hi,
this is to my knowledge not possible. It is hard for Oracle to do, think about a table with many rows, every row with that column must be checked. So I think only a single varchar2 is possible. Maybe for you will a function work. It is possible to give a function as second parameter.
function return_signup
return varchar2
is
l_signup_name signup.signup_name%type;
begin
select signup_name
into l_signup_name
from signup
where signup_id = 1
and rownum = 1
return l_signup_name;
exception
when no_data_found
then
l_signup_name := 'abracadabra'; -- hope does not exist
return l_signup_name;
end;Now you can use above function in the contains.
select * from user_history_view users --, signup new_user
--where new_user.signup_id = 1
where contains(users.user_name, return_signup)>0;I didn't test the code! Maybe you have to adjust the function for your needs. But it is a idea how this can be done.
Otherwise you must make the check by normaly check the columns by simple using a join:
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and users.user_name = new_user.signup_name;Herald ten Dam
htendam.wordpress.com -
Hello
Tried the Oracle White Paper - Oracle Text Web Applications
Created the table and populated with relevant url links
create table htmldb_documentation(
id number,
doc_title varchar2(4000),
doc_url varchar2(4000))
then created the index
create index htmldb_doc_ctxidx on htmldb_documentation(doc_url)
indextype is ctxsys.context
parameters ('datastore CTXSYS.URL_DATASTORE')
Then ran my SQL for the report in Toad and APEX SQL Workshop>SQL Commands before creating an APEX Region based on a SQL Report
select score(1) relevance, doc_title, doc_url
from htmldb_documentation
where CONTAINS (doc_url, :P1_SEARCH, 1) > 0
order by 1 desc
After running the APEX Report I get error
report error:
ORA-29902: error in executing ODCIIndexStart() routine
ORA-20000: Oracle Text error:
DRG-50901: text query parser syntax error on line 1, column 1
I also ran these grant commands after I received this error
grant ctxapp to demo;
grant execute on ctx_cls to demo;
grant execute on ctx_ddl to demo;
grant execute on ctx_doc to demo;
grant execute on ctx_output to demo;
grant execute on ctx_query to demo;
grant execute on ctx_report to demo;
grant execute on ctx_thes to demo;
grant execute on ctx_ulexer to demo;
Any ideas ?? I'm running APEX 3.1.0.00.32 on Oracle 10.2.0.1 on WindowsXP
If I replace the bind variable :P1_SEARCH, with a literal value the error disappearsCouple of things to check:
1) do you have an item called P1_SEARCH in your application?
2) If so, make sure that it has a value; otherwise, Oracle Text gets confused and will throw that error.
You may want to consider using a PL/SQL Function Returning SQL Query that will only append the CONTAINS clause if P1_SEARCH has some value.
Thanks,
- Scott -
http://sumnertechnologies.com
http://spendolini.blogspot.com -
I'm storing files in a blob field in a 9i database, sometimes I need to query using the details stored in the database about the file and sometimes I need to search the files to find matches with some text (like search engine), I was told that oracle text can help me accomplish this functionality , however I don't know if it supports arabic text and I don't know how to use it from my application developed in 9i.
Regards.Friend by using these step you can easily use Oracle inter text media
j a h a n z e b
[email protected]
Oracle Developer
6th Floor, State Bank of Pakistan
I.I.Chundrigar Road, Karachi.
Please note that in SqlPlus you can use '?' in stead of $ORACLE_HOME, and this works on Unix and Windows so if you want to execute $ORACLE_HOME/rdbms/admin/catalog.sql you can simply use:
on Unix sql> @?/rdbms/admin/catalog.sql
on Windows sql> @?\rdbms\admin\catalog.sql
5.2.1 Explanation of installation steps
1. Connected to database as SYSDBA and create CTXSYS user:
Ctxsys user is created by calling following script:
@?/ctx/admin/dr0csys.sql <ctxsys> <system> <temp>
Where:
change_on_install - is the ctxsys user password
DRSYS - is the default tablespace for ctxsys
TEMP - is the temporary tablespace for ctxsys
This will create user CTXSYS and grants full privileges to CTXSYS in order to create and insert into result tables, execute callbacks, rewrite queries, and perform system cleanup. At this point CTXSYS will not own any objects.ss
2. Connected to database as CTXSYS and create all necessary objects
All necessary object are creates by calling following script:
connect CTXSYS/change_on_install
@?/ctx/admin/dr0inst <replace with $ORACLE_HOME>/ctx/lib/libctxx9.so;
Please not that you have to put full path to your ORACLE_HOME, for example home as paramter
On Solaris/Aix/Linux with $ORACLE_HOME of /u01/app/oracle/product/8.1.7
@?/ctx/admin/dr0inst.sql /u01/app/oracle/product/8.1.7/ctx/lib/libctxx8.so
On HP-UX with $ORACLE_HOME of /u01/app/oracle/product/8.1.7
@?/ctx/admin/dr0inst.sql /u01/app/oracle/product/8.1.7/ctx/lib/libctxx8.sl
Windows NT/2000 with D:\oracle\product\8.1.7
@?/ctx/admin/dr0inst.sql D:\oracle\product\8.1.7\bin\oractxx8.dll
This will installs all Oracle database objects required by the Oracle Text system. This includes:
a) Data dictionary tables, views, sequence, packages
b) Server management tables, views and packages
c) Dispatcher packages
d) Service queue objects
3) Install appropriate language-specific default preferences.
The next step is to install appropriate language-specific default preferences.When you use CREATE INDEX to create an index or ALTER INDEX to manage an index, you can optionally specify indexing preferences in the parameter string. There are seven preference classes:
- Lexer, defines the language being indexed. ( language specific )
- Wordlist, defines the expantion of stem and fuzzy queries. ( language specific )
- Stoplist, defines words and themes that are not be indexed. ( language specific )
- Datastore, defines document storage.
- Filter, defines standards for converion of documents to plaintext.
- Storage, defines the storage of the index tables.
- Section group, enables possibilities to define document sections.
There is script which creates language-specific default preferences for every language Oracle text supports in <ORACLE_HOME>/ctx/admin/defaults directory, such as English(US), Danish(DK), Dutch(NL), Finnish(SF), French(FR), German(DE), Italian(IT), Portuguese(PR), Spanish(ES), and Swedish(S). They are named in the form drdefXX.sql, where XX is the language code. To manually install US default preferences, for example, log into sqlplus as CTXSYS, and run 'drdefus.sql' as described below:
@?/ctx/admin/defaults/drdefus.sql
create user textuser identified by textuser
default tablespace users
temporary tablespace temp;
-- You must grant 'ctxapp' role to textuser
grant connect, resource, ctxapp to textuser;
connect textuser/textuser
drop table quick;
create table quick (
quick_id number
constraint quick_pk primary key,
text varchar2(80) );
insert into quick ( quick_id, text ) values (1,'The cat sat on the mat');
insert into quick ( quick_id, text ) values (2,'The quick brown fox jumps over the lazy dog' );
insert into quick ( quick_id, text ) values (3,'The dog barked like a dog');
commit;
create index quick_text on quick ( text )
indextype is ctxsys.context;
col text format a45
col s format 999
select text, score(42) s from quick
where contains ( text, 'dog', 42 ) > 0
order by s desc; -
Is Oracle Text the right solution for this need of a specific search!
Hi ,
We are on Oracle 11.2.0.2 on Solaris 10. We have the need to be able to do search on data that are having diacritical marks and we should be able to do the serach ignoring this diacritical marks. That is the requirement. Now I got to hear that Oracle Text has a preference called BASIC_LEXER which can bypass the diacritical marks and so solely due to this feature I implemented Oracle Text and just for this diacritical search and no other need.
I mean I set up preference like this:
ctxsys.ctx_ddl.create_preference ('cust_lexer', 'BASIC_LEXER');
ctxsys.ctx_ddl.set_attribute ('cust_lexer', 'base_letter', 'YES'); -- removes diacritics
With this I set up like this:
CREATE TABLE TEXT_TEST
NAME VARCHAR2(255 BYTE)
--created Oracle Text index
CREATE INDEX TEXT_TEST_IDX1 ON TEXT_TEST
(NAME)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('LEXER cust_lexer WORDLIST cust_wl SYNC (ON COMMIT)');
--sample data to illustrate the problem
Insert into TEXT_TEST
(NAME)
Values
('muller');
Insert into TEXT_TEST
(NAME)
Values
('müller');
Insert into TEXT_TEST
(NAME)
Values
('MULLER');
Insert into TEXT_TEST
(NAME)
Values
('MÜLLER');
Insert into TEXT_TEST
(NAME)
Values
('PAUL HERNANDEZ');
Insert into TEXT_TEST
(NAME)
Values
('CHRISTOPHER Phil');
COMMIT;
--Now there is an alternative solution that is there, instead of thee Oracle Text which is just a plain function given below (and it seems to work neat for my simple need of removing diacritical characters effect in search)
--I need to evaluate which is better given my specific needs -the function below or Oracle Text.
CREATE OR REPLACE FUNCTION remove_dia(p_value IN VARCHAR2, p_doUpper IN VARCHAR2 := 'Y')
RETURN VARCHAR2 DETERMINISTIC
IS
OUTPUT_STR VARCHAR2(4000);
begin
IF (p_doUpper = 'Y') THEN
OUTPUT_STR := UPPER(p_value);
ELSE
OUTPUT_STR := p_value;
END IF;
OUTPUT_STR := TRANSLATE(OUTPUT_STR,'ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüýÿ', 'AAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy');
RETURN (OUTPUT_STR);
end;
--now I query for which name stats with a P%:
--Below query gets me unexpected result of one row as I am using Oracle Text where each word is parsed for search using CONTAINS...
SQL> select * from text_test where contains(name,'P%')>0;
NAME
PAUL HERNANDEZ
CHRISTOPHER Phil
--Below query gets me the right and expected result of one row...
SQL> select * from text_test where name like 'P%';
NAME
PAUL HERNANDEZ
--Below query gets me the right and expected result of one row...
SQL> select * from text_test where remove_dia(name) like remove_dia('P%');
NAME
PAUL HERNANDEZMy entire need was only to be able to do a search that bypasses diacritical characters. To implement Oracle Text for that reason, I am wondering if that was the right choice! More so when I am now finding that the functionality of LIKE is not available in Oracle Text - the Oracle text search are based on tokens or words and they are different from output of the LIKE operator. So may be should I have just used a simple function like below and used that for my purpose instead of using Oracle Text:
This function (remove_dia) just removes the diacritical characters and may be for my need this is all that is needed. Can someone help to review that given my need I am better of not using Oracle Text? I need to continue using the functionality of Like operator and also need to bypass diacritical characters so the simple function that I have meets my need whereas Oracle Text causes a change in behaviour of search queries.
Thanks,
OrauserNIf all you need is LIKE functionality and you do not need any of the complex search capabilities of Oracle Text, then I would not use Oracle Text. I would create a function-based index on your name column that uses your function that removes the diacritical marks, so that your searches will be faster. Please see the demonstration below.
SCOTT@orcl_11gR2> CREATE TABLE TEXT_TEST
2 (NAME VARCHAR2(255 BYTE))
3 /
Table created.
SCOTT@orcl_11gR2> Insert all
2 into TEXT_TEST (NAME) Values ('muller')
3 into TEXT_TEST (NAME) Values ('müller')
4 into TEXT_TEST (NAME) Values ('MULLER')
5 into TEXT_TEST (NAME) Values ('MÜLLER')
6 into TEXT_TEST (NAME) Values ('PAUL HERNANDEZ')
7 into TEXT_TEST (NAME) Values ('CHRISTOPHER Phil')
8 select * from dual
9 /
6 rows created.
SCOTT@orcl_11gR2> CREATE OR REPLACE FUNCTION remove_dia
2 (p_value IN VARCHAR2,
3 p_doUpper IN VARCHAR2 := 'Y')
4 RETURN VARCHAR2 DETERMINISTIC
5 IS
6 OUTPUT_STR VARCHAR2(4000);
7 begin
8 IF (p_doUpper = 'Y') THEN
9 OUTPUT_STR := UPPER(p_value);
10 ELSE
11 OUTPUT_STR := p_value;
12 END IF;
13 RETURN
14 TRANSLATE
15 (OUTPUT_STR,
16 'ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüýÿ',
17 'AAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy');
18 end;
19 /
Function created.
SCOTT@orcl_11gR2> show errors
No errors.
SCOTT@orcl_11gR2> CREATE INDEX text_test_remove_dia_name
2 ON text_test (remove_dia (name))
3 /
Index created.
SCOTT@orcl_11gR2> set autotrace on explain
SCOTT@orcl_11gR2> select * from text_test
2 where remove_dia (name) like remove_dia ('mü%')
3 /
NAME
muller
müller
MULLER
MÜLLER
4 rows selected.
Execution Plan
Plan hash value: 3139591283
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 2131 | 2 (0)| 00:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| TEXT_TEST | 1 | 2131 | 2 (0)| 00:00:01 |
|* 2 | INDEX RANGE SCAN | TEXT_TEST_REMOVE_DIA_NAME | 1 | | 1 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('mü%'))
filter("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('mü%'))
Note
- dynamic sampling used for this statement (level=2)
SCOTT@orcl_11gR2> select * from text_test
2 where remove_dia (name) like remove_dia ('P%')
3 /
NAME
PAUL HERNANDEZ
1 row selected.
Execution Plan
Plan hash value: 3139591283
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 2131 | 2 (0)| 00:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| TEXT_TEST | 1 | 2131 | 2 (0)| 00:00:01 |
|* 2 | INDEX RANGE SCAN | TEXT_TEST_REMOVE_DIA_NAME | 1 | | 1 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('P%'))
filter("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('P%'))
Note
- dynamic sampling used for this statement (level=2)
SCOTT@orcl_11gR2> -
How I work with MS-SQL function in oracle
I’m working in oracle now but I don’t know how can I use following function in oracle.
convert, dateadd, datediff, fetch_status, isnumeric, reverse, str and stuffAlso available in 10g, the model clause version, taken from this How to display text in reverse order ?.
WITH t AS (SELECT 'abcdefg' col1
FROM DUAL
UNION
SELECT ''
FROM DUAL )
SELECT col1
, new_col1
FROM t
MODEL
PARTITION BY (ROWNUM rn)
DIMENSION BY (0 dim)
MEASURES (col1, CAST ('' AS VARCHAR2(255)) new_col1)
RULES ITERATE(99) UNTIL (LENGTH(new_col1[0]) = LENGTH(col1[0]))
(new_col1[0] = SUBSTR(col1[0], ITERATION_NUMBER + 1, 1) || new_col1[0])
COL1 NEW_COL1
abcdefg gfedcbaC. -
Dear Professionals,
I am using oracle text functionality(11g).
Is there any way to replace '-' with space and search the as full text as '18005-12220',or partial(either 18005 or 12220 ) as keyword.
case 1)
select * from search_table where CONTAINS(searchdata,'18005\-12220')>0;
o/p=>18005-12220 xyz abc address 145
case 2)
select * from search_table where CONTAINS(searchdata,'18005')>0;
o/p=>no rows
case 3)
select * from search_table where CONTAINS(searchdata,'12220')>0;
o/p=>no rows
BEGIN
ctx_ddl.create_preference ('SUBSTRING_PREF', 'BASIC_WORDLIST');
ctx_ddl.set_attribute ('SUBSTRING_PREF', 'substring_index', 'YES');
ctx_ddl.set_attribute ('SUBSTRING_PREF', 'prefix_index', 'YES');
ctx_ddl.set_attribute ('SUBSTRING_PREF', 'prefix_min_length', 1);
ctx_ddl.set_attribute ('SUBSTRING_PREF', 'prefix_max_length', 10);
ctx_ddl.set_attribute ('SUBSTRING_PREF', 'WILDCARD_MAXTERMS', 10000);
ctx_ddl.create_preference('mylex', 'BASIC_LEXER');
ctx_ddl.set_attribute('mylex', 'printjoins', '_-');
Ctx_Ddl.Set_Attribute ( 'mylex', 'index_themes', 'FALSE');
Ctx_Ddl.Create_Preference('my_text_storage', 'BASIC_STORAGE');
ctx_ddl.set_attribute('my_text_storage','I_TABLE_CLAUSE', 'tablespace users storage (initial 10M next 10M)');
ctx_ddl.set_attribute('my_text_storage', 'K_TABLE_CLAUSE', 'tablespace users storage (initial 10M next 10M)');
ctx_ddl.set_attribute('my_text_storage', 'R_TABLE_CLAUSE', 'tablespace users storage (initial 10M) lob (data) store as (cache)');
ctx_ddl.set_attribute('my_text_storage', 'N_TABLE_CLAUSE', 'tablespace users storage (initial 1M)');
ctx_ddl.set_attribute('my_text_storage', 'I_INDEX_CLAUSE', 'tablespace users storage (initial 1M) compress 2');
ctx_ddl.set_attribute('my_text_storage', 'P_TABLE_CLAUSE', 'tablespace users storage (initial 1M)');
END;thanks Roger Ford for your valuable suggestion.problem is resolved now.
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