Context index and contains operator syntax how it works ?

Hi
I create a context index on four collumns (text_prof, text_gest, text_citizen, text)
of the same table content.
When i have more than one collumn being queryed using the contains syntax, oracle display the ora 29907 error saying found duplicated labels in primary invocations .
This query works:
SELECT * FROM content WHERE cod_type = '1'
AND (UPPER(title) LIKE UPPER('%tabagismo%')
OR contains (text, 'tabagismo',1)>0
This not works:
SELECT * FROM content
WHERE cod_type = '1' AND (
UPPER(title) LIKE UPPER('%tabagismo%')
OR contains (text, 'tabagismo',1)>0
OR contains (text_citizen,'tabagismo',1)>0
OR contains (text_gest,'tabagismo',1)>0
OR contains (text_prof,'tabagismo',1)>0
How can i fix it ?
I need to query all these colluns !
Does the contains operator can be used only in one collumn?
Thank´s in advance

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Trying to understand context indexes and contains-help

Hi
i am using
Achieving functionality of many preferences using one context index
to understand context indexes and contains
and i get the following
Error starting at line 1 in command:
begin
ctx_ddl.create_preference ('nd_mcds', 'multi_column_datastore');
ctx_ddl.set_attribute ('nd_mcds', 'columns', 'text nd, text text');
ctx_ddl.create_section_group ('nd_sg', 'basic_section_group');
ctx_ddl.add_ndata_section ('nd_sg', 'nd', 'nd');
ctx_ddl.create_preference ('test_lex', 'basic_lexer');
ctx_ddl.set_attribute ('test_lex', 'whitespace', '/\|-_+');
end;
Error report:
ORA-06550: line 5, column 15:
PLS-00302: component 'ADD_NDATA_SECTION' must be declared
ORA-06550: line 5, column 7:
PL/SQL: Statement ignored
06550. 00000 - "line %s, column %s:\n%s"
*Cause: Usually a PL/SQL compilation error.
*Action:
so i am using the following to check for the error
http://docs.oracle.com/cd/E18283_01/text.112/e16593/cddlpkg.htm#BABCBFCB
plus
oracle text application developer's guide
plus
oracle text reference
but these have not listed that error (i have even googled this in vain)
background::we were actually using catsearch but because of its downsides i want to implement this
Is Achieving functionality of many preferences using one context index a good place to start when one does not know about
context and contains??
please post any other useful link for contains and context index that even explains
1) fuzzy
2) stem
3) synonym
4) near
5) soundex
6)ndata
7)lexer
thanks in advance

Ndata is new to Oracle 11g. Your other posts indicate that you are using Oracle 10g, so you don't have ndata, so you get an error when you try to use it. If you want to use the 11g features that enable context indexes with contains to do all of the things that ctxcat indexes with catsearch do, then you need to upgrade to 11g.
The online documentation is searchable. Most things regarding Oracle Text are contained in either the Oracle Text Reference or the Oracle Text Application Developer's guide.
I suggest that you start with something very simple, then build from there.
The following is similar to your other post that used catsearch:
SCOTT@orcl_11gR2> CREATE TABLE mv_cat_seg_reg_prod
2 (cat_ids VARCHAR2 ( 7),
3 act_status VARCHAR2 (10),
4 name VARCHAR2 ( 1),
5 email VARCHAR2 ( 1),
6 address1 VARCHAR2 ( 1),
7 address2 VARCHAR2 ( 1),
8 contact_name VARCHAR2 ( 1),
9 mobile VARCHAR2 ( 1),
10 telephone VARCHAR2 ( 1))
11 /
Table created.
SCOTT@orcl_11gR2> INSERT ALL
2 INTO mv_cat_seg_reg_prod VALUES
3 ('1', 'Y', 'A', 'B', 'C', 'D', 'E', 'F', 'G')
4 INTO mv_cat_seg_reg_prod VALUES
5 ('2', 'N', 'H', 'I', 'J', 'K', 'L', 'M', 'N')
6 SELECT * FROM DUAL
7 /
2 rows created.
SCOTT@orcl_11gR2> CREATE INDEX mv_cat_seg_reg_prod_idx
2 ON mv_cat_seg_reg_prod (cat_ids)
3 INDEXTYPE IS CTXSYS.CONTEXT
4 /
Index created.
SCOTT@orcl_11gR2> SELECT token_text FROM dr$mv_cat_seg_reg_prod_idx$i
2 /
TOKEN_TEXT
1
2
2 rows selected.
SCOTT@orcl_11gR2> SELECT *
2 FROM (SELECT SCORE (1), name, email, address1, address2, contact_name, mobile, telephone
3 FROM mv_cat_seg_reg_prod
4 WHERE CONTAINS (cat_ids, '1', 1) > 0
5 AND act_status = 'Y'
6 ORDER BY DBMS_RANDOM.VALUE)
7 WHERE ROWNUM < 8
8 /
SCORE(1) N E A A C M T
 4 A B C D E F G
1 row selected.

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Hi,
I want to create a context index on one column which contains large text. And the table contains millions of records and daily inserts happen into the same table. My question is
1.Do we need to run any procedures after inserting the records daily?
2.Is there any problem from performace point of view creating context index on the table
Thanks,
Sri

sri333 wrote:
Hi,
I want to create a context index on one column which contains large text. And the table contains millions of records and daily inserts happen into the same table. My question is
1.Do we need to run any procedures after inserting the records daily?Not for what you describe. But you didn't describe much. I guess you will do something with this table data later. It depends from that. But since you only mentioned that you insert. Then no there is nothing to do after that.
2.Is there any problem from performace point of view creating context index on the tableSure. Creating the index takes time. If the index is there new inserts will take more time.
Edited by: Sven W. on Oct 10, 2012 12:02 PM

Context indexing and PDFs

I recently used application express to create an upload system to house word docs, Excel files and PDFs in a BLOB. I used a context index to index them and a CONTAINS query to search through the BLOB and have it find which documents contained certain words.
My Problem is some PDFs are not indexing correctly, and I wondered what limitations there were to this and if we could fix them. Has anyone else encountered this?

I am logged in as the user who owns the index.
I set a filter "token_text = 'oracle' " when I am viewing the data in the DR$TEMP_INDEX$I table and I don't get anything returned(oracle is obviously listed in the 10g product guide, but it isn't in anything else). It returns other keywords in other documents.
I am thinking it may be the embedded fonts issue? thets the only difference in the files I can see.
Message was edited by:
in3d

Context Indexes and ignoring characters

So, we're trying to get a text index to ignore apostrophe's.
insert into table values ('Arby''s');We want the above entry to be located with either of the following queries:
select *
from table
where contains(field, 'Arbys')>0and also
select *
from table
where contains(field, 'Arby''s')>0The second SQL works already, it's the former search that is finding no records. I tried adding an apostrophe to the STOPLIST, but it didn't seem to make a difference. Is there another tweak I can make, so that this works? Or am I going to need to create 2 columns, one without special characters which actually has the context index on it?
Thanks,
--=Chuck

So this is what I've setup:
SQL> begin
2
3
4
5    CTX_DDL.CREATE_STOPLIST(stoplist_name => 'TEST_APOSTROPHE',
6                            stoplist_type => 'BASIC_STOPLIST');
7
8    CTX_DDL.ADD_STOPWORD(stoplist_name => 'TEST_APOSTROPHE',
9                         stopword      => '''');
10
11
12 end;
13 /
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Table created.
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2 (NAME)
3 INDEXTYPE IS CTXSYS.CONTEXT
4 PARAMETERS('STOPLIST TEST_APOSTROPHE SYNC(ON COMMIT)');
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1 row created.
SQL> commit;
Commit complete.The following usages of CONTAINS( ) will find the record, but, they either explicitly mention the apostrophe, or, they look for the string prior to the apostrophe. I expect all of these to work regardless of the STOPLIST entry:
SQL> select * from test_apos where contains (name, 'Arby') > 0;
NAME
Arby's
SQL> select * from test_apos where contains (name, 'Arby%') > 0;
NAME
Arby's
SQL> select * from test_apos where contains (name, 'Arby''s') > 0;
NAME
Arby's
SQL> select * from test_apos where contains (name, '$(Arby)') > 0;
NAME
Arby'sNone of the following work (incl your suggestion, which I greatly appreciate, btw):
SQL> select * from test_apos where contains (name, 'Arbys') > 0;
no rows selected
SQL> select * from test_apos where contains (name, 'Arby%s') > 0;
no rows selected
SQL> select * from test_apos where contains (name, 'Arbys%') > 0;
no rows selected
SQL> select * from test_apos where contains (name, '$(Arbys)') > 0;
no rows selected--=cf

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Dear All,
I've got a problem and don't know how to solve this.
there has a table which have a XMLTYPE field to store the unstructred xml, and created with context index.
When I try to select a record from it by using contains (res, '[searchingfield]')>0, the response time is quick, but when I try to order by another field which in the same table, the response time is drop down slightly. (ex. select id, path, res, update_date from testingtbl where contains(res, 'shopper')>0 order by update_date desc.
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Substring search with Oracle context indexes

Hi,
i would like to know if it is possibile to do a substring search with one of the obtion offer with the context indexes.
(ctxcat,ctxrule,context)
example:
i would like to search the word 'berub' in a column A in table_example.
the value in the column a are :
The betther
berube
A.berube
berub
Berub
BERUB
R berube
S tartif
Y Thibeault
the rows return should be :
berube
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berub
Berub
BERUB
R berube
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How i can do this same action with the context indexes and a select (catsearch, contains, matches), if it is possible?
A example will be welcome
Thanks

I know how to do explain plan.
my point is not the query i post, it's just a example.
I have many query on my production we optimize many times (they past from 3min to 15 sec with optimisation, but we want to have better result). At this point we are looking to implant the context indexes to make them more efficient.
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Is it possible to do it and how?
This is my question and why i post it here. The query is just a simple example to illsutrate what i want.
Thanks to anyone who can answer my question.

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Hi,
I have a field for which I want to detect a case where if it is null or contains any alphabhet from a to z.
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CONSTANTS: c_valid(26) TYPE c VALUE
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Context index and contains operator syntax how it works ?

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