OODBMS features of Oracle

Hi guys,
I do not know if this is the correct place to post this, inform me if not.
1.Why should someone use an object oriented database? What are the benefits and the drawbacks?
2.The member functions of the objects usually contain insert/update/delete statements or code for bussiness purposes??? For example, substracting 10% from a price column???
I guess this could be could if ones bussiness logic is located only in the DB and not in the C#, .NET code of a site. If bussiness suddenly changes, in the afore mentioned way one will not have to built/release his/hers site...!
Again I might be wrong and the usage of the OODB is completely different....
Please enlighten me....

For 10g please check at -
http://download.oracle.com/docs/cd/B16240_01/doc/em.102/b31949/whats_new.htm#CEGIAJAG
For 11g please check at
http://download.oracle.com/docs/cd/E11857_01/em.111/e11982/whats_new.htm

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Hi,
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and
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Amit Das ([email protected]):
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2    (id         NUMBER,
3      doc         CLOB,
4      lang         VARCHAR2 (3),
5      CONSTRAINT your_table_id_pk PRIMARY KEY (id))
6 /
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2 INTO your_table VALUES (1, 'They say only the good die young.', 'eng')
3 INTO your_table VALUES (2, 'The dogs like the cats.',          'eng')
4 INTO your_table VALUES (3, 'cats and dogs',               'eng')
5 INTO your_table VALUES (4, 'cat and dog',                    'eng')
6 INTO your_table VALUES (5, 'chats et chiens',               'fre')
7 INTO your_table VALUES (6, 'chat et chien',               'fre')
8 INTO your_table VALUES (7, 'Die Hunde mögen die Katzen',          'ger')
9 INTO your_table VALUES (8, 'Katzen und Hunde',               'ger')
10 INTO your_table VALUES (9, 'Katze und Hund',               'ger')
11 SELECT * FROM DUAL
12 /
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scott@ORA92> BEGIN
2    ctx_ddl.create_preference ('english_lexer','basic_lexer');
3    ctx_ddl.set_attribute      ('english_lexer','index_themes','yes');
4    ctx_ddl.set_attribute      ('english_lexer','theme_language','english');
5
6    ctx_ddl.create_preference ('french_lexer','basic_lexer');
7    ctx_ddl.set_attribute      ('french_lexer','index_themes','yes');
8    ctx_ddl.set_attribute      ('french_lexer','theme_language','french');
9
10    ctx_ddl.create_preference ('german_lexer','basic_lexer');
11    ctx_ddl.set_attribute      ('german_lexer','composite','german');
12    ctx_ddl.set_attribute      ('german_lexer','alternate_spelling','german');
13
14    CTX_DDL.CREATE_PREFERENCE ('global_lexer', 'MULTI_LEXER');
15    ctx_ddl.add_sub_lexer      ('global_lexer','english','english_lexer', 'eng');
16    ctx_ddl.add_sub_lexer      ('global_lexer','french','french_lexer', 'fre');
17    ctx_ddl.add_sub_lexer      ('global_lexer','german','german_lexer','ger');
18    ctx_ddl.add_sub_lexer      ('global_lexer','default','english_lexer');
19
20    CTX_DDL.CREATE_STOPLIST ('global_stoplist', 'MULTI_STOPLIST');
21    CTX_DDL.ADD_STOPWORD    ('global_stoplist', 'and', 'english');
22    CTX_DDL.ADD_STOPWORD    ('global_stoplist', 'und', 'german');
23    CTX_DDL.ADD_STOPWORD    ('global_stoplist', 'et', 'french');
24    CTX_DDL.ADD_STOPWORD    ('global_stoplist', 'the', 'ALL');
25    CTX_DDL.ADD_STOPWORD    ('global_stoplist', 'die', 'german');
26 END;
27 /
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scott@ORA92> CREATE INDEX your_table_doc_idx
2 ON your_table (doc)
3 INDEXTYPE IS CTXSYS.CONTEXT
4 PARAMETERS
5    ('LEXER           global_lexer
6       LANGUAGE COLUMN lang
7       STOPLIST      global_stoplist')
8 /
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scott@ORA92> ALTER SESSION SET NLS_LANGUAGE = 'AMERICAN'
2 /
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scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, 'die') > 0
2 /
        ID DOC                                                                              LAN
         1 They say only the good die young.                                                eng
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, 'cat AND dog') > 0
2 /
        ID DOC                                                                              LAN
         4 cat and dog                                                                      eng
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, '$cat AND $dog') > 0
2 /
        ID DOC                                                                              LAN
         4 cat and dog                                                                      eng
         3 cats and dogs                                                                    eng
         2 The dogs like the cats.                                                          eng
scott@ORA92> ALTER SESSION SET NLS_LANGUAGE = 'FRENCH'
2 /
Session altered.
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, 'chat AND chien') > 0
2 /
        ID DOC                                                                              LAN
         6 chat et chien                                                                    fre
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, '$chat AND $chien') > 0
2 /
        ID DOC                                                                              LAN
         6 chat et chien                                                                    fre
         5 chats et chiens                                                                  fre
scott@ORA92> ALTER SESSION SET NLS_LANGUAGE = 'GERMAN'
2 /
Session altered.
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, 'Die') > 0
2 /
no rows selected
scott@ORA92> SELECT * FROM your_table WHERE CONTAINS (doc, 'Katze AND Hund') > 0
2 /
        ID DOC                                                                              LAN
         9 Katze und Hund                                                                   gerMessage was edited by:
Barbara Boehmer

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Amit Jain (guest) wrote:
: We have been using POET(OODBMS) ver 5.1 as our backend
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: Novell Bangalore
: India
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