Using SYN within NEAR

Question

Hi All,
Could please help me in below sql.
CREATE TABLE stem_table (test_word  VARCHAR2 (4000))
create index test_index1 on stem_table (test_word)
indextype is ctxsys.context
exec ctx_thes.create_thesaurus ('your_US_thes');
exec CTX_THES.CREATE_RELATION('your_US_thes','Potter','SYN','Pot');
insert into stem_table values('Harry Potter');
insert into stem_table values('Potter and Harry');
insert into stem_table values('Harry and Pot');
insert into stem_table values('Harry Pot');
insert into stem_table values('Harry and Pot');
insert into stem_table values('Harry and also Pot');
commit;
exec ctx_ddl.sync_index('test_index1')
select * from stem_table where contains(TEST_WORD,'Harry syn(Potter,your_US_thes)') > 0;
ERROR at line 1:
ORA-29902: error in executing ODCIIndexStart() routine
ORA-20000: Oracle Text error:
DRG-50920: part of phrase not itself a phrase or equivalence
select * from stem_table where contains(TEST_WORD,'NEAR ((Harry,Potter), 0, TRUE)') > 0;
TEST_WORD
Harry Potter
select * from stem_table where contains(TEST_WORD,'NEAR ((Harry,syn(Potter,your_US_thes)), 0, TRUE)') > 0;
ERROR at line 1:
ORA-29902: error in executing ODCIIndexStart() routine
ORA-20000: Oracle Text error:
DRG-50919: NEAR operand not a phrase, equivalence or another NEAR expressionI want Harry Potter and Harry Pot to be displayed without any word in between, synonym has been created for Potter to Pot.
Why i am getting errors when using SYN with NEAR??

Answer 1

Hi,
using SYN in a NEAR is not possible. You could use the method given in this thread: [url http://forums.oracle.com/forums/thread.jspa?messageID=1680159&#1680159]SYN and NEAR.
Herald ten Dam
http://htendam.wordpress.com