Oracle Text word count in 10g?

Question

Given a clob column full of text in 10g and a particular word, is there a way to return the frequency (word count) of this word in the documents search? Not a count of the records returned but an actual count of the number of times the word is in the documents searched. I couldn't seem to find how in the Oracle text documentation, seems like it would be a simple operation, so I may be looking in the wrong place. Any tips?

Answer 1

In 10g, you can specify algorithm="count" within a query template. I have demonstrated in 11g below, but have used it in 10g previously and it is in the 10g documentaiton.
SCOTT@orcl_11g> drop table t;
Table dropped.
SCOTT@orcl_11g>
SCOTT@orcl_11g> create table t (id varchar2(20) primary key, text varchar2(2000));
Table created.
SCOTT@orcl_11g>
SCOTT@orcl_11g> insert into t values ('1', 'the cat cat cat dog dog sat on the big brown mat');
1 row created.
SCOTT@orcl_11g> insert into t values ('2', 'the big brown mat sat on the big brown mat');
1 row created.
SCOTT@orcl_11g>
SCOTT@orcl_11g> create index ti on t(text) indextype is ctxsys.context;
Index created.
SCOTT@orcl_11g>
SCOTT@orcl_11g> variable search_string varchar2(10)
SCOTT@orcl_11g> exec :search_string := 'cat'
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> select :search_string, id, score (0) as frequency_count
  2  from   t
  3  where  contains
  4             (text,
  5              '<query>
  6              <textquery lang="ENGLISH" grammar="CONTEXT">'
  7              || :search_string ||
  8             '</textquery>
  9              <score datatype="INTEGER" algorithm="COUNT"/>
10            </query>',
11              0) > 0
12  /
:SEARCH_STRING                   ID                   FREQUENCY_COUNT
cat                              1                                  3
SCOTT@orcl_11g> exec :search_string := 'cat dog'
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> /
:SEARCH_STRING                   ID                   FREQUENCY_COUNT
cat dog                          1                                  1
SCOTT@orcl_11g> exec :search_string := 'brown mat'
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> /
:SEARCH_STRING                   ID                   FREQUENCY_COUNT
brown mat                        1                                  1
brown mat                        2                                  2
SCOTT@orcl_11g>