Oracle全文检索方面的研究(全3)(3)

mylex);

--建立 chinese_vgram_lexer 或是chinese_lexer

Begin

ctx_ddl.create_preference(my_chinese_vgram_lexer, chinese_vgram_lexer);

ctx_ddl.create_preference(my_chinese_lexer, chinese_lexer);

End;

-- chinese_vgram_lexer

Create index ind_m_lex1 on my_lex(docs) indextype is ctxsys.context

Parameters (lexer ctxsys.my_chinese_vgram_lexer);