KOREAN_MORPH_ LEXER Dictionaries

The KOREAN_MORPH_LEXER uses four dictionaries:

Table 26 KOREAN_MORPH_LEXER Dictionaries

Dictionary	File
System	$ORACLE_HOME/ctx/data/kolx/drk2sdic.dat
Grammar	$ORACLE_HOME/ctx/data/kolx/drk2gram.dat
Stopword	$ORACLE_HOME/ctx/data/kolx/drk2xdic.dat
User-defined	$ORACLE_HOME/ctx/data/kolx/drk2udic.dat

The grammar, user-defined, and stopword dictionaries should be written using the KSC 5601 or MSWIN949 character sets. You can modify these dictionaries using the defined rules. The system dictionary must not be modified.

You can add unregistered words to the user-defined dictionary file. The rules for specifying new words are in the file.

You can use KOREAN_MORPH_LEXER if your database uses one of the following character sets:

• KO16KSC5601

• KO16MSWIN949

• UTF8

• AL32UTF8

The KOREAN_MORPH_LEXER enables mixed-case searches.