How to insert Chinese (big5) through JDBC?

Hi all,
I encounter problem when inserting Chinese.
These are my setting:
- postgresql 7.3 (database encoding: "SQL_ASCII")
- JDBC: pg73jdbc2.jar
- Tomcat 4.1.24
- JSP/Servlet/Java Bean
insert into table1 values('¤@¤G¤T') // chinese cannot display here...
Insert Chinese words are ok. But when I select the record, there were wrong sth. like '? ?³æ '
The sql statement is in big5 format because I write it in a log file.
I've tried using charset like this. Not knowing why. All fail...
jdbc:postgresql://202.71.201.252:5432/CA_care?charSet=ISO-8859-1
jdbc:postgresql://202.71.201.252:5432/CA_care?charSet=SQL_ASCII
jdbc:postgresql://202.71.201.252:5432/CA_care?charSet=UTF-8
jdbc:postgresql://202.71.201.252:5432/CA_care?charSet=Big5

Any idea.
Best Regards,
Eric Tan

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