摘要：
http://download.oracle.com/docs/cd/B10500_01/server.920/a96529/ch2.htmOracle uses the database character set for:Data stored in SQL CHAR datatypes (CHAR, VARCHAR2, CLOB, and LONG)Identifiers such as table names, column names, and PL/SQL variablesEntering and storing SQL and PL/SQL source codeThe cha 阅读全文
