PL/SQL Developer 解决中文乱码问题
前 沿-可以根据语言环境展示不同的符号 参考 NLS (National Language Support) is used to define national date, number, currency and language settings. For example, it can be used to change the currency symbol from $ to € (Euro); the language from English to Dutch, etc. To see what NLS parameters are in effect, perform the below queries - Client parameters (change with ALTER SESSION): SELECT * FROM nls_session_parameters;## 优先级最高 Instance parameters (change with ALTER SYSTEM): SELECT * FROM nls_instance_parameters;## 优先级第二高 Database parameters (set during database creation): SELECT * FROM nls_database_parameters;