What is written below is commonplace on the Internet: Plsql Developer connection to Oracle database garbled problem. It's written here purely for personal records.
Problems that were encountered last week. Native Win7, with Oracle 11GR2 free installation client, through PLSQL Developer Connection Server Oracle 10g, configured after the database can be connected, but garbled. Here's how to fix it:
1, set the local client code: Enter My Computer, properties, advanced, environment variables, add 2 items: LANG=ZH_CN. GBK and Nls_lang=simplified Chinese_china. Zhs16gbk
2. PL/SQL Developer set up and reconnect: modified to Chinese font in the PL/SQL Developer Menu->tools->preferences->user interface->fonts
Report:
Check server encoding: Execute SQL Syntax: SELECT * FROM V$nls_parameters
Plsql Developer Connection to Oracle database garbled