I have compiled an article about how to view and modify character sets.Article:
View and modify Oracle Character Set
Http://blog.csdn.net/tianlesoftware/article/details/4915223
You can modify the nls_lang parameter to set the character set of the client.
In XP, the location of this parameter in the registry is:
HKEY_LOCAL_MACHINE --- software --- Oracle -- home
In win 7, the location of this variable has changed:
HKEY_LOCAL_MACHINE \ SOFTWARE \ wow6432node \ oracle \ key_oradb11g_home1
Tips.
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------- Add a group to describe the relationship between Oracle tablespace and data files in the remarks section. Otherwise, reject the application ----
Dba1 group: 62697716 (full); dba2 group: 62697977 (full) dba3 group: 62697850 (full)
Super DBA group: 63306533 (full); dba4 group: 83829929 dba5 group: 142216823
dba6 group: 158654907 dba7 group: 172855474 DBA group: 104207940