?toad連接出現問題：
可能是一些環境變量被修改了，比如昨天我碰到的問題
d:\oracle\ora92\BIN 被修改了，在path 里面將其配置好，就可以了
正常的配置信息如下：
?(Oracle Root)
? ORACLE_HOME = d:\oracle\ora92
? ORACLE_SID =
? NLS_LANG = NA
? SQLPATH =
? d:\oracle\ora92\BIN is in system PATH
? d:\oracle\ora92\BIN does exist
? Client dll found oci.dll
? oci.dll version: 9.2.0.1.0??
? (Oracle Root) is valid
HOME0
? ORACLE_HOME_NAME = OraHome92
? ORACLE_HOME = d:\oracle\ora92
? ORACLE_SID = NHOALG
? NLS_LANG = SIMPLIFIED CHINESE_CHINA.ZHS16GBK
? SQLPATH = d:\oracle\ora92\dbs
? d:\oracle\ora92\BIN is in system PATH
? d:\oracle\ora92\BIN does exist
? Client dll found oci.dll
? oci.dll version: 9.2.0.1.0
? HOME0 is valid
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同事遇到問題，toad安裝好一次后，就打不開了
是版本的問題，換了一個版本就好了
7.6--8.0
?