TNS: could not resolve the connect identifier specified

打开环境变量设置:

path  ==  E:\oraclient_2;E:\oracle\oradata\bin;E:\oracle\bin;

该成如下:

path  ==  E:\oracle;E:\oracle\oradata\bin;E:\oracle\bin;

原文地址：http://www.blogjava.net/wahahacj/archive/2007/11/19/161689.html