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1. Configure the file first

Tools-"preferences

Among them, some companies will have the location of the green × × file.

During this period, I also manipulated the environment variable to remove the Oracle environment variable (the online method). No.

2. Second, because I can't configure it with the above methods.

E:\ Oracle\ product\ 10.2.0\ db_1\ network\ ADMIN modifies the following path

Tnsnames.ora file

And then it's okay.

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