ORA-12154: TNS: failed to parse the specified connection identifier at plsql Login

Source: Internet
Author: User

The ORA-12154: TNS: failed to parse the specified connection identifier at plsql login.

The above situation may be caused by a problem with plsql preferences.

In plsql (Simplified Chinese Version)Tools → preferences → connection → Oracle main directory nameSelect the directory (if the server and client are installed on the computer, there will be two options ).

In plsql (English version)Tools→ Preferences → Connection → Oracle HomeSelect the directory (if the server and client are installed on the computer, there will be two options ).

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