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Title
Error: "Unable to attach to a server in logon(). ORA-12545" when trying to connect to a RAC datab -
Description
Im trying to connect to RAC database and sometimes it works ok and sometimes I get the error:
Error: Unable to attach to a server in logon(). ORA-12545: Connect failed because target host or object does not exist
I can connect to the database using SQL*Plus.
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