How to Resolve TNS-03505: Failed to resolve name

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TNS-03505 Failing to resolve TNS names could involve any one of the network configuration files, such as tnsnames.ora or sqlnet.ora. There’re several possible causes may throw TNS-03505: Absent Local Naming Connect Identifier Mismatch Search for Wrong Domain 1. Absent Local Naming There’re several naming methods supported by Oracle in sqlnet.ora. Only local naming can be […]

How to Resolve ORA-12537:TNS:connection closed

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ORA-12537 Overview There’re several possible causes to raise ORA-12537: Incorrect File Permission White or Black List ORA-12537 Caused by Incorrect File Permission Incorrect file permission will prevent connections from being established. That is to say, potentially successful connections will be interrupted by ORA-12537 due to wrong file permissions, specifically, the execution permission. As a result, […]