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This article mainly introduces the solution to the failure of navicat connection to oracle, which is very detailed and has a certain reference value. Interested friends must read it!

Navicat failed to connect to the oracle database with an ORA-28547 error.

Reason: the OCi version of navicat Primium is inconsistent with the OCI version of the local database.

Solution:

1. Replace the oci.dll in the local Oracle installation path with oci.dll in the navicat Primium version.

My local navicat Primium version comes with an oci.dll path: F:\ Navicat Premium\ instantclient_10_2\ oci.dll

2. Find the oci.dll in the local Oracle installation path, and modify the OCI path in the navicat Primium version to the OCI path in the local Oracle installation path.

My local Oracle oci.dll path is: F:\ Oracle_11g_R2\ product\ 11.2.0\ dbhome_1\ BIN\ oci.dll

Modify the OCi path of the navicat Primium version.

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