Navicat can be used to connect to various mainstream databases, it is really a good DB tool.
If you try to connect to oracle database with Navicat for the first time, it is likely to report the following error:
Cannot load OCI DLL 87:
Instant Client package is required for Basic and TNS connection.
reason:
Oracle needs to install the client to allow third-party tools to connect through OCI (Oracle Call Interface).
solution:
1. Go to oracle official website to download Instant Client 11, or the instantclient_11_2.rar I shared .
2. Unzip directly to a suitable directory, such as C:\instantclient_11_2.
3. Navicat --> Tools --> Options... --> Others --> OCI,
OCI library(oci.dll)*: select C:\instantclient_11_2\oci.dll
SQL*Plus: Select C:\instantclient_11_2\sqlplus.exe
4. Retry to connect to the Oracle database, OK!