Creating an Oracle Database connection in Yandex DataLens
Warning
Yandex Cloud holds no responsibility for configuring a remote connection on an external database server side. When connecting an external database that is not a Yandex Cloud resource:
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Make sure the database uses an SSL certificate signed by a SSL certificate authority. You will not be able to create a connection in DataLens if the database uses a self-signed SSL certificate.
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Grant database access to the following DataLens IP ranges (
/is followed by the subnet mask length):ipv4ipv6178.154.242.176/28178.154.242.192/28178.154.242.208/28178.154.242.128/28178.154.242.144/28178.154.242.160/28130.193.60.0/28
2a02:6b8:c03:500:0:f83d:a987:0/1122a02:6b8:c02:900:0:f83d:a987:0/1122a02:6b8:c0e:500:0:f83d:a987:0/1122a02:6b8:c41:1300:0:f83d:a987:0/112
To create an Oracle Database connection:
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Open the new connection creation page.
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Under Databases, select the Oracle Database connection.
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Configure the connection as follows:
- Host name: Specify the path to the master host or the IP address of the Oracle Database master host. You can specify multiple hosts in a comma-separated list. If you fail to connect to the first host, DataLens will select the next one from the list.
- Port: Specify the Oracle Database connection port. The default port is 1521.
- Path to database: Specify the service name or the system ID of the database to connect and select the Service name or SID option, respectively.
- Username: Specify the username for the Oracle Database connection.
- Password: Enter the password for the specified user.
- Cache TTL in seconds: Specify the cache TTL or leave the default value. The recommended value is 300 seconds (5 minutes).
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Raw SQL level: Enables you to use an ad-hoc SQL query to generate a dataset. This option is disabled by default. When enabling it, you will need to select the raw SQL level:
- Allow subqueries in datasets: Describe dataset sources using SQL queries.
- Allow subqueries in datasets and source parameterization: Describe dataset sources using SQL queries and use source parameterization.
- Allow subqueries in datasets, source parameterization, and QL charts: Describe dataset sources using SQL queries, use source parameterization, and create QL charts.
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Optionally, test the connection by clicking Check connection.
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Click Create connection.
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Select the workbook to save your connection to or create a new one. If using legacy folder navigation, select a folder to save the connection to. Click Create.
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Enter a name for the connection and click Create.
Additional settings
You can specify additional connection settings under Advanced connection settings:
- TLS: Indicates whether TLS is required. When this option is enabled, the connection requires using SSL.
- CA Certificate: To upload a certificate, click Attach file and select the certificate file. When the certificate is uploaded, the field shows the file name.
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Disable data export: When this option is on, the data export item will not be available in the menu for the charts based on this connection. However, you will still be able to copy chart data and take screenshots.