This features contains connector nodes (including the needed
JDBC drivers) for common databases
(currentl SQLite, PostgreSQL, and MySQL, ...).
If you want to use the official Microsoft SQL server driver
please install the KNIME Microsoft JDBC Driver For SQL Server feature.
Extension 
KNIME Connectors for Common Databases
Included nodes & related workflows
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Copyright by KNIME AG, Zurich, Switzerland
Update site information
KNIME Analytics Platform 4.3 Update Site, Version 4.3.0
http://update.knime.com/analytics-platform/4.3
In case you can’t install the extension via drag & drop, please check that the update site is activated.