ZabbixDBA is fast, flexible, and continuously developing plugin to monitor your RDBMS. ZabbixDBA uses threading of DBI connections which is good for monitoring of multiple database instances simultaneously. Just configure it, run daemon and it will do all the job
This template monitors Oracle database health, performance, security audit, etc.
Zabbix Oracle ODBC Template with Tablespace Autodiscovery
Zabbix template for Microsoft SQL Server monitoring via perfmon, services and ODBC.