JDBC Client Performance issue with Cloud queries (WAN) compared to On-premise queries (LAN)
Last updated on JANUARY 25, 2018
Applies to:JDBC - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
When making queries using a JDBC Thin driven client to a Cloud Database, the results are returned slower than when running the same query across a LAN (to an On-premise Database).
a) Queries submitted from clients to a Database in a local datacenter (across a LAN) are returned in about 0.5 seconds.
b) Queries submitted from clients to a Database in the Oracle Cloud (across a WAN) are returned in about 4.5 seconds.
A tcpdump may show that the data packets coming back from the Database are smaller in b) than they are in a).
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