Significant Throughput Degradation When getParameterMetadata is Called on Every PreparedStatement (Doc ID 2169848.1)

Last updated on JULY 26, 2017

Applies to:

JDBC - Version 12.1.0.1.0 and later
Information in this document applies to any platform.

Symptoms

In a JDBC application, getParameterMetadata is called on every PreparedStatement as below:

Changes

The problem appears after upgrading JDBC driver to 12.1.0.x and applying merge patch containing fix for Bug 18644587.

Cause

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