JDBC 11.2.0.3 Creates Many Child Cursors Due To Bind Mismatch On Timestamp Data Type (Doc ID 2418191.1)

Last updated on JUNE 05, 2023

Applies to:

JDBC - Version 11.2.0.3.0 to 12.2.0.0.0 [Release 11.2 to 12c]
Information in this document applies to any platform.

Symptoms

JDBC Driver version 11.2.0.3, 11.2.0.4, and 12.1.0.2 creates many child cursors due to bind mismatch on timestamp data type. Two different binds for the timestamp variable will be seen: one with scale 9 and one with scale <null>.
This happens when the application inserts null timestamps and then updates them.
The JDBC driver creates multiple child cursor and after a certain threshold is reached, mutex issue and performance degrade is experienced.

The issue does not occur with JDBC 11.2.0.1.

ERROR
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<ChildNode><ChildNumber>54</ChildNumber><ID>40</ID><reason>Bind mismatch(14)