Oracle DB 12.2(12cR2)的一个新特性:硬解析失败的SQL语句(需要符

How to Identify Hard Parse Failures (Doc ID 1353015.1)
Bug 16945190 - Diagnostic enhancement to dump parse failure information automatically (Doc ID 16945190.8)

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This is a diagnostic enhancement that will give an early warningin the alert log if there are excessive parse failures occuring,and will collection information about the failures. The sampling interval for flagging recurring parse errors can be fine tuned with the hidden parameter "_kks_parse_error_warning".By default the diagnostic will dump the parse error along with warning in alert log every 100 parse errors for a given SQL within a 60 minutes period. If there is already a known parse issue then one can use existing event 10035to dump similar information.

（编辑：李大同）

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