Date Subtraction Off By A Fraction 1.0000E-38 (Doc ID 1907661.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms

When you substract two DATE data types where the difference is only seconds , the value resulted is in a fraction of a day.

Hence , when multiplying by 86400 to convert to seconds a small fraction is added to the result (1.0000E-38) . 

This may fail any decision making on comparing the result of subtraction to a know

For example :-

if (date_result = 26 )

<some action>

Changes

 The following case demonstrate the behavior:-

 

Cause

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