Subject Re: [firebird-support] Add 1 minute to a TimeStamp
Author Softtech Support
Post date 2015-03-10T20:02:48Z
In the code provided below I meant to type 2012 not 201
 
----- Original Message -----
Sent: Tuesday, March 10, 2015 3:01 PM
Subject: Re: [firebird-support] Add 1 minute to a TimeStamp

 

Firebird v1.5.3
 
Does anyone know what's going on here?
 
DECLARE VARIABLE tsTranCreateDate TimeStamp;
DECLARE VARIABLE tsTest TimeStamp;
 
Starting Value:
tsTranCreateDate = 10/31/201 7:50:16 AM
 
Two days:
tsTest = (:tsTranCreateDate - (2.0));
Correctly returns 10/29/201 7:50:16 AM
 
One hour:
tsTest = (:tsTranCreateDate - (1.0/24.0));
Incorrectly returns 10/31/201 6:52:40 AM
 
One minute:
tsTest = (:tsTranCreateDate - (1.0/1440.0));
Incorrectly returns 10/31/201 7:50:16 AM
 
One second:
tsTest = (:tsTranCreateDate - (1.0/86400.0));
Incorrectly returns 10/31/201 7:50:16 AM
 
Subtract 2 days works fine.  Subtract 1 hour is wrong.  Subtract one minute or 1 second does nothing
 
Any ideas?
 
Mike
 
 
----- Original Message -----
Sent: Tuesday, March 10, 2015 2:22 PM
Subject: [firebird-support] Add 1 minute to a TimeStamp

 

Greetings All,
 
What is the best way in a stored procedure to add a minute or a few seconds to a TimeStamp?
 
Thanks,
 
Mike


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