Is There any function to get Difference of Dates

Hi All,

Is There any function to get Difference of Dates.

Here tdate is of type timestamp

If I tried

select * from temptbldate WHERE (EXTRACT(EPOCH FROM TIMESTAMP 'now()') -
EXTRACT(EPOCH FROM TIMESTAMP tdate) )/ 86400 < 2
I got error as 'Parse error at tdate'

select * from temptbldate WHERE (EXTRACT(EPOCH FROM TIMESTAMP 'now()') -
EXTRACT(EPOCH FROM TIMESTAMP 'tdate') )/ 86400 < 2
If I use 'tdate', I got 'bad timestamp external representation 'tdate',
Probably it might be taking 'tdate' as string.

How can I use epoch to get difference of two dates.

Regards,
Sreedhar

"Faith, faith, faith in ourselves, faith, faith in God, this is the secret
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If you have faith in all the three hundred and thirty millions of your
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and in all the gods which foreigners have now and again introduced into your
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and still have no faith in yourselves, there is no salvation for you. "
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