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Message Posted: Thu, 27 Mar 2008 @ 16:31:49 GMT

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Subj:   Re: Please give some idea about calendar operations
From:   Michael Larkins

Hello Ravi:

I am not entirely sure what you mean by "last six months" but here are two possible ways to approach it in your :

1. March 23 going back to September 23 - WHERE activity_date >= add_months(activity_date,-6)

2. March 23 going back to September 1 - WHERE activity_date >= (add_months(activity_date,-6)/100)*100+1(date)

I hope this answers your question.

Michael Larkins
Certified Teradata Master
Certified Teradata SQL Instructor

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