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 Check Datetime Existence within multiple columns
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Starting Member

6 Posts

Posted - 01/23/2013 :  06:57:20  Show Profile  Reply with Quote
Hi there,

I've a BillDate as date, and a Mark as bit column in First table.
(Mark=0 by default)

In Second table I've FromDate as date, and ToDate as date Column.

I want to set Mark=1 if BillDate is exists between FromDate & ToDate

Let Say In First Table the data is
BillDate | Mark
2012-11-10 11:15:30 | 0
2012-12-12 09:00:00 | 0

In Second Table the data is
FromDate | ToDate
2012-11-01 07:00:00 | 2012-11-09 23:59:59
2012-12-08 07:00:00 | 2012-12-15 23:59:59

So in the above scenario only the second row from First table
which is having, BillDate->2012-12-12 09:00:00 will be Mark as 1
because it comes between second row of second table

I hope I've explained my scenario,

Very Important crosS Applying yaK Herder

52326 Posts

Posted - 01/23/2013 :  07:02:24  Show Profile  Reply with Quote

SET Mark=1
FROM table1 t1
JOIN table2 t2
ON t1.BillDate >= t2.FromDate
AND t1.BillDate <= t2.ToDate 

SQL Server MVP

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