Date BETWEEN Query With A Difference?

Dec 12, 2007



Hi,
I have a BETWEEN query (at least I think that's what it will need), but with a difference.

Normally you would specific a field which was BETWEEN two set variables

ie. {fieldname} BETWEEN 1 AND 3


However I need mine the other way round.

I have a series of records which have a startdate and enddate held against them.

When a user submits a new record to the db, I need it to check that the starting and ending date range doesn't overlap any of the existing start-end date ranges that exist.

In order to do that I'm trying to build a query which takes in the incoming startdate variable and see if that is within any of the existing start-date-enddate dates ranges of the existing records, and then same for the incoming endate. I actually want the ones that are going to cause a problem to appear...

I;m sure there is a pretty easy way of coding this, but I'm struggling to get my head round it.

Anyone offer any advice?

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Column
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Oct 1, 2007

Hi,

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Dec 18, 2007

Hi,
I and my friend are trying to solve problem :

I have a system where an employee makes a call. The call can be of type 1,2,3. I have to calculate:

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Please see the expected output to get an idea.

I will be passing in EmpID and CallType to the procedure.

First a record gets inserted into CallDetail and then into the Call for each CallType.

SAMPLE SCRIPT:

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DECLARE @CallDetail TABLE(CallDetailID INT, EmpID INT, EntryDt DateTime)

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SELECT 134, 1, 43555 UNION ALL
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SELECT 145, 1, 65322 UNION ALL
SELECT 154, 2, 65322 UNION ALL
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LastCallDate Yesterday Duration
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-- For CallType 2 EmpID 1
LastCallDate Yesterday Duration
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LastCallDate Yesterday Duration
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