Question

Incrementing Time based on the row count?

Asked by: directxBOB

I have the following statement:

select * from tickets

which returns the following:

id  |  Name  |  Description  |  CustomerID  |  Position
------------------------------------------------------------
1  |  Test1   |  Test Ticket  |  1                   |  1
2  |  Test2   |  Test Ticket  |  1                   |  2
4  |  Test3   |  Test Ticket  |  1                   |  3
2  |  Test4   |  Test Ticket  |  2                   |  1
2  |  Test5   |  Test Ticket  |  2                   |  2

So what I want to do is order the tickets and create a time field that spaces them 15 minutes apart.

eg:

id  |  Name  |  Description  |  CustomerID  |  Position  |  Due On
-----------------------------------------------------------------------------
1  |  Test1   |  Test Ticket  |  1                   |  1            |  09:00
2  |  Test2   |  Test Ticket  |  1                   |  2            |  09:15
4  |  Test3   |  Test Ticket  |  1                   |  3            |  09:30
2  |  Test4   |  Test Ticket  |  2                   |  1            |  09:00
2  |  Test5   |  Test Ticket  |  2                   |  2            |  09:15

So as you can see I am looking to create a Due On field, which basically take the time and add 15 minutes onto it for each position found for a customer. Thus spacing the tickets out 15 minutes apart. It would be important that I don;t continue past 23:59 for any given day.

Any ideas on how I can achieve this, I am using SQL Server 2008.

Cheers

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Asked On
2009-11-06 at 07:26:02ID24878116
Topics

SQL Query Syntax

,

MS SQL Server

,

SQL Server 2008

Participating Experts
2
Points
500
Comments
4

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    Answers

     

    by: matthewspatrickPosted on 2009-11-06 at 07:32:04ID: 25759938

    SELECT *, DATEADD(minute, 15 * (Position - 1), CONVERT(datetime, '09:00:00')) AS DueOn
    FROM SomeTable
    ORDER BY CustomerID, Position

     

    by: HainKurtPosted on 2009-11-06 at 07:53:11ID: 25760168

    or this

    SELECT t.*, 
       convert(varchar(5), DATEADD(minute, 15 * (3 - 1), CONVERT(datetime, '09:00:00')), 108) AS DueOn
from tickets

                                              
    1:
2:
3:

    Select allOpen in new window

     

    by: HainKurtPosted on 2009-11-06 at 07:55:08ID: 25760192

    sorry, hardcoded position :) use this

     

    by: HainKurtPosted on 2009-11-06 at 07:55:39ID: 25760205

    missed attachement...

    SELECT t.*, 
       convert(varchar(5), DATEADD(minute, 15 * (position - 1), CONVERT(datetime, '09:00:00')), 108) AS DueOn
from tickets
                                              
    1:
2:
3:

    Select allOpen in new window

    20120131-EE-VQP-002

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