Group by Week show Month and 1st day of week

Hi Experts,

I need some help with this, please.

These two return the same data, but the first one doesn't work in SSRS so we modified it to the second one.   I want to add another column with a more human readable version of the week, like "04/01 - 04/07" or just the first day of each week so that the new column looked like:
04/01
04/08
04/15
SELECT DATEPART(YEAR, DateTime) AS Year, DATEPART(WK, DateTime) AS Week, Office, COUNT(CustomerID) AS Traffic
  FROM [OneStopSignIn].[dbo].[Customers]
  GROUP BY Office,DATEPART(YEAR, DateTime), DATEPART(wk, DateTime)
  ORDER BY  DATEPART(YEAR, DateTime), DATEPART(wk, DateTime), Office

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SELECT dYear, dWeek, office, count(customerid) as traffic from
(SELECT DATEPART(YEAR, DateTime) AS dYear,  DATEPART(WK, DateTime) AS dWeek, Office, CustomerID
  FROM [OneStopSignIn].[dbo].[Customers]) x
  GROUP BY dYear, dWeek, office
  ORDER BY dYear,  dWeek, office

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This has to work in SSRS. I don't know why the first one complains about DateTime not being a valid column.

Thanks.
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megninAsked:
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RimvisCommented:
Hello megnin,

DateTime is reserved keyword in MS SQL. If you cave a column in your table named that way (which is BAD idea), enclose it in "[]", e.g. DATEPART(YEAR, [DateTime])
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ValentinoVBI ConsultantCommented:
The first query aliases the first column as Year, not a good idea either because that's a reserved keyword as well.

See for the full list: http://msdn.microsoft.com/en-us/library/ms189822(v=sql.105).aspx
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megninAuthor Commented:
Oh, I didn't think of that.  Thanks.  

But no one offed any suggestions about adding the "week date" column.  That was my question.
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RimvisCommented:
How about this:
CONVERT(CHAR(5), DATEADD(wk, DATEDIFF(wk, 6, [DateTime]), 6), 1) + ' - ' + CONVERT(CHAR(5), DATEADD(wk, DATEDIFF(wk, 5, [DateTime]), 5), 1)
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megninAuthor Commented:
Rimvis, that worked wonderfully.  Thank you very much!
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