sql-server - 時間間隔で値を選択する

Question

私のアプリケーションでは、私はちょうど取得したかったnumber of sales in a day by diiferent time interval

お気に入り

-----------------------------------------------------
Interval                     |  Count
-----------------------------------------------------
00:30 to 0:130               |  3
01:30 to 10:30               |  4
02:30 to 03:30               |  5
.. 
..
12:30 to 00:30               |  10
----------------------------------------------------- 

次のようなクエリを試しました

select '00:30 to 01:30' as intrval , COUNT(*) AS 'count' from Pharmacy.tblSalesHdr  SH
where CAST(SH.created_Date AS TIME)  BETWEEN '00:30' AND '00:30'

UNION ALL

select '01:30 to 02:30' as intrval , COUNT(*) AS 'count' from Pharmacy.tblSalesHdr  SH
where CAST(SH.created_Date AS TIME)  BETWEEN '01:30' AND '02:30'

UNION ALL

select '02:30 to 03:30' as intrval , COUNT(*) AS 'count' from Pharmacy.tblSalesHdr  SH
where CAST(SH.created_Date AS TIME)  BETWEEN '02:30' AND '03:30'

and so on...

better and optimized methodこれを達成するためにそこに何かあるかどうかを知りたいだけです。誰かがplsシェアを知っているなら。