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How to Work with new data type TIME introduced in SQL Server 2008. (SQL Server new features)?

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How to Work with new data type TIME introduced in SQL Server 2008. (SQL Server new features)?
posted Mar 19, 2016 by Sathyasree

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1 Answer

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Sql Server 2008 introduced new data type with name TIME. This new data type just stores the time. The n in TIME (n) defines this level of fractional second precision, from 0 to 7 digits of precision. It stores time with a range of 00:00:00.0000000 through 23:59:59.9999999.

Storage difference:

TIME data type takes only 3-5 bytes for storage depend upon precision you requested. It saves many bytes like if you want to store TIME with less precision.

Internal functions support:
As we know that there are some functions uses for DATETIME data type formatting like DATEPART, DATENAME, DATEDIFF, and DATEADD, these function are now supported with new TIME type also.

Declaration:

Declare with different precision levels

0 Precision Level

DECLARE @time_now_0_Prec time(0)

1 Precision Level

DECLARE @time_now_1_Prec time(1)

2 Precision Level

DECLARE @time_now_2_Prec time(2)

3 Precision Level

DECLARE @time_now_3_Prec time(3)

4 Precision Level

DECLARE @time_now_4_Prec time(4)

5 Precision Level

DECLARE @time_now_5_Prec time(5)

6 Precision Level

DECLARE @time_now_6_Prec time(6)

7 Precision Level

DECLARE @time_now_7_Prec time(7)

Value Assignment:

SET @time_now_7_Prec = SYSDATETIME()

Use In T-Sql:

SELECT @time_now_0 as 'Current Time', datalength(@time_now_0) as 'Size in bytes'

Result:

Current Time              Size in Bytes
------------------       -----------------
20:01:44.8035344             5
answer Mar 19, 2016 by Shivaranjini
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