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What is the difference between datetime2 and datetime?
The main difference is the way of data storage: while in Datetime type, the date comes first and then time, in Datetime2, 3 bytes, in the end, represents date part! Depending on precision, Datetime2 takes between 6 and 8 bytes of storage.
What is datetime2 datatype?
DATETIME2. The DATETIME2 data type is an extension of the DATETIME data type. This new data type extends the range of acceptable dates and adds additional precisions to the time portion of the date/time value. The DATETIME2 column supports dates from 0001-01-01 through 9999-01-01.
How does SQL Server store datetime2?
The DateTime2 is an SQL Server data type, that stores both date & time together. The time is based on the 24 hours clock. The DateTime2 stores the fractional seconds Up to 7 decimal places (1⁄10000000 of a second)….Range.
| Property | Value |
|---|---|
| Usage | DECLARE @MyDatetime2 datetime2(7) CREATE TABLE Table1 ( Column1 datetime2(7) ) |
What does datetime2 0 mean?
DateTime2(0) will store datetime with no decimal values i.e YYYY-MM-DD hh:mm:ss SELECT CONVERT(DateTime2(0) , GETDATE()) RESULT: 2015-04-06 20:47:17. Storing data just as dates will only store dates i.e YYYY-MM-DD without any time values.
What is datetime2?
Defines a date that is combined with a time of day that is based on 24-hour clock. datetime2 can be considered as an extension of the existing datetime type that has a larger date range, a larger default fractional precision, and optional user-specified precision.
What are the two components of datetime2?
The DATETIME2 has two components: date and time. The date has a range from January 01, 01 (0001-01-01) to December 31, 9999 (9999-12-31) The time has a range from 00:00:00 to 23:59:59.9999999. The storage size of a DATETIME2 value depends on the fractional seconds precision.
Is there a default value for mydate2?
Here, @MyDate has no default value, thus it must have a value supplied to be able to use the Procedure. @MyDate2, however, has a default value of NULL, thus doesn’t need to be supplied and the value NULL will be used. If a value for @MyDate2 is supplied, that supplied value will be used.
Which is the default string format for datetime2?
The default string literal format of the DATETIME2 is as follows: YYYY-MM-DD hh:mm:ss[.fractional seconds] Code language: SQL (Structured Query Language) ( sql )
What is the default value for datetime2 in SQL Server?
Everything in SQL Server has a default value of NULL unless you specify otherwise. For example DECLARE @MyDate datetime2 (0);: @MyDate will have a value of NULL.