問題描述
什麼是日期時間2？ (What is datetime2?)
I´ve got this in a INSERT statment to MSSQL 2008
System.Data.SqlClient.SqlException: The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.
參考解法
方法 1:
SQLServer's datetime datatype is a much smaller range of allowed values than .net datetime datatype. SQLServer's datetime type basically supports the gregorian calendar, so the smallest value you can have is 1/1/1753. In 2008 SQLServer added a datetime2 datatype that supports back to year 1 (there was no year 0). Sounds like you're trying to insert a datetime value that's before 1/1/1753 into a datetime (not datetime2) SQLServer column
方法 2:
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.
http://technet.microsoft.com/en-us/library/bb677335.aspx
方法 3:
From technet:
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.
I had to check because I thought datetime2 had some relation with varchar2. Apparently, no relation at all.
Put your code so we can guess what caused the problem.
方法 4:
Could it be that your database table has a "DATETIME" or "SMALLDATETIME" column and you're trying to insert an out-of-range date?? DATETIME covers 1753-1-1 through 9999-12-31, while SMALLDATETIME covers 1900-1-1 through 2079-6-6 only.
The new SQL Server 2008 DATETIME2 data type will cover 0001-1-1 through 9999-12-31.
Marc
方法 5:
I got this error when my database column was created as NOT NULL and I specifically specified a Nullable = true on my DateTime Property in my ADO.Entity framework EntityType.
To fix it I make the Nullable property = (None)
(by Glenn、Walden Leverich、Cantillon、Paulo Guedes、marc_s、Anton Swanevelder)