SQL Server 2008 supports user-defined functions and built-in, system, functions. Scalar Functions User-defined scalar functions return a single data value of the type defined in the RETURNS clause. For an inline scalar function, there is no function body; the scalar value is the result of a...
Are there any Bitmap(ped) indexes in SQL Server? Are there MIN(A,B) or MAX(A,B) functions in SQL? Argument data type datetime is invalid for argument 3 of json_modify function Argument data type sql_variant is invalid for argument 1 of like function Argument data type text is invalid...
SQL Server 2008 内置的七种新数据类型提供了处理和简化更复杂数据管理的方法。日期和时间使用旧的 datetime 数据类型时,SQL Server® 用户无法分别处理日期和时间信息。四种新数据类型(date、time、datetime2 和 datetimeoffset)则改变了这一状况,从而简化了日期和时间数据的处理,并且提供了更大的日期范围、小数秒...
GetHashCode Gets a hash of the path from the root node of the hierarchy tree to the SqlHierarchyId node. (覆寫 ValueType. . :: . .GetHashCode() () () ()。) GetLevel Gets a value indicating the level of the SqlHierarchyId node in the hierarchical tree. GetReparentedValue Gets a ...
Returns a geography object that represents the union of all points whose distance from a SqlGeography instance is less than or equal to a specified value. 命名空间: Microsoft.SqlServer.Types 程序集: Microsoft.SqlServer.Types(在 Microsoft.SqlServer.Types.dll 中) 语法 C# 复制 [SqlMethodAttribute(...
and is in some ways similar to other built-in types, such asintandvarchar. As with other built-in types, you can use thexmldata type as a column type when you create a table; as a variable type, a parameter type, or a function-return type; or in Transact-SQL CAST and CONVERT fun...
后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能,并着手修改当前还在使用该功能的应用程序。 TheOutcomeTypesproperty controls job history filtering by completion status of a job. 语法 object .OutcomeTypes [= value] ...
294,967,295 or 4GB (232 − 1) bytes. The effective maximum length of LONGBLOB columns depends on the configured maximum packet size in the client/server protocol and available memory. Each LONGBLOB value is stored using a 4-byte length prefix that indicates the number of bytes in the ...
when you work with data that contains leading or trailing spaces, you should use theText.Trimfunction to remove spaces at the beginning or end of the text. If you don't remove leading spaces, a relationship might fail to create because of duplicate values, or visuals might return unexpected...
Microsoft SQL Server 2008 R2 and Microsoft SQL Server 2012 vary as follows: Transact-SQL partially supports this feature. However, Transact-SQL generally specifies string lengths, such as those in function parameters and results, as bytes rather than characters. In addition, although the s...