usingSystem;usingSystem.Data;usingSystem.Data.SqlTypes;usingMicrosoft.SqlServer.Server;usingSystem.Text; [Serializable] [Microsoft.SqlServer.Server.SqlUserDefinedType(Format.Native, IsByteOrdered=true, Validatio
Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute的Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute.ValidationMethodName属性允许你提供在将数据分配给 UDT 或转换为 UDT 时服务器运行的验证方法的名称。 在运行bcp实用工具、BULK INSERT、DBCC CHECKDB、DBCC CHECKFILEGROUP、DBCC CHECKTABLE、分布式查询和表格数据...
Applies to: SQL Server You must make several important design decisions when creating a user-defined type (UDT) to be installed in SQL Server. For most UDTs, creating the UDT as a structure is recommended, although creating it as a class is also an opt...
UserDefined serialization Serialization attributes Show 2 more Applies to: SQL Server You must make several important design decisions when creating a user-defined type (UDT) to be installed in SQL Server. For most UDTs, creating the UDT as a structure is recommended, although creating it as...
[Microsoft.SqlServer.Server.SqlUserDefinedType(Format.UserDefined, MaxByteSize=1024)] publicstructPerson : INullable, IBinarySerialize { publicoverridestringToString() { //用您的代码替换下列代码 returnFormatU(); } publicboolIsNull { get
using System; using System.Data.Sql; using System.Data.SqlTypes; using System.Text.RegularExpressions; using System.Runtime.InteropServices; using System.Globalization; [Serializable] [Microsoft.SqlServer.Server.SqlUserDefinedType(Microsoft.SqlServer.Server.Format.Native, IsByteOrdered = false)] public str...
For more information, see CREATE TYPE (Transact-SQL) in the SQL Server documentation. MySQL Usage Amazon Aurora MySQL-Compatible Edition (Aurora MySQL) 5.7 doesn’t support user defined types and user defined table valued parameters. The current documentation doesn’t ind...
步骤：1)T-SQL查询自定义数据类型:SELECT * FROM sys.types where is_user_defined=12)创建自定义数据类型语法:-- ===-- Create User-defined Table Type-- ===USE <database_name,sysname,AdventureWorks>GO-- Create the data typeCREATE TYPE <schema_name,sysname,dbo>.<type_name...
[Microsoft.SqlServer.Server.SqlUserDefinedType(Format.Native)] 修改为: [Microsoft.SqlServer.Server.SqlUserDefinedType(Format.UserDefined, MaxByteSize=10)] 在这里,对于用户自定义的格式序列化,指定 MaxByteSize 属性(表示聚合实例的最大大小的 Int32 值)是必须的;另外,此属性的最大允许值 (8000) 由 Max...
public SqlUserDefinedTypeAttribute (Microsoft.SqlServer.Server.Format format); 参数 format Format Format 值之一,表示类型的序列化格式。 示例 C# 复制 // using Microsoft.SqlServer.Server; [SqlUserDefinedType(Format.Native, MaxByteSize = 8000)] public class SampleType { //... } ...