MS SQL Server Data Types String Data Types Data typeDescriptionMax char lengthStorage char(n)Fixed-length non-Unicode character data (n must be between 1 and 8000)8,000n bytes (uses one byte for each character)
使用类的DataType一个静态成员,例如Int。这实际上将返回对象的DataType实例。 DataType对象具有定义数据类型的几个属性。 例如,该SqlDataType属性指定 SQL Server 数据类型。 表示 SQL Server 数据类型的常量值列在SqlDataType枚举中。 这是指诸如varchar、nchar、currency、integer、float和datetime这样的数据类型。
Visual Basic data typeSQL Server data type Long,Integer,Byte,Boolean,Objectint Double,Singlefloat Currencymoney Datedatetime Stringwith 4,000 characters or lessvarchar/nvarchar Stringwith more than 4,000 characterstext/ntext One-dimensionalByte()array with 8,000 bytes or lessvarbinary ...
Data types that represent monetary or currency values. Themoneyandsmallmoneydata types are accurate to a ten-thousandth of the monetary units that they represent. FLOAT 类型表示浮点数(非精确数),可以接收以科学记数法表示的浮点数。FLOAT 类型比较特殊,定义时甚至可以给它指定精度。在实际应用中应该尽量避...
SQL Server data typeVisual Basic data type char, varchar, text, nvarchar, ntext String decimal, numeric String bit Boolean binary, varbinary, image One-dimensional Byte() array int Long smallint Integer tinyint Byte float Double real Single money, smallmoney Currency datetime, smalldatetime Date ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric Data types that represent monetary or currency values. Remarks Expand table Data typeRangeStorage money -922,337,203,685,477.5808 to 922,...
적용 대상: SQL Server 2008(10.0.x) 이상 SQL 복사 -- Use the OPENDATASOURCE function to specify the remote data source. -- Specify a valid server name for Data Source using the format -- server_name or server_nameinstance_name. INSERT INTO OPENDATASOURCE('SQLNCLI', 'Dat...
Table of content What are SQL Data Types? Defining a Data Type Types of SQL Data Types Data Types in MySQL, SQL Server, Oracle and MS Access Databases MySQL Data Types MS SQL Server Data Types Oracle Data Types MS Access Data Types ...
UserDefinedTableTypeA SQL Server common language runtime (CLR) user-defined table type. HierarchyIdHierarchyID type represents data in a hierarchy structure. For more information, see教程:使用 hierarchyid 数据类型 GeometryGeometry spatial type represents data in a Euclidean (flat) coordinate system. ...
使用用户定义的格式实现 UDT 时,必须实现Read和Write方法,实现Microsoft.SqlServer.Server.IBinarySerialize接口来处理序列化和反序列化 UDT 数据。 还必须指定Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute的MaxByteSize属性。 货币UDT CurrencyUDT 包含在可以使用 SQL Server 安装的 CLR 示例中。