INullable Interface

Definition

Namespace:

System.Data.SqlTypes

Assembly:

System.Data.Common.dll

All the System.Data.SqlTypes objects and structures implement the INullable interface.

public interface class INullable

public interface INullable

type INullable = interface

Public Interface INullable

Derived

System.Data.OracleClient.OracleBFile

System.Data.OracleClient.OracleBinary

System.Data.OracleClient.OracleDateTime

System.Data.OracleClient.OracleLob

System.Data.OracleClient.OracleMonthSpan

System.Data.OracleClient.OracleNumber

System.Data.OracleClient.OracleString

System.Data.OracleClient.OracleTimeSpan

System.Data.SqlTypes.SqlBinary

System.Data.SqlTypes.SqlBoolean

System.Data.SqlTypes.SqlByte

System.Data.SqlTypes.SqlBytes

System.Data.SqlTypes.SqlChars

System.Data.SqlTypes.SqlDateTime

System.Data.SqlTypes.SqlDecimal

System.Data.SqlTypes.SqlDouble

System.Data.SqlTypes.SqlGuid

System.Data.SqlTypes.SqlInt16

System.Data.SqlTypes.SqlInt32

System.Data.SqlTypes.SqlInt64

System.Data.SqlTypes.SqlMoney

System.Data.SqlTypes.SqlSingle

System.Data.SqlTypes.SqlString

System.Data.SqlTypes.SqlXml

Remarks

SqlTypes can contain the value null and use database semantics for evaluating nulls. Nulls are used in a database to indicate an unknown or missing value.

Properties

IsNull

Indicates whether a structure is null. This property is read-only.

See also

• Handling Null Values
• SQL Server Data Types and ADO.NET