Members 

Description 

BigInt 

System.Int64. A 64-bit signed integer. 

Binary 

System.Array of type System.Byte. A fixed-length stream of binary data ranging between 1 and 8,000 bytes. 

Bit 

System.Boolean. An unsigned numeric value that can be 0, 1, or null. 

Char 

System.String. A fixed-length stream of non-Unicode characters ranging between 1 and 8,000 characters. 

DateTime 

System.DateTime. Date and time data ranging in value from January 1, 1753 to December 31, 9999 to an accuracy of 3.33 milliseconds. 

Decimal 

System.Decimal. A fixed precision and scale numeric value between -10 38 -1 and 10 38 -1. 

Float 

System.Double. A floating point number within the range of -1.79E +308 through 1.79E +308. 

Image 

System.Array of type System.Byte. A variable-length stream of binary data ranging from 0 to 2 31 -1 (or 2,147,483,647) bytes. 

Int 

System.Int32. A 32-bit signed integer. 

Money 

System.Decimal. A currency value ranging from -2 63 (or -9,223,372,036,854,775,808) to 2 63 -1 (or +9,223,372,036,854,775,807) with an accuracy to a ten-thousandth of a currency unit. 

NChar 

System.String. A fixed-length stream of Unicode characters ranging between 1 and 4,000 characters. 

NText 

System.String. A variable-length stream of Unicode data with a maximum length of 2 30 - 1 (or 1,073,741,823) characters. 

NVarChar 

System.String. A variable-length stream of Unicode characters ranging between 1 and 4,000 characters. Implicit conversion fails if the string is greater than 4,000 characters. Explicitly set the object when working with strings longer than 4,000 characters. Use System.Data.MsSql.NVarChar when the database column is nvarchar(max). 

Real 

System.Single. A floating point number within the range of -3.40E +38 through 3.40E +38. 

UniqueIdentifier 

System.Guid. A globally unique identifier (or GUID). 

SmallDateTime 

System.DateTime. Date and time data ranging in value from January 1, 1900 to June 6, 2079 to an accuracy of one minute. 

SmallInt 

System.Int16. A 16-bit signed integer. 

SmallMoney 

System.Decimal. A currency value ranging from -214,748.3648 to +214,748.3647 with an accuracy to a ten-thousandth of a currency unit. 

Text 

System.String. A variable-length stream of non-Unicode data with a maximum length of 2 31 -1 (or 2,147,483,647) characters. 

Timestamp 

System.Array of type System.Byte. Automatically generated binary numbers, which are guaranteed to be unique within a database. timestamp is used typically as a mechanism for version-stamping table rows. The storage size is 8 bytes. 

TinyInt 

System.Byte. An 8-bit unsigned integer. 

VarBinary 

System.Array of type System.Byte. A variable-length stream of binary data ranging between 1 and 8,000 bytes. Implicit conversion fails if the byte array is greater than 8,000 bytes. Explicitly set the object when working with byte arrays larger than 8,000 bytes. 

VarChar 

System.String. A variable-length stream of non-Unicode characters ranging between 1 and 8,000 characters. Use System.Data.MsSql.VarChar when the database column is varchar(max). 

Variant 

System.Object. A special data type that can contain numeric, string, binary, or date data as well as the SQL Server values Empty and Null, which is assumed if no other type is declared. 

Xml 

An XML value. Obtain the XML as a string using the System.Data.SqlClient.SqlDataReader.GetValue(System.Int32) method or System.Data.SqlTypes.SqlXml.Value property, or as an System.Xml.XmlReader by calling the System.Data.SqlTypes.SqlXml.CreateReader() method. 

Udt 

A SQL Server 2005 user-defined type (UDT). 

Structured 

A special data type for specifying structured data contained in table-valued parameters. 

Date 

Date data ranging in value from January 1,1 AD through December 31, 9999 AD. 

Time 

Time data based on a 24-hour clock. Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds. Corresponds to a SQL Server time value. 

DateTime2 

Date and time data. Date value range is from January 1,1 AD through December 31, 9999 AD. Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds. 

DateTimeOffset 

Date and time data with time zone awareness. Date value range is from January 1,1 AD through December 31, 9999 AD. Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds. Time zone value range is -14:00 through +14:00.