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ODBC Data Type Mappings (ADO.NET)

The following table shows the inferred .NET Framework type for data types from the .NET Framework Data Provider for ODBC (System.Data.Odbc). The typed accessor methods for the OdbcDataReader are also listed.

ODBC type

.NET Framework type

.NET Framework typed accessor

SQL_BIGINT

Int64

GetInt64()

SQL_BINARY

Byte[]

GetBytes()

SQL_BIT

Boolean

GetBoolean()

SQL_CHAR

String

Char[]

GetString()

GetChars()

SQL_DECIMAL

Decimal

GetDecimal()

SQL_DOUBLE

Double

GetDouble()

SQL_GUID

Guid

GetGuid()

SQL_INTEGER

Int32

GetInt32()

SQL_LONG_VARCHAR

String

Char[]

GetString()

GetChars()

SQL_LONGVARBINARY

Byte[]

GetBytes()

SQL_NUMERIC

Decimal

GetDecimal()

SQL_REAL

Single

GetFloat()

SQL_SMALLINT

Int16

GetInt16()

SQL_TINYINT

Byte

GetByte()

SQL_TYPE_TIMES

DateTime

GetDateTime()

SQL_TYPE_TIMESTAMP

DateTime

GetDateTime()

SQL_VARBINARY

Byte[]

GetBytes()

SQL_WCHAR

String

Char[]

GetString()

GetChars()

SQL_WLONGVARCHAR

String

Char[]

GetString()

GetChars()

SQL_WVARCHAR

String

Char[]

GetString()

GetChars()

See Also

Other Resources

Retrieving and Modifying Data in ADO.NET

ADO.NET Managed Providers and DataSet Developer Center