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() |