System.Data.DbType与各类数据库的数据类型的映射关系
有如下类型的映射对照：
- System.Data.SqlClient.SqlDbType
- System.Data.OleDb.OleDbType
- System.Data.Odbc.OdbcType
- System.Data.OracleClient.OracleType
- Oracle.ManagedDataAccess.ClientOracleDbType
格式：
DbType.枚举名（枚举值） = DbType.枚举名（枚举值）
1、与 System.Data.SqlClient.SqlDbType转换
System.Data.SqlClient.SqlDbType.BigInt(0) = System.Data.DbType.Int64(12)
System.Data.SqlClient.SqlDbType.Binary(1) = System.Data.DbType.Binary(1)
System.Data.SqlClient.SqlDbType.Bit(2) = System.Data.DbType.Boolean(3)
System.Data.SqlClient.SqlDbType.Char(3) = System.Data.DbType.AnsiStringFixedLength(22)
System.Data.SqlClient.SqlDbType.DateTime(4) = System.Data.DbType.DateTime(6)
System.Data.SqlClient.SqlDbType.Decimal(5) = System.Data.DbType.Decimal(7)
System.Data.SqlClient.SqlDbType.Float(6) = System.Data.DbType.Double(8)
System.Data.SqlClient.SqlDbType.Image(7) = System.Data.DbType.Binary(1)
System.Data.SqlClient.SqlDbType.Int(8) = System.Data.DbType.Int32(11)
System.Data.SqlClient.SqlDbType.Money(9) = System.Data.DbType.Currency(4)
System.Data.SqlClient.SqlDbType.NChar(10) = System.Data.DbType.StringFixedLength(23)
System.Data.SqlClient.SqlDbType.NText(11) = System.Data.DbType.String(16)
System.Data.SqlClient.SqlDbType.NVarChar(12) = System.Data.DbType.String(16)
System.Data.SqlClient.SqlDbType.Real(13) = System.Data.DbType.Single(15)
System.Data.SqlClient.SqlDbType.UniqueIdentifier(14) = System.Data.DbType.Guid(9)
System.Data.SqlClient.SqlDbType.SmallDateTime(15) = System.Data.DbType.DateTime(6)
System.Data.SqlClient.SqlDbType.SmallInt(16) = System.Data.DbType.Int16(10)
System.Data.SqlClient.SqlDbType.SmallMoney(17) = System.Data.DbType.Currency(4)
System.Data.SqlClient.SqlDbType.Text(18) = System.Data.DbType.AnsiString(0)
System.Data.SqlClient.SqlDbType.Timestamp(19) = System.Data.DbType.Binary(1)
System.Data.SqlClient.SqlDbType.TinyInt(20) = System.Data.DbType.Byte(2)
System.Data.SqlClient.SqlDbType.VarBinary(21) = System.Data.DbType.Binary(1)
System.Data.SqlClient.SqlDbType.VarChar(22) = System.Data.DbType.AnsiString(0)
System.Data.SqlClient.SqlDbType.Variant(23) = System.Data.DbType.Object(13)
System.Data.SqlClient.SqlDbType.Xml(25) = System.Data.DbType.Xml(25)
System.Data.SqlClient.SqlDbType.Udt(29) = System.Data.DbType.Object(13)
System.Data.SqlClient.SqlDbType.Structured(30) = System.Data.DbType.Object(13)
System.Data.SqlClient.SqlDbType.Date(31) = System.Data.DbType.Date(5)
System.Data.SqlClient.SqlDbType.Time(32) = System.Data.DbType.Time(17)
System.Data.SqlClient.SqlDbType.DateTime2(33) = System.Data.DbType.DateTime2(26)
System.Data.SqlClient.SqlDbType.DateTimeOffset(34) = System.Data.DbType.DateTimeOffset(27)
2、与 System.Data.OleDb.OleDbType转换
System.Data.OleDb.OleDbType.Empty(0) = System.Data.DbType.Object(13)
System.Data.OleDb.OleDbType.SmallInt(2) = System.Data.DbType.Int16(10)
System.Data.OleDb.OleDbType.Integer(3) = System.Data.DbType.Int32(11)
System.Data.OleDb.OleDbType.Single(4) = System.Data.DbType.Single(15)
System.Data.OleDb.OleDbType.Double(5) = System.Data.DbType.Double(8)
System.Data.OleDb.OleDbType.Currency(6) = System.Data.DbType.Currency(4)
System.Data.OleDb.OleDbType.Date(7) = System.Data.DbType.DateTime(6)
System.Data.OleDb.OleDbType.BSTR(8) = System.Data.DbType.String(16)
System.Data.OleDb.OleDbType.IDispatch(9) = System.Data.DbType.Object(13)
System.Data.OleDb.OleDbType.Error(10) = System.Data.DbType.Int32(11)
System.Data.OleDb.OleDbType.Boolean(11) = System.Data.DbType.Boolean(3)
System.Data.OleDb.OleDbType.Variant(12) = System.Data.DbType.Object(13)
System.Data.OleDb.OleDbType.IUnknown(13) = System.Data.DbType.Object(13)
System.Data.OleDb.OleDbType.Decimal(14) = System.Data.DbType.Decimal(7)
System.Data.OleDb.OleDbType.TinyInt(16) = System.Data.DbType.SByte(14)
System.Data.OleDb.OleDbType.UnsignedTinyInt(17) = System.Data.DbType.Byte(2)
System.Data.OleDb.OleDbType.UnsignedSmallInt(18) = System.Data.DbType.UInt16(18)
System.Data.OleDb.OleDbType.UnsignedInt(19) = System.Data.DbType.UInt32(19)
System.Data.OleDb.OleDbType.BigInt(20) = System.Data.DbType.Int64(12)
System.Data.OleDb.OleDbType.UnsignedBigInt(21) = System.Data.DbType.UInt64(20)
System.Data.OleDb.OleDbType.Filetime(64) = System.Data.DbType.DateTime(6)
System.Data.OleDb.OleDbType.Guid(72) = System.Data.DbType.Guid(9)
System.Data.OleDb.OleDbType.Binary(128) = System.Data.DbType.Binary(1)
System.Data.OleDb.OleDbType.Char(129) = System.Data.DbType.AnsiStringFixedLength(22)
System.Data.OleDb.OleDbType.WChar(130) = System.Data.DbType.StringFixedLength(23)
System.Data.OleDb.OleDbType.Numeric(131) = System.Data.DbType.Decimal(7)
System.Data.OleDb.OleDbType.DBDate(133) = System.Data.DbType.Date(5)
System.Data.OleDb.OleDbType.DBTime(134) = System.Data.DbType.Time(17)
System.Data.OleDb.OleDbType.DBTimeStamp(135) = System.Data.DbType.DateTime(6)
System.Data.OleDb.OleDbType.PropVariant(138) = System.Data.DbType.Object(13)
System.Data.OleDb.OleDbType.VarNumeric(139) = System.Data.DbType.VarNumeric(21)
System.Data.OleDb.OleDbType.VarChar(200) = System.Data.DbType.AnsiString(0)
System.Data.OleDb.OleDbType.LongVarChar(201) = System.Data.DbType.AnsiString(0)
System.Data.OleDb.OleDbType.VarWChar(202) = System.Data.DbType.String(16)
System.Data.OleDb.OleDbType.LongVarWChar(203) = System.Data.DbType.String(16)
System.Data.OleDb.OleDbType.VarBinary(204) = System.Data.DbType.Binary(1)
System.Data.OleDb.OleDbType.LongVarBinary(205) = System.Data.DbType.Binary(1)
3、与System.Data.Odbc.OdbcType转换
System.Data.Odbc.OdbcType.BigInt(1) = System.Data.DbType.Int64(12)
System.Data.Odbc.OdbcType.Binary(2) = System.Data.DbType.Binary(1)
System.Data.Odbc.OdbcType.Bit(3) = System.Data.DbType.Boolean(3)
System.Data.Odbc.OdbcType.Char(4) = System.Data.DbType.AnsiStringFixedLength(22)
System.Data.Odbc.OdbcType.DateTime(5) = System.Data.DbType.DateTime(6)
System.Data.Odbc.OdbcType.Decimal(6) = System.Data.DbType.Decimal(7)
System.Data.Odbc.OdbcType.Numeric(7) = System.Data.DbType.Decimal(7)
System.Data.Odbc.OdbcType.Double(8) = System.Data.DbType.Double(8)
System.Data.Odbc.OdbcType.Image(9) = System.Data.DbType.Binary(1)
System.Data.Odbc.OdbcType.Int(10) = System.Data.DbType.Int32(11)
System.Data.Odbc.OdbcType.NChar(11) = System.Data.DbType.StringFixedLength(23)
System.Data.Odbc.OdbcType.NText(12) = System.Data.DbType.String(16)
System.Data.Odbc.OdbcType.NVarChar(13) = System.Data.DbType.String(16)
System.Data.Odbc.OdbcType.Real(14) = System.Data.DbType.Single(15)
System.Data.Odbc.OdbcType.UniqueIdentifier(15) = System.Data.DbType.Guid(9)
System.Data.Odbc.OdbcType.SmallDateTime(16) = System.Data.DbType.DateTime(6)
System.Data.Odbc.OdbcType.SmallInt(17) = System.Data.DbType.Int16(10)
System.Data.Odbc.OdbcType.Text(18) = System.Data.DbType.AnsiString(0)
System.Data.Odbc.OdbcType.Timestamp(19) = System.Data.DbType.Binary(1)
System.Data.Odbc.OdbcType.TinyInt(20) = System.Data.DbType.Byte(2)
System.Data.Odbc.OdbcType.VarBinary(21) = System.Data.DbType.Binary(1)
System.Data.Odbc.OdbcType.VarChar(22) = System.Data.DbType.AnsiString(0)
System.Data.Odbc.OdbcType.Date(23) = System.Data.DbType.Date(5)
System.Data.Odbc.OdbcType.Time(24) = System.Data.DbType.Time(17)
4、与System.Data.OracleClient.OracleType转换
System.Data.OracleClient.OracleType.BFile(1) = System.Data.DbType.Binary(1)
System.Data.OracleClient.OracleType.Blob(2) = System.Data.DbType.Binary(1)
System.Data.OracleClient.OracleType.Char(3) = System.Data.DbType.AnsiStringFixedLength(22)
System.Data.OracleClient.OracleType.Clob(4) = System.Data.DbType.AnsiString(0)
System.Data.OracleClient.OracleType.Cursor(5) = System.Data.DbType.Object(13)
System.Data.OracleClient.OracleType.DateTime(6) = System.Data.DbType.DateTime(6)
System.Data.OracleClient.OracleType.IntervalDayToSecond(7) = System.Data.DbType.Object(13)
System.Data.OracleClient.OracleType.IntervalYearToMonth(8) = System.Data.DbType.Int32(11)
System.Data.OracleClient.OracleType.LongRaw(9) = System.Data.DbType.Binary(1)
System.Data.OracleClient.OracleType.LongVarChar(10) = System.Data.DbType.AnsiString(0)
System.Data.OracleClient.OracleType.NChar(11) = System.Data.DbType.StringFixedLength(23)
System.Data.OracleClient.OracleType.NClob(12) = System.Data.DbType.String(16)
System.Data.OracleClient.OracleType.Number(13) = System.Data.DbType.VarNumeric(21)
System.Data.OracleClient.OracleType.NVarChar(14) = System.Data.DbType.String(16)
System.Data.OracleClient.OracleType.Raw(15) = System.Data.DbType.Binary(1)
System.Data.OracleClient.OracleType.RowId(16) = System.Data.DbType.AnsiString(0)
System.Data.OracleClient.OracleType.Timestamp(18) = System.Data.DbType.DateTime(6)
System.Data.OracleClient.OracleType.TimestampLocal(19) = System.Data.DbType.DateTime(6)
System.Data.OracleClient.OracleType.TimestampWithTZ(20) = System.Data.DbType.DateTime(6)
System.Data.OracleClient.OracleType.VarChar(22) = System.Data.DbType.AnsiString(0)
System.Data.OracleClient.OracleType.Byte(23) = System.Data.DbType.Byte(2)
System.Data.OracleClient.OracleType.UInt16(24) = System.Data.DbType.UInt16(18)
System.Data.OracleClient.OracleType.UInt32(25) = System.Data.DbType.UInt32(19)
System.Data.OracleClient.OracleType.SByte(26) = System.Data.DbType.SByte(14)
System.Data.OracleClient.OracleType.Int16(27) = System.Data.DbType.Int16(10)
System.Data.OracleClient.OracleType.Int32(28) = System.Data.DbType.Int32(11)
System.Data.OracleClient.OracleType.Float(29) = System.Data.DbType.Single(15)
System.Data.OracleClient.OracleType.Double(30) = System.Data.DbType.Double(8)
5、与Oracle.ManagedDataAccess.ClientOracleDbType转换
Oracle.ManagedDataAccess.ClientOracleDbType.BFile = System.Data.DbType.Binary(1)
Oracle.ManagedDataAccess.ClientOracleDbType.Blob = 102,
Oracle.ManagedDataAccess.ClientOracleDbType.Byte = 103,
Oracle.ManagedDataAccess.ClientOracleDbType.Char = 104,
Oracle.ManagedDataAccess.ClientOracleDbType.Clob = 105,
Oracle.ManagedDataAccess.ClientOracleDbType.Date = 106,
Oracle.ManagedDataAccess.ClientOracleDbType.Decimal = 107,
Oracle.ManagedDataAccess.ClientOracleDbType.Double = 108,
Oracle.ManagedDataAccess.ClientOracleDbType.Long = 109,
Oracle.ManagedDataAccess.ClientOracleDbType.LongRaw = 110,
Oracle.ManagedDataAccess.ClientOracleDbType.Int16 = 111,
Oracle.ManagedDataAccess.ClientOracleDbType.Int32 = 112,
Oracle.ManagedDataAccess.ClientOracleDbType.Int64 = 113,
Oracle.ManagedDataAccess.ClientOracleDbType.IntervalDS = 114,
Oracle.ManagedDataAccess.ClientOracleDbType.IntervalYM = 115,
Oracle.ManagedDataAccess.ClientOracleDbType.NClob = 116,
Oracle.ManagedDataAccess.ClientOracleDbType.NChar = 117,
Oracle.ManagedDataAccess.ClientOracleDbType.NVarchar2 = 119,
Oracle.ManagedDataAccess.ClientOracleDbType.Raw = 120,
Oracle.ManagedDataAccess.ClientOracleDbType.RefCursor = 121,
Oracle.ManagedDataAccess.ClientOracleDbType.Single = 122,
Oracle.ManagedDataAccess.ClientOracleDbType.TimeStamp = 123,
Oracle.ManagedDataAccess.ClientOracleDbType.TimeStampLTZ = 124,
Oracle.ManagedDataAccess.ClientOracleDbType.TimeStampTZ = 125,
Oracle.ManagedDataAccess.ClientOracleDbType.Varchar2 = 126,
Oracle.ManagedDataAccess.ClientOracleDbType.XmlType = 127,
Oracle.ManagedDataAccess.ClientOracleDbType.BinaryDouble = 132,
Oracle.ManagedDataAccess.ClientOracleDbType.BinaryFloat = 133,
Oracle.ManagedDataAccess.ClientOracleDbType.Boolean = 134,
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