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ADO 数据类型转换表 oledbtype sqldbtype (二)

2008-04-09 18:51 666 查看
adIDispatch9Object

OleDbType.IDispatch 11
adInteger3Int32

SqlDbType.Int
10
OleDbType.Integer 11
identity
4


int

4

4

AutoNumber

Long Integer
Int
7
Long
adIUnknown13Object

OleDbType.IUnknown 11
adLongVarBinary205Byte[]

SqlDbType.VarBinary
10
OleDbType.LongVarBinary

11
image2147483647OLEObjectLong Raw
7

Blob 8
Variant
adLongVarChar201String

SqlDbType.VarChar
10
OleDbType.LongVarChar 11
text2147483647Memo
1
,
2


Hyperlink
1
, 2
Long
7

Clob 8
String
adLongVarWChar203String

SqlDbType.NText
10
OleDbType.VarWChar 11
ntext 51073741823Memo
3


Hyperlink 3
NClob 8String
adNumeric131Decimal

SqlDbType.Decimal
10
OleDbType.Decimal 11
decimal

numeric

9

Decimal 3Decimal

Integer

Number

SmallInt
Variant 6
adPropVariant138Object

OleDbType.PropVariant 11
adSingle4Single

SqlDbType.Real
10
OleDbType.Single 11
real4SingleSingle
adSmallInt2Int16,

SqlDbType.SmallInt
10
OleDbType.SmallInt 11
smallInt2IntegerInteger
adTinyInt16Byte

OleDbType.TinyInt 11
adUnsignedBigInt21UInt64

OleDbType.UnsignedBigInt 11
adUnsignedInt19UInt32

OleDbType.UnsignedInt 11
adUnsignedSmallInt18UInt16

OleDbType.UnsignedSmallInt 11
adUnsignedTinyInt17Byte

SqlDbType.TinyInt
10
OleDbType.UnsignedTinyInt
11
tinyInt1ByteByte
adUserDefined132
adVarBinary204Byte[]

SqlDbType.VarBinary
10
OleDbType.VarBinary 11
varbinary50ReplicationID 1Variant
adVarChar200String

SqlDbType.VarChar
10
OleDbType.VarChar 11
varcharXText
1
, 2
VarCharString
adVariant12Object

SqlDbType.Variant
10


OleDbType.Variant 11
sql_variant 98016VarChar2Variant
adVarNumeric139OleDbType.VarNumeric 11
adVarWChar202String

SqlDbType.NVarChar
10
OleDbType.VarWChar 11
nvarchar 5XText 3NVarChar2String
adWChar130String

SqlDbType.NChar
10
OleDbType.WChar 11
nchar 5XString
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