Data Type Mappings in Native XML Web Services
This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
The following table shows the mapping of SQL types to XSD types.
SQL type |
XSD type |
Type restrictions |
|---|---|---|
BigInt |
xsd:long |
|
Binary |
xsd:base64Binary |
|
Bit |
xsd:boolean |
|
Char |
xsd:string |
|
DateTime |
xsd:dateTime |
<xsd:pattern value="((000[1-9])|(00[1-9][0-9])|(0[1-9][0-9]{2})|([1-9][0-9]{3}))-((0[1-9])|(1[0,1,2]))-((0[1-9])|([1,2][0-9])|(3[0,1]))T(([0,1][0-9])|(2[0-3]))(:[0-5][0-9]){2}(\.[0-9]{2}[0,3,7])?" /> <xsd:maxInclusive value="9999-12-31T23:59:59.997"/> <xsd:minInclusive value="1753-01-01T00:00:00.000"/> |
Decimal |
xsd:decimal |
|
Float(53) |
xsd:double |
|
GUID (same as UniqueIndentifier) |
xsd:string |
<xsd:pattern value="([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})|(\{[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\})" /> |
Image |
xsd:base64Binary |
|
Int |
xsd:int |
|
Money |
xsd:decimal |
<xsd:totalDigits value="19"/> <xsd:fractionDigits value="4"/> <xsd:maxInclusive value="922337203685477.5807"/> <xsd:minInclusive value="-922337203685477.5808"/> |
NChar |
xsd:string |
|
NText |
xsd:string |
|
Numeric |
xsd:decimal |
|
NVarChar |
xsd:string |
|
Real |
xsd:float |
|
SmallInt |
xsd:short |
|
SmallDateTime |
xsd:dateTime |
<xsd:pattern value="((000[1-9])|(00[1-9][0-9])|(0[1-9][0-9]{2})|([1-9][0-9]{3}))-((0[1-9])|(1[0,1,2]))-((0[1-9])|([1,2][0-9])|(3[0,1]))T(([0,1][0-9])|(2[0-3]))(:[0-5][0-9])(:00)" /> <xsd:maxInclusive value="2079-06-06T23:59:00"/><xsd:minInclusive value="1900-01-01T00:00:00"/> |
SmallMoney |
xsd:decimal |
<xsd:totalDigits value="10"/> <xsd:fractionDigits value="4"/> <xsd:maxInclusive value="214748.3647"/><xsd:minInclusive value="-214748.3648"/> |
Sql_Variant |
xsd:anyType |
|
Text |
xsd:string |
|
TimeStamp |
xsd:base64Binary (in SQL Server 2005 or later compatibility mode); xsd:long (in SQL Server 2000 compatibility mode) |
<xsd:maxLength>8</xsd:maxLength> |
TinyInt |
xsd:unsignedByte |
|
UDT (CLR style) |
xsd:base64Binary (in SQL Server 2005) |
Additional information about the actual type is provided within facets. |
UDT (old style) |
Mapped to original base type |
|
VarBinary |
xsd:base64Binary |
|
VarChar |
xsd:string |
|
XML |
xsd:any |
|
XML (typed) |
xsd:any |
XML schema that the XML is typed to is returned. |
Data Type Issues Specific to Parameter Facets in a SOAP Request
When you send ad hoc query requests, you can specify parameters. In specifying parameters, you can also optionally add parameter facets. These facets can be specified on the <SqlParameter> element node or <Value> element node when you send an ad hoc query request. For information about parameter facets, see SOAP Request Message Structure.
The following table shows how xsi:type maps to SQL types. Note that xsi:type is one of the facets that you can add to the <Value> element node in constructing the SOAP request.
Note
Data types added beginning in SQL Server 2008 are not supported.
xsi:type |
Sql Type |
|---|---|
sqltypes:bigint |
BigInt |
sqltypes:binary |
Binary |
sqltypes:bit |
Bit |
sqltypes:char |
Char |
sqltypes:datetime |
DateTime |
sqltypes:decimal |
Decimal |
sqltypes:float |
Float |
sqltypes:image |
Image |
sqltypes:int |
Int |
sqltypes:money |
Money |
sqltypes:nchar |
NChar |
sqltypes:ntext |
NText |
sqltypes:numeric |
Numeric |
sqltypes:nvarchar |
NVarChar |
sqltypes:real |
Real |
sqltypes:smalldatetime |
SmallDateTime |
sqltypes:smallint |
SmallInt |
sqltypes:smallmoney |
SmallMoney |
sqltypes:text |
Text |
sqltypes:timestamp |
Timestamp |
sqltypes:tinyint |
TinyInt |
sqltypes:uniqueidentifier |
UniqueIdentifier |
sqltypes:varbinary |
VarBinary |
sqltypes:varchar |
VarChar |
sqltypes:xml |
Xml |
xsd:anyType |
Xml |
xsd:boolean |
Bit |
xsd:datetime |
DateTime |
xsd:decimal |
Decimal |
xsd:double |
Float |
xsd:float |
Real |
xsd:int |
Int |
xsd:long |
BigInt |
xsd:short |
SmallInt |
xsd:string |
NVarchar |
xsd:unsignedByte |
TinyInt |
xsd:base64Binary |
varbinary |
The following table lists the possible values for the SqlDbType facet that you can add to the <SqlParameter> element node when you construct an ad hoc query request.
BigInt |
SmallDateTime |
Binary |
SmallInt |
Bit |
SmallMoney |
Char |
Text |
DateTime |
Timestamp |
Decimal |
TinyInt |
Float |
Udt |
Image |
UniqueIdentifier |
Int |
VarBinary |
Money |
VarChar |
NChar |
Variant |
NText |
Xml |
NVarChar |
|
Real |