MS SQL Server
当从MS SQL Server数据库（DB）生成XML Schema时，MS SQL Server DB数据类型会被转换为下表中列出的XML Schema数据类型。
XML Schema数据类型 | MS SQL Server数据类型 |
ID | uniqueidentifier |
xs:string | If no facets |
| { if UNICODE nvarchar (255) |
| else varchar (255) } |
| else |
| { if UNICODE |
| (Size = either length or maxLength) |
| If Size <= 4000 |
| if FacetLengthIsSet then nChar |
| else nVarChar |
| if Size <= 1073741823 then nText } |
| else |
| { if NON-UNICODE |
| (Size = either length or maxLength) |
| If Size <= 8000 |
| if FacetLengthIsSet then char |
| else varchar |
| if Size <= 2147483647 then text } |
xs:normalizedString | Same as xs:string |
xs:token | Same as xs:string |
xs:Name | Same as xs:string |
xs:NCName | Same as xs:string |
xs:anyURi | Same as xs:string |
xs:QName | Same as xs:string |
xs:NOTATION | Same as xs:string |
xs:boolean | bit |
xs:float | real |
xs:double | float |
xs:decimal | decimal |
xs:duration | datetime |
xs:dateTime | datetime |
xs:time | datetime |
xs:date | datetime |
xs:gYearMonth | datetime |
xs:gYear | datetime |
xs:gMonthDay | datetime |
xs:gDay | datetime |
xs:gMonth | datetime |
xs:hexBinary | If no facets varbinary (255) |
| (Size = either length or maxLength |
| If Size <= 8000 |
| if FacetLengthIsSet then binary |
| else varbinary |
| if Size <= 2147483647 then image |
xs:base64Binary | Same as xs:hexBinary |
xs:integer | int |
xs:int | int |
xs:negativeInteger | Int (constrained to {...,-2,-1}) |
xs:positiveInteger | Int (constrained to {1,2,...}) |
xs:nonNegativeInteger | int (constrained to {0,1,2,...}) |
xs:nonPositiveInteger | int (constrained to {...,-2,-1,0}) |
xs:unsignedInt | int (additional constraints) |
xs:short | smallint |
xs:unsignedShort | smallint (additional constraints) |
xs:long | bigint |
xs:unsignedLong | bigint (additional constraints) |
xs:byte | tinyint |
xs:unsignedByte | tinyint (additional constraints) |