ODBC
当从ODBC数据库（DB）生成XML Schema时，ODBC DB数据类型会被转换为下表中列出的XML Schema数据类型。
ODBC数据类型 | XML Schema数据类型 |
SQL_GUID | xs:ID |
SQL_CHAR | xs:string |
SQL_VARCHAR | xs:string |
SQL_LONGVARCHAR | xs:string |
SQL_BIT | xs:boolean |
SQL_REAL | xs:float |
SQL_DOUBLE | xs:double |
SQL_DECIMAL | xs:decimal |
SQL_TIMESTAMP | xs:dateTime |
SQL_DATE | xs:date |
SQL_BINARY | xs:base64Binary |
SQL_VARBINARY | xs:base64Binary |
SQL_LONGVARBINARY | xs:base64Binary |
SQL_INTEGER | xs:integer |
SQL_SMALLINT | xs:short |
SQL_BIGINT | xs:long |
SQL_TINYINT | xs:byte |