For example, text columns are transformed into varchar ( max) columns, image ones are turned into varbinary ( max) ones, and it unbinds XML schemas since they are not supported yet by SQL Azure. 比如说,将text列转换为varchar(max),将image转换为varbinary(max),同时它还会取消对XMLschema的绑定,因为SQLAzure并不支持它。
Invalidates this session then unbinds any objects bound to it. 该方法使会话有效,并接触绑定它的任何对象。