It considered not only lossless transformation of database structure, but also dataconstraint storage.
解决了只注意数据结构的无损转换，而忽略数据约束的保存问题。
2
A user dataconstraint establishes a requirement that the constrained requests be received over a protected transport layer connection.
用户数据约束(user data constraint)满足了受限的请求应该经由受防护的传输层链接进行传输的需求。
3
Experimental results on a range of datasets show that our approach improves duplicate accuracy significantly over traditional techniques and has a good ability of noise dataconstraint.