The lion's share of datalog features have been incorporated into the SQL3 standard proposal. However, most SQL manuals still recommend to implement user-de ned conditions for data integrity nondeclaratively, by triggers or stored procedures. We describe how to implement known declarative database technology for integrity checking in SQL databases. We show how to represent and evaluate arbitrari...

Hekaton is a new database engine optimized for memory resident data and OLTP workloads that is fully integrated into Microsoft SQL Server. A key innovation that enables high performance in Hekaton is compilation of SQL stored procedures into machine code.

PURPLE was the designation given by U.S. cryptanalysts to the cipher machine used by the Japanese Foreign Office for secure communications before and during WW 2. We present the structure and internal wiring of the machine, as well as details of the keying procedures and a system of abbreviations, which was used in the messages. We have also written a computer simulation of the PURPLE machine. ...

The sequential “stored program”model used for most computers is seriously limiting performance in several ways. This has lead to a search for more efficient ways of doing computations. One of the most important improvements is to start doing computations in parallel. This paper looks at the parallel property of reconfigurable computing and compares it with the traditional approach of extending ...

A method of constructing process categories as generalized relations on a category of process models is presented. The construction may be viewed as a 2-functor, allowing structural properties of the process categories to be derived from the underlying structure of the model categories. In particular, this allows one to infer the presence of linear structure in a process category. The construct...

This paper contains a brief discussion of the Application Development Environment (ADE) that is used to build database applications involving the graphical user interface (GUI). ADE computing separates the database access and the user interface. The variety of applications may be generated that communicate with different and distinct desktop databases. The advanced techniques allows to involve ...

This chapter reviews briefly the direct and indirect means of estimating the completeness with which deaths are recorded in a civil registration system. In accordance with the instructions of the organizers of the Meeting, it was designed as an adjunct to the paper presented by Moriyama,' on continuous registration systems. It should be noted that the methods can be used with little modificatio...

The investigation of Plasmopara viticola, that spends most of its life cycle inside of leaves, requires specific staining techniques. It is desirable to visualize both, host cells and parasitic structures, given their silimar chemical constitutions, especially in reference to the cell wall. On the basis of appropriate staining procedures it was possible to demonstrate parasitic structures durin...

For systems aaected by time-varying parametric uncertainties, we devise in this chapter a technique that allows to equivalently translate robust performance analysis speciications characterized through a single Lyapunov function into the corresponding analysis test with multipliers. Out of the multitude of possible applications of this so-called full block S-procedure, we will concentrate on a ...

MDBAS is a prototype of a multidatabase management system based on mobile agents. The system integrates a set of autonomous databases distributed over a network, enables users to create a global database scheme, and manages transparent distributed execution of user requests and procedures including distributed transactions. This paper highlights the issues related to mobile database procedures,...