Embedded is a resource-constrained application, which adds a lot of complex communication factors to the mobile. Embedded mobile databases involve many key technologies, such as backup recovery (unlike traditional databases), Replication and synchronization (by uploading, downloading, or blending, combined with complex synchronization controls to achieve data synchronization of servers and front-end devices), transactions, and security (because the device has high mobility, Portability plus a fixed working environment, there are a lot of unsafe factors, and so on.
In this area, Syabse company occupies an absolute advantage, occupy more than 70% of the market share, but mobile applications of most mature users are abroad, because mobile database applications must rely on advanced mobile infrastructure. Admittedly, in the traditional relational database field Syabse has lagged behind, but in the mobile technology invested a lot, through a series of acquisitions and integration, in more than 10 years to obtain valuable technical experience and market experience.
Comments:
Sybase Company in 1993-1994 years, acquired the database application development tool manufacturer PowerSoft Company-PowerBuilder series of products known, Sybase Mobile Database predecessor is a small database in PowerBuilder. In the 1995---1996, Sybase innovated and developed on the basis of the PowerSoft product database and developed into a professional mobile database.
In addition, Sybase subsequently acquired 71.3 million U.S. dollars, founded in 1984 to provide mobile enterprise software (Mobileenterprisesoftware), Mobile device Solutions (mobiledevicesolutions) and database software Extendedsystems, a well-known supplier of on-site mobile device software management in the United States, XcelleNet, Ianywheresolution successfully released the Rfidanywhere application software on the basis of xcellenet, and the world's largest mobile and wireless application provider AvantGo, also completed a successful acquisition.
Sybase established its Ianywheresolution subsidiary in 2000 to specialize in mobile technology. If we analyze Sybase's success on mobile databases, part of the reason is that Sybase's mobile database technology has been developed and designed almost from "0", while others may have shrunk a large database into a mobile database, There is no good technical and marketing planning for mobile databases. Sybase's ianywhere contains a remarkable and noteworthy Mobilink server synchronization technology.
Comments:
SQL anywhere contains one named Mobilink synchronization technology. Mobilink is a server-based synchronization engine that communicates with remote clients through a serial port, TCP/IP, HTTP, HotSync, Scoutsync, or ActiveSync connection. Universal synchronization techniques such as mobilink can greatly reduce development costs because MobiLink can handle advanced synchronization operations such as snapshot and timestamp synchronization, primary key maintenance, conflict detection, and resolution. On the server side, all Mobilink synchronization logic is handled by using SQL events from the background database (Mobilink connects the database through ODBC, so it actually supports all SQL databases) by using Certicom's Ssl/tls Plus To support public key cryptography (using elliptic curve encryption system technology).
Other manufacturers of mobile database products, this year in the market reflects a little flat, these and manufacturers of the market strategy, not to say technically backward. Oracle's Oracle 8i LITE,IBM DB2 everywhere, Microsoft's SQL Server CE, and other mobile database systems that can be used on a variety of platforms are also powerful. Traditional database applications have changed our work, while embedded and mobile databases will change our lives.