Web-Linked Database Architecture

• Client Web Server Database Server

Traditional approach: C or Perl CGI

Program invoking RDBMS

JDBC (Java Data Base Connection) Has 2 tier (no Web server)

or 3 tier Architecture

JDBC is set of standard Java Methods to access any database

“drivers” map generic methods to particular database

Java code can be at Client (2 tier) Server(3 tier)

or even on the database (Oracle’s Java replacement for PL/SQL)

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