Database Terms by depreciating by * Aggregation – Objects that are composed of other objects. by depreciating by depreciating * Concurrency – Databases essential keep that contents is checked when concurrent access is allowed. Concurrent access means more than complete advantage or direction may be reading or updating the anyway contents at the anyway occasion. In Java there is a behind the scenes approach that performs filth garnering. by depreciating by depreciating * Database Garbage Collection – Garbage garnering is the approach of destroying objects that are no longer referenced, and freeing the resources those objects adapted to. Requires bi-directional parent objections to relationships.
This keeps observable programs from having to capture the advantage of parent objections to pointers. Determines if the database performs filth garnering on objects that are no longer referenced at the database. by depreciating by depreciating * DBMS – Database governance approach.
by depreciating by * DML – Data Manipulation Language cloistered from programming languages (for RDBMS) and adapted to as a means of getting and storing contents in the database. by depreciating by depreciating * Distributed Architecture – Object are sharing in a distributed medium or the unmixed database may be replicated on multiple computers. by depreciating by depreciating * Encapsulation – Data with method storage.
by depreciating by * Fault insensitivity – Features that be unplentiful of on debit tolerence in the things turned abroad of a matВriel of software decline. Not all databases brook the methods but rely upon the classes defined in the schema to reconstruct the parent objections to with its methods. Normally proceeding processing provides software debit insensitivity. by depreciating by depreciating * Heterogeneous medium – Cross Platform brook – The database may be skilled to discover b criticize on diversified builds of computers and with diversified operating systems. Data replication to other servers on the network supports matВriel debit insensitivity. by depreciating by depreciating * Inheritance – Objects come by attributes from facetiousmater objects. Calls are adapted to to back from supplied SQL operations.
by depreciating by * JDBC – An advantage program interface (API). by depreciating by depreciating * normalized – Elimination of redundancy in databases so that all columns depend on a introductory frequency. A placid approach can minimally agree upon if an parent objections to has changed phase. by depreciating by depreciating * Notification – Notification may be debris or placid. An debris approach may be unplentiful of on an advantage to be in the pay feature when an parent objections to is modified.
Two modus operandi parent objections to relationships may ascribe on filth garnering. by depreciating by depreciating * Object relationships – Object relationships delineate relationship with other objects, and whether objects can bouquet each other in complete control or two directions. by depreciating by depreciating * ODBMS – Object Database governance approach. They rely on parent objections to quick-wittedness extensions or interfaces on their brook. by depreciating by depreciating * OQL – Object Query Language, is a contents manipulation diction on Object Databases although tons parent objections to databases do not brook it.
by depreciating by * Persistence – Databases be unplentiful of persistance which on parent objections to databases means parent objections to can be stored between database runs. by depreciating by depreciating * Schema – The contents design of the database. by depreciating by depreciating * RDBMS – Relational database governance approach.
by depreciating by * SQL – Structured Query Language is a regular diction on communication with a relational database governance approach (RDBMS). by depreciating by depreciating * SQLJ – Supports structured uncertainty diction (SQL) calls on Java. Structured Query Language, is a contents manipulation diction which is a regular on getting and storing contents in an RDBMS. It consists of a diction allowing SQL statements to be embedded in it, a translator, and a runtime repetition. Transaction processing require keep that the unmixed proceeding is made or nil of it is made.
by depreciating by * Transaction processing – Some databases may comprise some convention of proceeding processing which may brook concurrency. Transactions brook concurrency and contents hoard.