Object-oriented databases use small, reusable chunks of software called objects. The objects themselves are stored in the object-oriented database. Each object consists of two elements: 1) a piece of data (e.g., sound, video, text, or graphics), and 2) the instructions, or software programs called methods, for what to do with the data. Part two of this definition requires a little more explanation. The instructions contained within the object are used to do something with the data in the object. For example, test scores would be within the object as would the instructions for calculating average test score.
Object-oriented databases have two disadvantages. First, they are more costly to develop. Second, most organizations are reluctant to abandon or convert from those databases that they have already invested money in developing and implementing. However, the benefits to object-oriented databases are compelling. The ability to mix and match reusable objects provides incredible multimedia capability. Healthcare organizations, for example, can store, track, and recall CAT scans, X-rays, electrocardiograms and many other forms of crucial data.
solved examples of normalization
Three types of DBMS (Database Management Systems) include relational DBMS, object-oriented DBMS, and NoSQL DBMS. Relational DBMS organizes data into tables with rows and columns, object-oriented DBMS stores data as objects and classes, and NoSQL DBMS handles unstructured and semi-structured data with flexible schemas.
My sql, Microsoft sql , Microsoft Access, dBase, Filemaker pro are the examples for dbms and oracle and sql server are the examples for rdbms
There are four types of DBMS users,Naive UsersOnline UsersApplication Program UsersDatabase AdministratorNote: The description of above points is currently not available.
1. Following are the different types of dbmsMySQLMicrosoft SQL ServerMS AccessFoxproSAPdBASETibero 6
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Types of Attributes in Dbms areKey or non key attributesRequired or optional AttributesSimple or composite AttributesSingle-valued and multi-valued AttributesStored, Coded or derived Attributes
Armstrong rules are complete or sound in dbms by clarifying the types of situations which need to be achieved and done.
DataBase Management System (DBMS)is a software package# it allows data to be effectively stored, retrieved and manipulatedand # the data stored in a DBMS packege can be accessed by multiple users and by multiple application programs like (SQL Server, Oracle, Ms-Access) .Types of DBMS# Hierarachical DBMS (HDBMS)# Network DBMS (NDBMS)# Relational DBMS (RDBMS)# Object Oriented DataBase(OODB)# Distributed DBMS (DDBMS)
Some examples are SQLServer , MySQL, Orcle
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Microsoft Access, MySQL, Microsoft SQL Server, Oracle, FileMaker Pro, FoxPro, dBASE are all examples of database management systems. A DBMS, or database Management System, is a collection of programs that enables you to store, modify, and extract information from a database.