The system database that contains descriptions of the data in the database is called the data dictionary or metadata repository. It stores information about the structure, definition, and organization of data elements within the database to help users and systems work with the data effectively.
The object that contains all of the database data is typically a database management system (DBMS) such as MySQL, PostgreSQL, or Oracle. This system stores, organizes, and manages the data in a structured format, allowing users to query and manipulate the information stored within it.
In simple terms, you can look at the database as being the files or tables with the data. A database system includes the other elements like queries, reports, forms, programs and other elements that manipulate and support the data in the database.
Database is a widely used approach used today . It is used in every field today like banks, schools, hospitals, railways etc. A database basically contains data that is related to each other and make sense.
In general, a database is a collection of related data. In more specific terms, a database is typically a collection of computer files, usually stored on disk, used to contain and manage this data. The logical structure of a database (as organized in tables, indexes, views, etc.) does not necessarily correspond directly to its physical structure (the data files, transaction log files, etc.). A database instance is the instantiation of memory structures and processes by a database management system manages the logical and physical structures and the data organized and stored therein. An application program must connect to and interact with the database instance in order to insert, retrieve, modify, and/or delete data stored in the database.
A database system is a term that is typically used to encapsulate the constructs of a data model, database Management system (DBMS) and database .. (natsume)
The object that contains all of the database data is typically a database management system (DBMS) such as MySQL, PostgreSQL, or Oracle. This system stores, organizes, and manages the data in a structured format, allowing users to query and manipulate the information stored within it.
data dictionary- Used to store schema descriptions and other information such as design decisions, application program descriptions, user information, usage standards, etc. Active data dictionary is accessed by DBMS software and users/DBA. Passive data dictionary is accessed by users/DBA only.
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A database is simply a collection of pieces of information (data). A text file storing names and phone numbers is a database. A database management system (DBMS) is some software that manages the data within the database such as MySQL. Both the software and the database are considered together when thinking of a DBMS.
A database is a collection of data. A database management system controls how those data are collected, stored and retrieved.
A database system is a term that is typically used to encapsulate the constructs of a data model, database Management system (DBMS) and database .. (natsume)
In simple terms, you can look at the database as being the files or tables with the data. A database system includes the other elements like queries, reports, forms, programs and other elements that manipulate and support the data in the database.
We have database to store data in to it. We prefer to have database over FPS because they handle the data efficiently.
A database system is a term that is typically used to encapsulate the constructs of a data model, database Management system (DBMS) and database .. (natsume)
Database system can be defined as the collection of interrelated data. Uses of database system are that it maintains data security , data integrity, data can be easily accessed and shared too.
characteristic of relational data base system There are a number of characteristics that distinguish the database approach with the file-based approach. In this section, we describe in detail some of those important characteristics. Self-Describing Nature of a Database System : Database System contains not only the database itself but also the descriptions of data structure and constraints (meta-data). These information is used by the DBMS software or database users if needed. This separation makes database system totally different from traditional file-based sytem in which data definition is a part of application programs Insulation between Program and Data : In the filed base sytem, the structure of the data files is defined in the application programs so if user want to change the structure of a file, all the programs access to that files might need to be changed. On the other hand, in database approach, data structure is stored in the system catalog not in the programs so such changes might not occurs. Support multiple views of data: A view is a subset of the database which is defined and dedicated for particular users of the system. Multiple users in the system might have different views of the system. Each view might contains only the interested data of an user or a group of user. Sharing of data and Multiuser system: A multiuser database system must allow multiple users access the database at the same time. As the result, the multiuser DBMS must have concurrency control strategies to ensure that several user try to access the same data item at a time do so in the manner so that the data always be correct.
In database system the data is stored in the form of table. So to store the data in the database, table are very important in a database system.