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Which type of database model connects data in different files through the use of a key field?
The relational database model connects data through the use of a key field, which is called a primary key in one table and a foreign key in another table. This key field establishes a relationship between different tables by uniquely identifying records.
Difference between database and database instance?
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.
What is a record in the database?
In the structure of a database, the part consisting of several uniquely named components called data fields. Several data records make up a data file, and several data files make up a database.
What is called a collection of interrelated files?
A collection of interrelated files is called a database. It is organized in a way that allows for easy access, retrieval, and manipulation of data. Databases are commonly used in applications to store and manage information efficiently.
Which two files used during the operation of Rdbms?
During the operation of a relational database management system (RDBMS), two key files used are the data file or database file, which stores the actual data in tables, and the transaction log file, which records all changes made to the database to ensure data integrity and provide recovery in case of failures.
A database contains files a file contains?
records, a record contains fields, and a field is made up of characters
What is the difference between database file and datafile?
Datafile is a group of files in each table space in an Oracle database. Database files are all files that are found within the database.
What is a mixed database?
A mixed database is a system that contains different records that are set up in different files. This means that the database system will run several workloads simultaneously.
What is a Un-normalize database?
An un-normalized database contains a random population of data that has not been organized into small stable data files
Correct difference between file and database?
A file is a record. A record is comprised of a bunch of fields. Files are the subject of some thing. For example, if you are on a mailing list, it has your name, address. A database contains files - think of a file cabinet.
What are the different types of physical files in the Oracle 9i?
* Database datafiles - contain the data itself * Control files - binary files containing information about the database (name, files, backup...) * Online redo logs - files, which record every transaction in the database * Parameter files - database parameter file * Other database related files - password files, alert log, trace files...
What is called as Collection of files in database?
database
Is database files and internet files the same?
No
What order are files stored in the database?
simply files are stored in database in upper to lower order.
What is role of database in organization?
database is a collection of different files
Are Highly structured and organized data is stored in database files?
are structured and organized data stored in database files
When it is more appropriate to use a file system rather than a database?
One answer is when you are dealing with image files like JPGs or PDFs. One mistake I see people making is storing image files within a database. That's a poor design. They bloat the database and can't be indexed. You should store the images in a file system and simply put ponters in the database.
