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records, a record contains fields, and a field is made up of characters

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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 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.


How is a Access database file stored?

An Access database file is typically stored similarly to other computer generated files found on the hard drive of a computer. Access database files will have a .mdb or .accmdb file name extension.


How do you store pdf file to database using PHP?

Files cannot be directly stored in a MySQL database. However, a path to the file or the contents of the file can.


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...


How many control files are required to create a database?

You do not need any control files to create a database; the control files are created when you create a database, based on the filenames specified in the CONTROL_FILES parameter of the parameter file.


What contains data about each file in the database and each field within those files?

The data dictionary contains information about each file in the database, including the structure, properties, and location of each file. It also includes information about each field within those files, such as the data type, size, and constraints associated with each field. The data dictionary acts as a centralized repository of metadata that helps in managing and understanding the database schema and data.


What is the full meaning if MDF files in SQL?

MDF = Master Database File


Give three examples of software that may be password protected?

1) The SAM database file that contains the encrypted passwords of the users on a Windows system. 2) Files that do not belong to you on a computer. 3) Files that are critical for the computer to function properly.


Is header file the library file?

No. Header files are those which contains declaration part of function & library files are those which contains definition part of function. These are those functions which we called in our program by using header files.


Compare Database Systems and File Systems?

File system has data stored in flat files, which stores only processed data. Database system has data stored in table and they may or may not be related to each other. Database system is more efficient and also reduce redundant information which file system can not do.


Discuss database system versus file system?

A database is a collection of interrelated data's stored in a database server; these data's will be stored in the form of tables. The primary aim of database is to provide a way to store and retrieve database information in fast and efficient manner. There are number of characteristics that differs from traditional file management system. In file system approach, each user defines and implements the needed files for a specific application to run. For example in sales department of an enterprise, One user will be maintaining the details of how many sales personnel are there in the sales department and their grades, these details will be stored and maintained in a separate file. Another user will be maintaining the salesperson salary details working in the concern, the detailed salary report will be stored and maintained in a separate file. Although both of the users are interested in the data's of the salespersons they will be having their details in a separate files and they need different programs to manipulate their files. This will lead to wastage of space and redundancy or replication of data's, which may lead to confusion, sharing of data among various users is not possible, data inconsistency may occur. These files will not be having any inter-relationship among the data's stored in these files. Therefore in traditional file processing every user will be defining their own constraints and implement the files needed for the applications. In database approach, a single repository of data is maintained that is defined once and then accessed by many users. The fundamental characteristic of database approach is that the database system not only contains data's but it contains complete definition or description of the database structure and constraints. These definitions are stored in a system catalog, which contains the information about the structure and definitions of the database. The information stored in the catalog is called the metadata, it describes the primary database. Hence this approach will work on any type of database for example, insurance database, Airlines, banking database, Finance details, and Enterprise information database. But in traditional file processing system the application is developed for a specific purpose and they will access specific database only.