Physical file organization refers to the way data is stored on a physical medium, such as a hard drive or SSD. It involves the arrangement of records in a specific format, such as sequential, heap, or indexed, to optimize data retrieval and storage efficiency. This organization impacts how quickly and effectively data can be accessed, updated, and managed within a database or file system. Proper physical file organization is crucial for performance, especially in systems with large volumes of data.
file organization
Heap file organization Sequential File Organization Hashing File organization
to have a data file with multiple access path is known as multi key file organization
Serial file organization stores records in a linear format, while sequential file organization stores records in a specific order defined by a key field. In serial file organization, records don't have to be retrieved in a specific order, whereas in sequential file organization, records are retrieved based on the key field's order.
three similarities is that physical file deals with does file that a
There is great importance in file organization. This type of organization can be easily looked through and files are easy to retrieve.
file organization is of 3 types sequential,direct and indexed sequential where how data is accessed in eash file is decided where as file maintainence is
is the file of the file that will be used to a file
random file organization is a organization were you search a certain object ofr file by the use of any key and in search by randomly
hash file organisation is containing the record of the file.
* Physical file (PF) contains the data and have only one record format. Logical file (LF) is a view of the physical file which does not contain any data may be based on one physical file or more then one physical file. Logical file can have more then one record format. Logical can be non join or join logical file. Performance becomes better if you use the logical file in the program.
Indexed sequential file organization. =In indexed sequential file organization, the records arestored in sequence according to a primary key and an index is created to allow random access of the file. This type of organization also allows the file to be accessed sequentially. Indexed sequential is the most commonlyused type of file organization. writer-k.k.b -montanna