What is file organization and access?
File organisation and access relates to the use of records, fields and files stored in a database. This is similar to sequential file ordering, except the records are not stored in any particular order (unordered).
What is file organization describe different types of file organization?
File Organization refers to the logical relationships among various records that constitute the file, particularly with respect to the means of identification and access to any specific record. In simple terms, Storing the files in certain order is called file Organization.
What are file organization explain?
File organization refers to the way data is stored in a file. File organization is very important because it determines the methods of access, efficiency, flexibility and storage devices to use. There are four methods of organizing files on a storage media.
What is hashing file organization Mcq?
Explanation: Hashing file organization means that a hash function is computed on some attribute and that decides the block. The result of the hash function specifies which block of the file the record should be placed in.
What are the advantages of serial file organization?
Advantages of Serial File Organization: The main advantage of a serial FO is that the space on the storage medium can be utilized to the maximum possible extent….
- File design is simple.
- Location of records requires only the record key.
- Low-cost file media such as magnetic tapes can be used for storing data.
What are the advantages and disadvantages of direct access file organization?
Advantages of direct access file organization Direct access file helps in online transaction processing system (OLTP) like online railway reservation system. In direct access file, sorting of the records are not required. It accesses the desired records immediately. It updates several files quickly.
What are the three file organization methods?
As mentioned previously, the three most common methods of file organization include sequential, indexed and relative organization. Sequential organization describes a method in which specific data records are organized in the exact order in which they have been added to the computer.
What are types of files?
6 Different Types of Files and How to Use Them
- JPEG (Joint Photographic Experts Group)
- PNG (Portable Network Graphics)
- GIF (Graphics Interchange Format)
- PDF (Portable Document Format)
- SVG (Scalable Vector Graphics)
- MP4 (Moving Picture Experts Group)
What is the heap file Organisation?
It is the simplest and most basic type of organization. It works with data blocks. In heap file organization, the records are inserted at the file’s end. When the records are inserted, it doesn’t require the sorting and ordering of records.
Which of the following is also called as hash file organization?
Hash/Direct File Organization The hash function is applied on some columns/attributes – either key or non-key columns to get the block address. Hence each record is stored randomly irrespective of the order they come. Hence this method is also known as Direct or Random file organization.
What are some advantages and disadvantages of sequential file organization?
Advantages and Disadvantages
- The sequential file organization is efficient and process faster for the large volume of data.
- It is a simple file organization compared to other available file organization methods.
- This method can be implemented using cheaper storage devices such as magnetic tapes.
What are the advantage of direct access?
Advantages
| Fastest direct access organization | This is the fastest direct access organization. To reach a particular record, only a few simple calculations have to be done. |
|---|---|
| Very little storage overhead | Unlike Indexed files, which must store the indexes as well as the data, Relative files have only a small storage overhead. |