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Sequential files do not 'work', they are nothing but sequences of bytes.

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16y ago

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What is index sequential and relative files?

Index sequential files store records in sequential order and use an index to quickly locate specific records. Relative files store records based on their physical position in the file, allowing for direct access to records using their relative position within the file.


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The file(s) (data) which are accessed in a sequential or a orderly manner is called as a sequentially accessing a file.


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To access a particular data item in a sequential file, you need to read in all items in the file prior to the item of interest. This works acceptably well for small data files of unstructured data, but for large, structured files, this process is time-consuming and wasteful. Sometimes, we need to access data in non-sequential ways. Files which allow non-sequential access are random access files.


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What are the advantages of indexed-sequential file organisation?

Indexed-sequential file organization allows for efficient storage and retrieval of records by combining the benefits of sequential access (fast for batch processing) and direct access (quick for individual record retrieval). It provides faster access to records compared to purely sequential files while maintaining sequential organization for improved batch processing performance. The index allows for quick access to specific records without needing to search through the entire file.


How to add sequential numbering to pdf files?

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What are the techniques for updating records in sequential files?

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What refers to the sequential storage of HTML documents and files making up the web page and placed in the hierarchy of directories and folders on the web server?

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What has the author F J S Edwards written?

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