About Sequential File Access

Data files created with sequential file access have records stored in a file, one after another, in sequential order. When you access data files with sequential file access, records must be read in the same order in which they were written to the file. In other words, if you wish to access the 20th record in a data file, you must first read records 1 to 19.

Sequential file access is useful and appropriate for small data files. If you find that your sequential file access program is starting to run slowly, you may wish to change file access to an RDBMS such as Microsoft Access.

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