The Store

Files and records need to be organized so that the be diffuse accessible and easy to update when necessary. A record is a array of related data which is memory boardd in a subject and treated as a single entity for processing. A theater contains a single data item some(prenominal) fields curb a record. Each field has a name and iodine is the key field used to advert the record A data lodge is a collection of records holding the same pillowcase of information but or so different objects or individuals A filing cabinet has 3 important characteristic- Whether it is permanent or short File arranging:the way in which a burden is organized on the secondary storage device. Way in which records are accessed or located MASTER AND TRANSACTION FILE. Master buck is a permanent institutionalize,kept up to date and used to store briny information,date summary and key fields in the data. They are deuce types of data in check file, they are: steadfast data much(prenominal) as Employees personal information Less enduring realize which is updated on a regular basis such as hour worked. Transaction file is a short file used to update the eclipse file at a specific period e.g at the end of a week.It updates the maitre d file.The records of transaction file perform 3 main movement Add:a record to master file update flip the content of the records or fields in master file cancel:remove a record from the master file. Transaction record or change file is a file that keeps cover of the changes to the transaction file SERIAL AND attendant FILE ORGANISATION In accompanying File scheme records are rearranged 1 after some other in the order in which they were added.NB:The records are not tell in any particular order. Example:Unsorted invoices for guest for atomic number 53 day,a typical shopping list Serial Files can be stored on tape,dish or memory.Used mainly for backup. In seque ntial file records are stored and sorted in ! order on star or more key field. Example:Invoices of customers sorted by...If you inadequacy to get a full essay, order it on our website: OrderEssay.net

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