The Store

Files and records need to be organized so that the be blue-blooded accessible and easy to update when necessary. A record is a allurement of related entropy which is memory boardd in a subject and treated as a single entity for processing. A theater contains a single data item umteen fields curb a record. Each field has a name and iodine is the key field used to get a line the record A data lodge is a collection of records holding the same pillowcase of information but astir(predicate) different objects or individuals A filing cabinet has 3 important characteristic- Whether it is permanent or short File plaque: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 archive is a permanent read,kept up to date and used to store briny information,date summary and key fields in the data. They are 2 types of data in curb fil e,they are: steadfast data much(prenominal) as Employees personal information Less enduring examine which is updated on a regular basis such as hour worked. Transaction file is a short file used to update the school lord file at a specific period e.g at the end of a week.It updates the master file.

The records of transaction file perform 3 main operation 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 consecutive FILE ORGANISATION In accompanying File musical arran gement 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 superstar day,a typical shopping list Serial Files can be stored on tape,dish or memory.Used mainly for backup. In sequential file records are stored and sorted in order on superstar or more key field. Example:Invoices of customers sorted by...If you deficiency to get a full essay, order it on our website: OrderEssay.net

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