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Computer-Network.com | Computer Network
Wikipedia defines a computer network as a group of interconnected computers. Networks can be classified according to connection method (the hardware technology used to connect the individual devices in the network—i.e., optical fiber, Ethernet, etc.), functional relationship (functional relationships existing between network architectures—e.g., peer-to-peer, client-server and active networking), and network topology (bus network, ring network, mesh network, etc.).
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Sql Update Statement
Are you a computer professional? If so the word data base will be very familiar to you. You might have worked with many databases being a computer professional. Still the term database might pose lot of confusions for a layman as they are totally not aware about the concept. Database can be considered as a store house. This is actually developed in order to store lot of data using a computer code. You can create a database of any size for storing any number of variables. There are many soft wares programmed specially for the database utility and among them the most popular one is the structured query language or SQL. This can be considered as the portable language used by the database. This software is compatible with any operating system in any platform and also it has the capacity to store any number of records. You might be wondering with the term record and it is nothing but small collection of data that contain variable and constant values. The arrangement of record in database is in the form of rows and columns. There are many commands in SQL and using these commands the records are manipulated as per the requirement of the project. If you think about any computer related program or project you cannot point out even a single case where you need not have to make use of the database. Right from the simplest section where you need to login to some pages you need to maintain a database that stores the login name along with their corresponding passwords in order to help you to successfully login to the respective page. There are separate commands for adding new data in to the database, removing particular data from the database, and even for updating a particular data value stored in the database. It is natural that these three operations are considered as the most basic operations that are commonly used in any database where update command has got a special importance. Most of the cases we try our level best to avoid the deletion of any particular data and we encourage addition of new data. Updating the field is very important as the database values are easily prone to different changes as per the functioning of the related program. You should clearly learn the SQL commands in order to maintain the database without any trouble. This has to be done correctly by studying the commands correctly even though the commands are lengthy. sql update statement is the only command that is easy to learn as it is very short and does not involve many fields. You just need to mention the field that needs to be update while calling the sql update statement.
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