What are different types of anomalies in database? June 16, 2022 How can such anomalies be eliminated? The most common anomalies considered when data redundancy exists are: update anomalies, addition anomalies, and deletion anomalies. All… Continue Reading
What are insertion anomalies? June 16, 2022 deletion anomaly: occurs when you delete a record that may contain attributes that shouldn't be deleted. functional dependency (FD): describes how individual attributes are… Continue Reading
How normalization minimizes redundancy show with example? June 16, 2022 There are two main objectives of the normalization process: eliminate redundant data (storing the same data in more than one table) and ensure data… Continue Reading
Why is redundancy bad? June 15, 2022 Problems caused due to redundancy are: Insertion anomaly, Deletion anomaly, and Updation anomaly. If a student detail has to be inserted whose course is… Continue Reading
What is DBMS how it is different from traditional file system? June 15, 2022 Traditional file processing systems include manual systems and also computer based file systems that were linked to particular application programs. This is the type… Continue Reading
What are the three data management problems caused by data redundancy? June 15, 2022 Data Redundancy Disadvantages Allows for data corruption caused by damage or errors sustained during the process of storage and transfer of data across multiple… Continue Reading
Why is data redundancy important? June 15, 2022 Data redundancy offers an extra layer of protection and reinforces the backup by replicating data to an additional system. It's often an advantage when… Continue Reading
How do I stop anomalies updating? June 15, 2022 An update anomaly is a data inconsistency that results from data redundancy and a partial update. For example, each employee in a company has… Continue Reading
What are the three data anomalies that are likely to occur as a result of data redundancy Why are they considered bad? June 15, 2022 These problems arise from relations that are generated directly from user views are called anomalies. There are three types of anomalies: update, deletion, and… Continue Reading
How can we prevent data redundancy in database? June 14, 2022 Whereas DBMS controls redundancy by maintaining a single repository of data that is defined once and is accessed by many users. As there is… Continue Reading