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These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permits casual users the ability to access the database without having to learn the query language, and it permits advanced users to promptly manage and manipulate the database without the trouble of entering formal commands using the query language. Therefore, graphical interfaces usually do not give the same level of functionality as a command line interface as it is not always possible to execute all commands or options using a graphical interface.
Deletion Anomalies: Loss of important Information: In some cases, useful information may be lost when a tuple is deleted. For instance, if we delete the tuple corresponding to stu
Inheritance Adjustment As in object oriented analysis and design terms inheritance defines a relationship between classes, where as one class shares structure or behaviour def
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
Evaluate, compare and contrast the two methods of relational database design namely top down method and Bottom up method. What will be your choice if you are asked to select a meth
Define Deadlock prevention These protocols make sure that the system will never enter a deadlock state. There are two methods to deadlock prevention. One approach makes sure t
Modify a sequence: ALTER SEQUENCE SEQSS INCREMENT 2 MAXVALUE 3000; Removing a sequence: DROP SEQUENCE SEQSS;
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What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
I am using Siteground. And my database is full of limit so need someone who reduces the data which no need. This is very simple and simple task. Skills required are Databa
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
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