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What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Draw entity relationship diagram for the following scenario. A university has many departments whereas each department belongs to that particular uni. That uni has also many bui
random file orgnization
Example: //REVOKE ALL ON EMP FROM MCA12; (All permissions will be cancelled) You can also cancel only some of the permissions. Drop: A user-
Why do you go for sorting your query results? SQL SELECT command to fetch data from MySQL table. Whenever you select rows, the MySQL server is free to return them in any order
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
Define and differentiate between ordered indexing and hashing. Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
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