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Support by Adding Indexes
Multiple indexes can be used to access a data file by multiple access paths. In such a scheme only single copy of the data is consider, only the number of paths is added with the use of indexes. Let us talk about two main approaches in this category: Multi-List file organisation and Inverted file organisation.
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
Events4Fun is an event management company in Europe with branches in South America as well. The company is well-known for its efficiency, good-quality services, and affordable char
What is a cascading update? Referential integrity constraints needs that foreign key values in one table correspond to primary key values in another. If the value of the primar
Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
Explain CNT in the respects of QBE ? CNT: It is one of the aggregation commands given in QBE. It is used to identify number of tuples
Give an example of Object Representation For illustration, consider the implementation of a social security number within an employee object that is shown in Figure. The soci
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
Explain in details about Data Sharing
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