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Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
external view of DBMS in healthcare department?
What does Aggregation mean?
Define the basic operations of the relational algebra? Ans: Basic operators of relational algebra are: 1. Union (∪) - Selects tuples which are in either P or Q or in bot
how to implement mid square hashing?
Draw an E_R Model for the following: An organization uses number of items of a equipment to generates goods. Each item is at one LOCATION, of one TYPE and has a DETAILED_DISCRI
Scenario 1: Power goes out after the first instruction. What happens?
Name the three major set of files on disk that compose a database in Oracle. There are three main sets of files on disk that compose a database. All the files are binary. These
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
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