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Which data manipulation command combines the records from one or more tables ?
JOIN data manipulation command combines the records from one or more tables.
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system
Part 1: Security Plan Consider the Case study and identify 3 security requirements. For each of these security requirements: • Discuss the necessity for the feature and how
random file sharing
The JOIN operation is applied on two relations. When we want to choose related tuples from two given relation join is used. The join operation need that both the joined relations m
We define a view in SQL through using the create view command. To describe a view, we must provide the view a name and must state the query in which computers the view. The form of
Describe about Object oriented design Object oriented design is concerned with developing an object oriented model of a software system to implement known requirements. Many OO
what is Mapping Constraints? with examples
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