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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
A step-wise distributed database design methodology Following is a step-wise methodology for distributed database design. (1) Examine the nature of distribution. Find out wh
Object-oriented decompositions Object-oriented decompositions of systems better are able to cope with change. Each subsystem has a well-defined interface which communicates with
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
The File Based System File based systems are an early attempt to computerise the manual filing system. For example, a manual file can be set up to hold all the correspondence r
explain the level architectures of the database management system
We will explain here an example database application having COLLEGE database and use it in showing several E-R modelling concepts. College database remains track of faculty, Stu
What Is Sql? Structured Query Language (SQL) is a standard query language. It is usually used with all relational databases for data manipulation and definition. All the re
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
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