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how to find entities
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
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
Explain the ANSI SPARC architecture The three-schema architecture is as well known as ANSI SPARC architecture. The aim of the three-schema architecture is to separate the user
To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
The database depicted in the Visio diagram describes Proceeding , Article , Researcher , article PublishedIn a proceeding, article WrittenBy researchers and proceedings Edi
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
coventions for displaying an ER schema as ER diagram
Database Management Systems 1. Explain SQL Server 2000 Architecture with diagram. 2. Describe Second Normal and Third Normal Form. 3. Explain about query engine and stora
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