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Q. Describe how an ER schema can be represented by relation schemas and constraints arising from ER design can be mapped to constraints on a relation schema. The entity rela
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This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
Security And Integrity After Reading the concepts of database recovery in the last section, let us now deal with a vital concept that helps in minimizing consistency errors in
Explain Hierarchical Model ? Hierarchical Model - It was established to model several kinds of hierarchical organizations which exist in the real world. It uses tree structur
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
We want have a website; we need to test the security of our website. You need to: -Try to bypass our security by simulate a website hacking -Try some hack Techniques like
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
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