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Explain Alternate key?
Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
What is an ERD?
The aims of the project are: 1. To enable the students to undertake the detailed design of a specific plant or process 2. The design projects includes: process selection; und
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
Databases and data warehouses both are databases and both contains number of rows and columns of tables containing data. Data warehouse is really different from databases because d
What is hashing file organization? In the hashing file organization, a hash function is computed on some attribute of every record. The result of the hash function specify in
Need 2 projects completed in 3NF format.
Describe logical data independence ? Logical Data Independence - It is the capacity to modify the conceptual schema without having to change external schemas or application p
Record based Logical Models: Use records as the key data representation components Examples: Relational Model: It shows data as well as relationship between data in the form
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abs
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