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Define page.
The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Views in relational algebra: 1. Basic expression contains either a) A relation in the database. b) A constant relation. 2. General expressions are madde out of sma
Define physical and logical data independence. How does this architecture help in achieving these? Data independence entails that change in one view must not need a change in t
4. Describe three ways to handle missing field values
Q. Explain data aggregatio n and discuss different design constraints. Sol. Aggregation One limitation of the E-R model is that it cannot express relationships amon
Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,
Explain the main advantages of DBMS over File Oriented System ?
What are the advantages of creating a table from existing table?
#question.ERD of any car
What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s
Describe Graphical User Interface? Graphical User Interfaces (GUIs) - A GUI typically displays a schema to the user in diagrammatic form. The user can then specify a query th
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