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Problem
Explain at least five relational algebraic operators with a suitable example.
Note: All the above descriptions should be done by taking at least two examples from outside (Other than the text book examples)
What Command You Use What Day of the week were you born
What is an object ID? Each class-derived table has an ID for primary key, one or more object IDs form primary key for association derived tables. An object ID is equivalent dat
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
Drawbacks of Data Distribution: The primary drawbacks of distributed database systems are the added complexity needed to ensure proper coordination between the sites. This increas
Differentiate between horizontal & mixed horizontal fragmentation?
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
4. Describe three ways to handle missing field values
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
Do you have experts of the dbms
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