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Describe the algorithm to draw the dependency graph? Ans: Algorithm to draw Precedence Graph is like this: a. For every transaction T i participating in schedule S, make
how many hourse have been spent on a certain project
Project Description: We have purchased facebook style chat software which we are using with our site. It is prepared in PHP but the rest of the site is developed asp.net. Iss
What are the two types of blocks in the fixed -length representation? Define them. Anchor block: Have the first record of a chain. Overflow block: Have the records other tha
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
In the ER diagram, one example of subclassing is depicted following the Services entity. The subclasses Item Based and Time Based are created. The entity Services gains the attribu
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
example of embedded SQL query
using the invoice table shown below,write the relational schema,draw a dependencies,inclunding all partial and transitive dependencies.assume that the table does not contain repeat
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