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how many hourse have been spent on a certain project
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Using SQL create a view RS for the relations R and S. The view consists of the columns A and D renamed as X and Y in that order. Insert a tuple into it. Show the contents of t
what does glory be mean
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
what is query processing?
BCNF Boyce-Codd Normal Form A relation schema R is in BCNF if it is in 3NF and accepts an additional constraint that for every FD X A, X has to be a candidate key. If a relati
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