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Describe Database state in details?
Database state: The actual data within the database at a particular moment in time is known as a database state.
Which is another name for weak entity? Child is another name of weak entity.
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
Discuss the methods for a hash file to expand and shrink dynamically. What are the advantages and disadvantages of each? The hashing methods that permit dyanamic file expansi
Can i get help with weka software
Explain the Static or conservative Two Phase Locking: Static (or conservative) Two Phase Locking: In this type of scheme, all the data items are locked earlier than any opera
what is entity in database system?
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
write-set(T): Each data items that are written by a transaction T
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
Ask questApollo Hospitals (AH) is a popular medical service provider in Oman. AH wants to automate its business functions into an information system. The proposed information syst
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