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Deadlock Prevention
One of the easiest approaches for avoiding a deadlock would be to obtain all the locks at the begin of the transaction. Though, this approach restricts concurrency very much, also you may lock some of the items that are not updated by that transaction (the transaction may contain if conditions).Therefore, better prevention algorithm have been evolved to stop a deadlock having the basic logic: not to permit circular wait to occur. This approach rolls back some of the transactions instead of letting them wait.
#Use the following database schema: 1) Patient—PatientID, Name, DOB 2) Doctor—DoctorID, Name, MedLicenseNumber, Phone 3) Medication—MedicationID, BrandName, GenericName 4) Prescrip
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice employs
Question 1 Describe the following- Clustering Indexing Question 2 Explain the following with suitable real time examples- Implementation of Integrity rules
Question 1 Draw a Data Flow Diagram for a University scenario Question 2 Discuss the following with suitable examples Relational Algebra Operators Database Pla
Redo Logs: Any database must have minimum two redo logs. These are the rules for the database; the redo logs record all modifies to the system objects or user objects. If any type
Project Description: I am having a random problem with my Wordpress site. If I click on "Publish" and "Add new", it takes me to a 404 page not found of /wp-admin/post.php (th
What is a view? A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived f
What is storage manager? A storage manager is a program module that gives the interface among the low level data keeps in a database and the application programs and queries su
composite attribute
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
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