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What is MySQL?
MySQL is a relational database management system which has eleven million installations. It can be used for both Linux and Window. Managing database includes adding, accessing, processing data in a database.
what is inverted and multilist structure
Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
Define Deadlock avoidance These protocols as well ensure that the system will never enter a deadlock state although the way it is done is different from deadlock prevention. I
Illustrate the statement 'Projection operation distributes over the union operation'. Give an example. Ans: Π L (E 1 ∪ E 2 ) = (Π L (E 1 )) ∪ (Π L (E 2 )) This says th
Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
Explain the cartesian product in Database Management System
Data Mining 1. What is data mining? Write Data Mining applications. 2. Explain OLAP? Write the benefits of OLAP. 3. What are the key features of a Data Warehouse? 4. W
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