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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
various techniques of hashing?
QUESTION (a) Give two advantages of using Linked List as compared to arrays. (b) (i) You are working as programmer at the Orange Mauritius branch. You have been asked to cre
Your OS has a set of queues, each of which is protected by a lock. To enqueue or dequeue an item, a thread must hold the lock associated to the queue. You need to implement an a
What are the typical phases of query processing
Define the term- Actors and Data Stores Actors: An actor is the active object which drives data flow graph by producing or consuming values. Actors are attached to inputs a
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
explain multi key file organisation
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