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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
What are the typical phases of query processing
Discuss the types of integrity constraints in which must be checked for the update operations - Insert and Delete. Give examples. Insert operation can violet any of the subse
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
Database Management Systems 1. Explain SQL Server 2000 Architecture with diagram. 2. Describe Second Normal and Third Normal Form. 3. Explain about query engine and stora
When are they useful? Justify with an example. The temporary tables are commonly used to support specialized rollups or exact application processing needs. Unlike a permanent t
how many types of data model in DBMS? explain data abstraction with its different level
Consider a relation s over the attributes A and B with the following characteristics: 5,000 tuples with 10 tuples per page A 2-level B+ tree index on attribute
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
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