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What is Information System?
Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
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Differentiate between Procedural and non procedural languages ? Procedural and non procedural languages - A procedural language specifies the operations to be performed on th
What does Aggregation mean?
I need to Map an E-R diagram to a relational schema
growing phase and shrinking phase are disjoint, why ?
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
Shared lock or Read Lock It is requested by a transaction that needs to just read the value of data item. A shared lock on a data item does not permit an exclusive lock
deffine class&object
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