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Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
I need web security expert , website management Project Description: i want professional for the below . website management server management database management
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Given the following relations TRAIN (NAME, START, DEST) TICKET (PNRNO., START, DEST, FARE) PASSENGER (NAME, ADDRESS, PNRNO.) Write SQL expressions for the following queries: No
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
In order to keep pace with competitors, Space Ltd has decided to implement an ERP system in order to replace its old legacy and manual systems. Management does not have much knowle
waht is a repeating group?
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
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