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Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
what is stracture of dabms
Define- relational algebra. The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relati
Oracle Fusion Middleware: Key Skills: Consulting,Architect, Oracle Fusion Middleware,ECM, UCM, Stellent,Identity Management, SOA Suites, BPEL, ESB,OAM,OIM,J2ee, Java, Livelink
What is Outer join? They can be employed while we want to keep all the tuples in R, or all those in S or all those in both relations in the result of the JOIN in spite of of w
Normalize the following table upto and including the 3NF. Submit a 1 page printout of only the final set of normalized tables in Data Architect. Just use Data Architect to do the t
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
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