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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
What are the two types of errors? The two types of errors are: a) Logical error b) System error
task upload
What is a Transaction? A transaction is an event which happens on the database. Generally a transaction reads a value from the database or writes a value to the database. If y
Oracle Fusion Middleware: Key Skills: Consulting,Architect, Oracle Fusion Middleware,ECM, UCM, Stellent,Identity Management, SOA Suites, BPEL, ESB,OAM,OIM,J2ee, Java, Livelink
discuss the purpose of the concurrency control?
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
i need help for assignment ..
Problem: (a) Briefly explain the ‘Hierarchical Database Model' using appropriate diagram. (b) List and briefly describe five potential benefits of the database approach comp
what is Nested relational model? Explain with examples.
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
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