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Oracle & Distributed Databases
1. Differentiate between PL/SQL functions and procedures.
2. Draw the diagram of logical structure of oracle database and explain it in brief.
3. Discuss the objectives of Query Processing.
4. Explain the steps involved in recovery of distributed transactions.
5. Create a PL/SQL program to insert data into student table and display the details of the student having Reg.No 1010.
6. Create a PL/SQL program to generate first 10 natural numbers using loop, while and for.
Write short note on Data models? Data models: A data model is an abstract model which elaborates how data is represented and accessed. The term data model has two commonly ac
Explain Clustering file organization (i) Determine if a record of file is physically ordered on a nonkey field - that does not comprise a different value for each record - that
What is Functional Dependency? A Functional dependency is shown by X Y among two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuple
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
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.
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
What is database Trigger? A database trigger is a PL/SQL block that can explained to automatically execute for insert, update, and delete statements against a table. The trigge
Question : (a) Database Management Systems (DBMS) is the foundation of business intelligence. Explain the following concepts related to DBMS: (i) Entity Relationship Diagr
What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
Define the five basic operators of relational algebra? Five basic operators of relational algebra are: 1. Union (∪∪∪∪) - Selects tuples which are in either P or Q or in both
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