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‘Users and Information system specialists need to spend inordinate amounts of time locating and gathering data' (Watson and Hal, 1998)
Recent developments in the area of Data Warehousing and its associated technologies claim to be able to improve information management in organisations.
(i) Describe the terms ‘Database' and ‘Data Warehouse'.
(ii) Show how the Data Warehousing approach to information management improves on the Data Base Management Systems (DBMS) approach.
List the data structures implemented by the storage manager. The storage manager executes the following data structure a) Data files b) Data dictionary c) indices
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.
Define the phases of two phase locking protocol Growing phase: a transaction may get locks but not release any lock. Shrinking phase: a transaction might be release locks bu
Create an entity relationship diagram, Database Management System
Question 1 Create a table student with attributes student name, roll number, total marks and percentage. Do the following operations Insert details in to the table Update
What is a value? A data value is used for identity. This form of identity is used in relational systems.eg: The primary key value of a tuple recognize the tuple.
What is the use of with clause in SQL? The with clause gives a way of defining a temporary view whose explanation is available only to the query in which the with clause occurs
how to prepare a data dictionary for online examination system for certified courses?
explain cascading rollback
After going by the database architecture, let us now dwell on an important query: how is the data organised in a database? There are a lot of basic structures that exist in a datab
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