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What are the technique to define a schema completely ?
A schema is completely define by DDL and DML query language.
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
database help
definition and its work
What is called block-level striping? Block level striping stripes blocks across many disks. It treats the array of disks as a large disk, and provides blocks logical numbers
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
Data Mining 1. What is data mining? Write Data Mining applications. 2. Explain OLAP? Write the benefits of OLAP. 3. What are the key features of a Data Warehouse? 4. W
What is a query tree? Ans: A query tree, as well known as operator graph, is a tree data structure that corresponds to a relational algebra expression. It denotes the inpu
When are they useful? Justify with an example. The temporary tables are commonly used to support specialized rollups or exact application processing needs. Unlike a permanent t
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
A practice called Perfect Pets provides private health care for domestic pets throughout America. This service is provided through various clinics located in the main cities of Ame
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