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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
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Define seek time. The time for repositioning the arm is known as the seek time and it enhances with the distance that the arm is known as the seek time.
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
What are stored-procedures? And what are the advantages of using them? Stored procedures are database objects that perform a user defined operation. A stored procedure can have
Define Query by Example QBE is a query language relies upon domain calculus and has two dimensional syntax. The queries are written in the horizontal and vertical dimensions of
Three way to handle missing field val
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
How do I use strap on?#
Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a
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