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What do you understand by a view? What does WITH CHECK OPTION clause for a view do?
- A view is a virtual table which comprises fields from one or more real tables.
- It is generally used to join multiple tables and get the data.
- WITH CHECK OPTION for a view prevents any modification to the data that doesn't confirm to WHERE clause of the view definition.
- This allows data belonging to the view to be updated through view.
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
Define Shared locks? Ans: Shared lock: Throughout concurrent execution of transactions, earlier than a transaction can access a data item, it has to obtain a lock on it. Now he
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
wh
Project Description: I would like to get a database of a website which has clients email name and phone number. If you are able to get information from a website, by entering
Question : (a) Data mining is one of the best ways to analyse data and using software method, hidden and unexpected patterns and relationships in sets of data can be extracte
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
The database depicted in the Visio diagram describes Proceeding , Article , Researcher , article PublishedIn a proceeding, article WrittenBy researchers and proceedings Edi
A database administrator''s responsibilities and data contents
Draw an ER diagram for company''s database schema
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