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Where does view definition stored?
A view definition is permanently stored as part of the database.
Why a report generator is used ? Report generator is used for print files on paper.
Explain retrieval in QBE? Retrieval in QBE : A "GUI" for expressing queries. Based on the Domain Relational Calculus (DRC) Actually invented before GUIs. Very co
What is difference between primary index and secondary index? Primary Index a) It is an ordered file whose records are of fixed length along with two fields. b) Only base
Define about the Stored Procedure - It's a set of T-SQL statements combined together to perform a single task formed by combining numerous small tasks. - When you essentiall
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
E-R model uses this symbol to represent weak entity set ? A Doubly outlined rectangle symbol is used to represent weak entity set.
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Compare the Nested-loop join and block-nested loop join Ans: Nested loop join - It is costly as worst case cost, no. of block accesses needed is n r * b s + b r where b
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
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