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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
Q. Explain data aggregatio n and discuss different design constraints. Sol. Aggregation One limitation of the E-R model is that it cannot express relationships amon
Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi
INSERT INTO command : Values can be inserted for all columns or for the selected columns Values can be given by sub query. In place of values parameter substitution
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Events4Fun is an event management company in Europe with branches in South America as well. The company is well-known for its efficiency, good-quality services, and affordable char
a brief definition
The Locking Protocol: To manage concurrency related problems we use locking. A lock is mainly a variable that is associated with a data item in the database. A lock can be located
Define instance and schema? Instance: Collection of data stored in the data base at a certain moment is Schema: The overall design of the data base is known as the data base
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
A field-groups statement or an insert statement reverses storage space and transfers values. False.
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