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need requirement analysis for database management of stock market
List out various user authorization to modify the database schema. a) Index authorization b) Resource authorization c) Alteration authorization d) Drop authorizat
Multi-list file Organisation Multi-list file organisation is a multi-index linked file organisation. A linked file organisation is a logical organisation where physical orderin
Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
Question: Using the data model express the following queries in SQL. (a) Create the Table named "Cinema" and make the cinema_code to be the primary key of the relation and
What is the difference among a primary index and a secondary index? Primary Index: A primary index is an ordered file whose records are of fixed length along with two fields.
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
Consider an information system designed for an online company which provides IT products and services These include desktops, laptops, networking products, IT books, parts, and
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
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