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State about the Tables- DBMS
Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record that is made up of a number of fields (columns in the table). Data type in the fields is generally either text, numeric or time/date. Most databases comprise a number of tables that are generally linked together in some way.
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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
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
the of super market system done in database
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
Describe multi key files
Question (a) Visual Basic is governed by an event processor. Explain the meaning of this phrase. (b) Differentiate between an general procedure and event procedure. (c)
What is a disjoint less constraint? Ans: It needs that an entity belongs to no much more than one level entity set. Disjoint less constraint needs that an entity belongs to
I need an ERD created for any original database(can be on anything). It needs to be 3NF. I then need all the CREATE STATEMENTS, INSERT STATEMENTS(anything you can think of as long
Describe the shadow paging technique.
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