relational algebra, Database Management System

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what is union compatable?

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Data Minnning, Can i get help with weka software

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How are tables stored on Disk? We realise that every record of a table can have different amounts of data. This is due to in some records; some attribute values may be "zero".

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When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.

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Explain the EXISTS and UNIQUE functions of SQL. Give an example for each? EXISTS: The EXISTS function takes one parameter that is a SQL statement. If any records exist which

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We require an advanced system for a Sports Centre, you are concerned only with representing the data discussed below about bookings and members. (The complete system may contain ot

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