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Write a four-page paper how relational data solution is applied to presnt Video Store business.
1. Describe Relational Databases
2. Write History of databases
3. Write entities that are formed in the Video Store business
4. Explain Primary Key, data types, and type of relationships among tables
5. Determine extra entities (3 entities that could be added to the problem statement as the business grow (30 points)
6. Explain primary key, data types, and type of relationship among new tables
7. Explain 3 extra queries (different from what was submitted in the assignment)
8. Survey Access Database, Oracle, and SQL Server and justify which database should be selected for the video store business.
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One Erlang is equal to (A) 3600 CCS (B) 36 CCS (C) 60 CCS (D) 24 CCS Ans: One Erlang is equivalent to 3600 CCS.
WHAT IS CPE
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The excess 3 code of decimal number 26 is ? Ans. (26) 10 in BCD is (00100110) BCD Add 011 to all BCD 01011001 for excess - 3
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Q. Find the de Broglie wavelength of electron in the fourth orbit of hydrogen atom. We know that, λ = 2πr / n λ4 = 2πr 4 / 4 = 2π (4 2 r1) / 4 = 2 X
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