Blackboard

2.

Blackboard Blackboard -

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Blackboard

. 4

Blackboard

. 5

Blackboard

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Blackboard

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Blackboard Blackboard

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2 - 2

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: R. Ramakrishnan R. Elmasri S.B.

J. Gehrke Navathe:

,

! , (5 ) !

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R Ramakrishnan J Gehrke R. Ramakrishnan J. Gehrke

, ! 2002

R. Elmasri S.B. Navathe , (5 ) ! 2007

T. Connolly, C. Begg . , , , . 2008

C.J. Date , 6 1996

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14.

XML, XML-Schema, Xquery

15.