請在SQL Server 2000中創(chuàng)建題目中的三個表，用SQL語句實現(xiàn)。
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【簡答】
請在SQL Server 2000中創(chuàng)建上課數(shù)據(jù)DB_XK，用SQL語句實現(xiàn)。
請在SQL Server 2000中創(chuàng)建題目中的三個表，用SQL語句實現(xiàn)。
題目
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考點：數(shù)據(jù)表的定義
本題考查用SQL語言創(chuàng)建數(shù)據(jù)表。創(chuàng)建數(shù)據(jù)庫的SQL語句格式是：CREATE DATABASE [數(shù)據(jù)庫名]；創(chuàng)建數(shù)據(jù)表的SQL語句格式是：CREATE TABLE [數(shù)據(jù)庫名. [所有者. ] ]<表名> (<列名><數(shù)據(jù)類型>[[DAFAULT 初值] | [ IDENTITY[(初值，增量) ] ] ]? [ROWGUIDCOL]? [NULL? |? NOT NULL] [PRIMARY KEY | UNIQUE]? [, ...])?? [CHECK? (邏輯表達式)]
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