[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f71fZkd85H5CZBNgC8P5umacSrR4X6FxgswwkXI9rEZo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-06-16 20:13:31",201902290,[8,9,10,11],"数据不能长期保存","由文件系统管理数据","数据不共享","数据不具有独立性",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},298,"7eff1f85a3f969b86086e8a5d08fb800","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F39d7cbe68df0458cdab6b759a60a7e84.jpeg","数据库应用技术（2025上）","exam_161661057","模拟测试","以下选项中,( )不是数据管理技术发展的人工管理阶段的特征",[21,26,35,44,53,63,72,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],201902295,[30,31,32,33],"记录(元组)","关系","关系模式","键(码、关键字)","关系模型是以二维数据表的形式组织数据.其中,( )是关系的描述,通常可以简记为:关系名(属性1,属性2,…,属性n)",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],201902305,[39,40,41,42],"YEAR类型","DATE类型","TIME类型","DATETIME类型","以下选项中,( )用于存储年份数据",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],201902307,[48,49,50,51],"ALTER TABLE book MODIFY b_name VARCHAR(15) NOT NULL","ALTER TABLE book MODIFY b_name VARCHAR(15) UNIQUE","ALTER TABLE book MODIFY b_name VARCHAR(15) PRIMARY KEY","ALTER TABLE book MODIFY b_name VARCHAR(15) DEFAULT 书名","以下选项中,( )可以设置非空约束",{"answer":54,"createTime":55,"id":56,"options":57,"question":62,"source":24,"type":25},[],"2025-06-16 20:13:32",201902314,[58,59,60,61],"SHOW DATABASES","SHOW CREATE DATABASE","USE DATABASE()","SELECT DATABASE()","以下选项中,查看当前选择的数据库的语句是( )",{"answer":64,"createTime":55,"id":65,"options":66,"question":71,"source":24,"type":25},[],201902329,[67,68,69,70],"NOT NULL","UNIQUE","PRIMARY KEY","DEFAULT","创建数据表时,在字段的数据类型后面追加( )<默认值>设置默认值约束",{"answer":73,"createTime":74,"id":75,"options":76,"question":79,"source":24,"type":25},[],"2025-06-16 20:13:33",201902333,[31,77,78,32],"元组","域","关系模型中的( )是指属性的取值范围",{"answer":81,"createTime":74,"id":82,"options":83,"question":88,"source":24,"type":25},[],201902339,[84,85,86,87],"UPDATE user SET id = u001","UPDATE user(id,username) VALUES('u001','jack')","UPDATE user SET id='u001',username='jack'","UPDATE INTO user SET id = 'u001', username='jack'","以下关于更新数据的SQL语句中,正确的是( )",{"answer":90,"createTime":74,"id":91,"options":92,"question":97,"source":24,"type":25},[],201902348,[93,94,95,96],"SELECT * FROM book","SELECT COUNT(*) FROM book","SELECT SUM(*) FROM book","SELECT NUMBER(*) FROM book","查询图书信息book表中有多少本图书的SQL语句是( )",{"answer":99,"createTime":100,"id":101,"options":102,"question":107,"source":24,"type":25},[],"2025-06-16 20:13:34",201902354,[103,104,105,106],"SELECT * FROM book ORDER BY price DESC LIMIT -1,10","SELECT * FROM book ORDER BY price DESC LIMIT 1,10","SELECT * FROM book ORDER BY price DESC LIMIT 10,1","SELECT * FROM book ORDER BY price DESC LIMIT 0,10","查询图书信息emp表中图书价格price字段值最高的前10本图书信息的SQL语句是( )"]