数据仓库中存放的数据是为了适应数据的 【20】 处理要求而集成起来的。
参考答案：分析
解析： 数据库的普及带来了人们对于数据处理的更清晰的认识；可以分为两类：操作型和分析型。操作型也称为事务处理，其重点在响应时间、数据安全、数据完整等方面，而分析型的重点在便于管理人员的决策分析。两者的巨大差异使得他们的分离成为必然。传统的数据库系统着重于事物，新分离出来的就是数据仓库。
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| A professor told his students to go into the city slums (贫民窟) to study the life of 200 boys. He asked them to 1 reports about each boy's life and future. Every one of the students wrote, "He doesn't have any hope." Twenty-five years 2 , another professor read about the earlier study. He told his students to 3 what had happened to the boys. They tried very hard and found that 176 of the boys had become successful 4 doctors, teachers and scientists. The professor was very 5 and decided to study it further. Luckily, all the men were living near the place and he was able to ask each one, "What made you 6 ?" Each one answered, "There was a teacher." The teacher was 7 living there, so the professor found him and ask the old man 8 he had used to pull those boys 9 the slums, and change them into successful people. The teacher's 10 began to shine and said with a sweet smile, "It's really very easy. I loved those boys." | ||||
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