Slice, Dice, Roll-up and Pivot are terms used in what kind of data processing?切片，切块，上卷，透视是哪个数据处理类型的述语:()?
（A）ODS贴源层(Operational Data Store)
（B）OLTP事务型数据处理(On-Line Transaction Processing)
（C）OLAP分析型数据处理(On-Line Analytic Processing)
（D）EIEIOEIEIO
（E）EDI电子数据交换(Electronic Data Interchange) 答案解析: 该题考的是OLAP的分析方式，，我把内容截图如下:一般来说，OLTP是应用系统，如OMS、ERPOLAP用于数仓和大数据分析
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