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                            (1) 數據庫是為捕獲和存儲數據而設計
(2) 數據倉庫是為分析數據而設計
| 		|數據庫	|數據倉庫|
| --- | --- | --- |
| 本質	|數據的集合	|數據的集合|
| 定位	|事務處理OLTP	|數據分析OLAP|
| 面向群體	|前端用戶	|管理人員|
| 操作	|增刪改查	|查詢|
| 數據粒度	|事件記錄	|維度|
| 表結構	|3NF	|星型、雪花|
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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