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    1. oracle一行數(shù)據(jù)轉(zhuǎn)成一列 Oracle列轉(zhuǎn)行,行轉(zhuǎn)列?

      Oracle列轉(zhuǎn)行,行轉(zhuǎn)列?在Oracle下,函數(shù)decode可用于處理:選擇產(chǎn)品名稱,sum(decode(quarter,“first quarter”,sales,0))第一季度銷售額,sum(

      Oracle列轉(zhuǎn)行,行轉(zhuǎn)列?

      在Oracle下,函數(shù)decode可用于處理:

      選擇產(chǎn)品名稱,

      sum(decode(quarter,“first quarter”,sales,0))第一季度銷售額,

      sum(decode(quarter,“second quarter”,sales,0))第二季度銷售額,

      sum(decode(quarter,“third quarter”,sales,0))第三季度銷售額sum(decode(quarty,“fourth quarty”,sales,0))第四季度的銷售額,

      來自表名

      按產(chǎn)品名分組