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查看示例表格,其中日期1/3到1/5的唯一区别是日期字段。当唯一的区别是增量日期字段时,如何删除Redshift中的重复字段?
Date, ID, State, Amount 1/1/2017, 123, A, 1 1/2/2017, 123, B, 1 1/3/2017, 123, C, 1 1/4/2017, 123, C, 1 1/5/2017, 123, C, 1 1/6/2017, 345, B, 1
如何删除列ID,状态,金额的重复行,所以它看起来像这样?
Date, ID, State, Amount 1/1/2017, 123, A, 1 1/2/2017, 123, B, 1 1/3/2017, 123, C, 1 1/6/2017, 345, B, 1