SQL delete duplicate records sql learning for a long time, I found in a building used for the test (not built Index) There's a lot of duplication of records. Later up in the deletion of duplicate records, Oracle, can only achieve rowid delete duplicate records; Also temporary tables can be built to achieve ... the only mention of several simple, practical methods, and we hope to share (table employee example).

Packet : 53607938在sql中删除重复记录(多种方法).rar filelist
在SQL中删除重复记录(多种方法).txt

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