如何查找重复的纪录：
SELECT * FROM TABLE_NAME
WHERE ROWID!=(SELECT MAX(ROWID) FROM TABLE_NAME D
WHERE TABLE_NAME.COL1=D.COL1 AND TABLE_NAME.COL2=D.COL2);
如何删除重复记录？
DELETE FROM TABLE_NAME
WHERE ROWID!=(SELECT MAX(ROWID) FROM TABLE_NAME D
WHERE TABLE_NAME.COL1=D.COL1 AND TABLE_NAME.COL2=D.COL2)
posted on 2005-08-12 16:51
Java&Inter 阅读(256)
评论(0) 编辑 收藏 所属分类:
数据库技术