ORACLE数据库，数据量大，转移数据到备份表语句

Posted 2020-10-15 歌·颂

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INSERT INTO TEMP_BUS_TRAVEL_INFO 
( SELECT * FROM BUS_TRAVEL_INFO t where to_Char( start_time,‘YYYYMMDD‘)>=‘20170101‘ AND to_Char( start_time,‘YYYYMMDD‘)<=‘20170601‘)

SELECT COUNT(*) FROM TEMP_BUS_TRAVEL_INFO

日期过滤范围把查询出来的结果直接插入到新表中。然后删除。

INSERT INTO TEMP_BUS_TRAVEL_INFO 
( DELETE  BUS_TRAVEL_INFO t where to_Char( start_time,‘YYYYMMDD‘)>=‘20170101‘ AND to_Char( start_time,‘YYYYMMDD‘)<=‘20170601‘)

SELECT COUNT(*) FROM TEMP_BUS_TRAVEL_INFO