expdp hr/hr DIRECTORY=dpump_dir1 DUMPFILE=hr_scn.dmp FLASHBACK_TIME="TO_TIMESTAMP('25-08-2003 14:35:00', 'DD-MM-YYYY HH24:MI:SS')" 想省事可以用flashback_time=systimestamp 如果报ORA-39150,就用下面的选项 flashback_time=to_timestamp(localtimestamp) flashback_time=to_timestamp_tz(...
expdp hr/hr DIRECTORY=dpump_dir1 DUMPFILE=hr_scn.dmp FLASHBACK_TIME="TO_TIMESTAMP('25-08-2003 14:35:00', 'DD-MM-YYYY HH24:MI:SS')" 想省事可以用flashback_time=systimestamp 如果报ORA-39150,就用下面的选项 flashback_time=to_timestamp(localtimestamp) flashback_time=to_timestamp_tz(...
一、EXPDP和IMPDP使用说明 Oracle Database 10g引入了最新的数据泵(Data Dump)技术,数据泵导出导入(EXPD...
ORA-39001: invalid argument value ORA-39150: bad flashback time ORA-01841: (full) year must be between -4713 and +9999, and not be 0 ORA-01877: string is too long for internal buffer Replacing flashback_time=systimestamp with consistent=y which AFAIK is a backwards compatible way to ...
Bug 27092508 Flashback Queries Fails with ORA-08181 and/or ORA-01466 Due to Corrupted Timestamp Mappings in SYS.SMON_SCN_TIME This note gives a brief overview of bug 27092508. The content was last updated on: 03-NOV-2021 Click here for details of each of the sections below. ...
The mapping of timestamps to SCNs is not always exact. When using timestamps with theFLASHBACKTABLEstatement, the time to which the table is flashed back can vary by up to approximately three seconds of the time specified forTO_TIMESTAMP. If an exact point in time is required, then use...
SCN会比TIMESTAMP更精确。事实上timestamp同样是被转换成SCN。因为oracle是通过SCN来标记操作而不是时间。 每个时间点都对应一个SCN值。在10g中,系统平均每隔3秒产生一次系统时间与SCN的匹配存入sys.SMO_SCN_TIME表中。SCN和TIMESTAMP也可相互转换。 SQL> DESC SMON_SCN_TIME; ...
每隔5 分钟,系统产生一次系统时间标记与scn 的匹配并存入sys.smon_scn_time 表,该表中记录了最近1440个系统时间标记与scn 的匹配记录,由于该表只维护了最近的1440 条记录,因此如果使用as of timestamp 的方式则只能flashback 最近5 天内的数据(假设系统是在持续不断运行并无中断或关机重启之类操作的话)。
每个时间点都对应一个SCN值。在10g中,系统平均每隔3秒产生一次系统时间与SCN的匹配存入sys.SMO_SCN_TIME表中。SCN和TIMESTAMP也可相互转换。 SQL> DESC SMON_SCN_TIME; Name Type Nullable Default Comments --- --- --- --- --- THREAD NUMBER Y TIME_MP NUMBER Y TIME_DP DATE Y SCN_WRP NUMBER Y...
Bug 27092508 Flashback Queries Fails with ORA-08181 and/or ORA-01466 Due to Corrupted Timestamp Mappings in SYS.SMON_SCN_TIME This note gives a brief overview of bug 27092508. The content was last updated on: 03-NOV-2021 Click here for details of each of the sections below. ...