ORA-00604: error occurred at recursive SQL level 1,ORA-00942: table or view does
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SQL> drop user HR cascade;
drop user HR cascade
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist
------解决方法--------------------
Cause:An error occurred while processing a recursive SQL statement (a statement applying to internal dictionary tables).
在运行一条递归SQL语句(该语句将应用于对内部表或数据字典的操作)时，发生错误。这样的错误好头疼啊.楼主可以先drop该用户下的所有对象，然后在drop这个空用户.
------解决方法--------------------
Create a synonym for SDO_GEOM_METADATA_TABLE under sys which points to
MDSYS.SDO_GEOM_METADATA_TABLE
