Presumably, the "ALTER TABLE" and "DESC" commands are from different sessions ?
Query V$SESSION_WAIT for the session running the "DESC" a few times and see what it is waiting on. Get the EVENT and P1, P2, P3 values. At 06:15 PM Monday, =?gb2312?B?wO69qL78?= wrote:
Hi And I tried to delete a foreign key by ALTER TABLE BN_MAINS DROP CONSTRAINT BN_MAINS_FOR I don¡¯t know what was happened It¡¯s possible the delete operation have not completed The table bn_mains cannot be access For example , when I run Desc bn_mains In sqlplus, then sqlplus hang
Hemant K Chitale http://hemantoracledba.blogspot.com -- //www.freelists.org/webpage/oracle-l