Santosh,
Could you please Ask your DBA to drop and recreate schema
Please append all the below actions.
create Schema user :
Create user <PROJECT NAME_DB> identified by tdtdtd; ( <= password of qcsiteadmin_db for ALM11 )
Alter user <PROJECT NAME_DB> default tablespace QCTABLESPACE;
Alter user <PROJECT NAME_DB> temporary tablespace TEMP;
Alter user <PROJECT NAME_DB> quota unlimited on QCTABLESPACE;
Grant create session to <PROJECT NAME_DB> ;
Grant create table to <PROJECT NAME_DB> ;
Grant create view to <PROJECT NAME_DB> ;
Grant create trigger to <PROJECT NAME_DB> ;
Grant create sequence to <PROJECT NAME_DB> ;
Grant create procedure to <PROJECT NAME_DB> ;
Grant CTXAPP to <PROJECT NAME_DB> ;
Db login user id :qcadmin(Your DB Administrator user name in your ENV) need to assign to all the db user schema(<PROJECT NAME_DB> )and grant full privileges.