LOGO www.themegallery.com SYSTEM ROLE IN ORACLE DEMO LOGO www.themegallery.com Nội dung demo EXECUTE_CATALOG_ROLE 1 EXP_FULL_DATABASE 2 IMP_FULL_DATABSE 3 GATHER_SYSTEM_STATISTICS 4 LOGO Chuẩn bị  create user test0 identified by p123;  create user test1 identified by p123;  create user test2 identified by p123;  create user test3 identified by p123;  create user test4 identified by p123; www.themegallery.com LOGO Chuẩn bị  grant connect, resource to test0;  grant connect, resource, execute_catalog_role to test1;  grant connect, resource, exp_full_database to test2;  grant connect, resource, imp_full_database to test3;  grant connect, resource, gather_system_statistics to test4; www.themegallery.com LOGO EXECUTE_CATALOG_ROLE  Package: DBMS_LOCK  Produres and functions:  procedure allocate_unique(…);  function request(…);  function convert(…);  function release(…);  procedure sleep( seconds in number); www.themegallery.com LOGO EXECUTE_CATALOG_ROLE www.themegallery.com connect test0/p123; exec DBMS_LOCK.sleep(50); LOGO EXECUTE_CATALOG_ROLE connect test1/p123; exec DBMS_LOCK.sleep(50); www.themegallery.com LOGO EXP_FULL_DATABASE connect test0/p123; create table A( id varchar2(10) ); insert into A values ('abc'); connect test2/p123; create table B( id varchar2(10) ); www.themegallery.com LOGO EXP_FULL_DATABASE www.themegallery.com LOGO EXP_FULL_DATABASE www.themegallery.com [...]... www.themegallery.com LOGO EXP_FULL_DATABASE www.themegallery.com LOGO IMP_FULLDATA_BASE  Cũng như export thì mọi user có role connect và resource đều có quyền import dữ liệu vào CSDL, cụ thể là schema của mình  Nếu một file export đc tạo bởi 1 user normal thì mọi user khác đều có thể import dữ liệu vào schema của mình nếu có file đó trong tay  Tuy nhiên nếu một file export bởi một dba thì chỉ có một dba... IMP_FULL_DATABASE www.themegallery.com LOGO IMP_FULL_DATABASE www.themegallery.com LOGO GATHER _SYSTEM_ STATISTICS Connect test0/p123; Select * from SYS.AUX_STATS$; Delete from SYS.AUX_STATS$ where PVAL2 = 'COMPLETED‘; Update SYS.AUX_STATS$ set PVAL2= '‘ where PVAL2 = 'COMPLETED‘; www.themegallery.com LOGO GATHER _SYSTEM_ STATISTICS Connect test4/p123; Select * from SYS.AUX_STATS$; Update SYS.AUX_STATS$ set . LOGO www.themegallery.com SYSTEM ROLE IN ORACLE DEMO LOGO www.themegallery.com Nội dung demo EXECUTE_CATALOG _ROLE 1 EXP_FULL_DATABASE 2 IMP_FULL_DATABSE 3 GATHER _SYSTEM_ STATISTICS 4 LOGO Chuẩn. seconds in number); www.themegallery.com LOGO EXECUTE_CATALOG _ROLE www.themegallery.com connect test0/p123; exec DBMS_LOCK.sleep(50); LOGO EXECUTE_CATALOG _ROLE connect