Oracle PL/SQL Tutorial/SQL PLUS Session Environment/Session Variables
Содержание
- 1 alter session set hash_area_size
- 2 alter session set NLS_DATE_FORMAT="DD-MM-YYYY"
- 3 ALTER SESSION SET optimizer_dynamic_sampling
- 4 alter session set sort_area_size = 102400000
- 5 ALTER SESSION SET SQL_TRACE = TRUE
- 6 alter session set workarea_size_policy=manual
- 7 alter system flush shared_pool
- 8 alter system quiesce restricted
- 9 alter system resume
- 10 alter system suspend
alter session set hash_area_size
<source lang="sql">
SQL> create table myTable
2 as 3 select rownum id, a.* 4 from all_objects a 5 where 1=0 6 /
SQL> SQL> SQL> SQL> set autotrace traceonly explain SQL> SQL> alter session set sort_area_size = 102400000; SQL> SQL> alter session set hash_area_size = 204800000; SQL> SQL> select a.object_type, b.object_name
2 from myTable a, myTable b 3 where a.last_ddl_time = b.last_ddl_time;
Execution Plan
Plan hash value: 2666611345
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | 67 | 3082 | 3 | |* 1 | HASH JOIN | | 67 | 3082 | 3 | | 2 | TABLE ACCESS FULL| MYTABLE | 82 | 1640 | 1 | | 3 | TABLE ACCESS FULL| MYTABLE | 82 | 2132 | 1 |
Predicate Information (identified by operation id):
1 - access("A"."LAST_DDL_TIME"="B"."LAST_DDL_TIME")
Note
- cpu costing is off (consider enabling it)
SQL> SQL> alter session set sort_area_size = 65536; SQL> SQL> alter session set hash_area_size = 131072; SQL> SQL> select a.object_type, b.object_name
2 from myTable a, myTable b 3 where a.last_ddl_time = b.last_ddl_time;
Execution Plan
Plan hash value: 2666611345
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | 67 | 3082 | 3 | |* 1 | HASH JOIN | | 67 | 3082 | 3 | | 2 | TABLE ACCESS FULL| MYTABLE | 82 | 1640 | 1 | | 3 | TABLE ACCESS FULL| MYTABLE | 82 | 2132 | 1 |
Predicate Information (identified by operation id):
1 - access("A"."LAST_DDL_TIME"="B"."LAST_DDL_TIME")
Note
- cpu costing is off (consider enabling it)
SQL> SQL> set autotrace off SQL> SQL> SQL> drop table myTable;</source>
alter session set NLS_DATE_FORMAT="DD-MM-YYYY"
<source lang="sql">
SQL> create table history
2 ( empno NUMBER(4) 3 , beginyear NUMBER(4) 4 , begindate DATE 5 , enddate DATE 6 , deptno NUMBER(2) 7 , sal NUMBER(6,2) 8 , comments VARCHAR2(60) 9 , constraint H_PK primary key 10 (empno,begindate) 11 , constraint H_BEG_END check 12 (begindate < enddate) 13 ) ;
Table created. SQL> SQL> SQL> alter session set NLS_DATE_FORMAT="DD-MM-YYYY"; Session altered. SQL> SQL> insert into history values (1,2000,"01-01-2000","01-02-2000",40, 950,""); 1 row created. SQL> insert into history values (1,2000,"01-02-2000", NULL ,20, 800,"restarted"); 1 row created. SQL> SQL> insert into history values (2,1988,"01-06-1988","01-07-1989",30,1000,""); 1 row created. SQL> insert into history values (2,1989,"01-07-1989","01-12-1993",30,1300,""); 1 row created. SQL> insert into history values (2,1993,"01-12-1993","01-10-1995",30,1500,""); 1 row created. SQL> insert into history values (2,1995,"01-10-1995","01-11-2009",30,1700,""); 1 row created. SQL> insert into history values (2,2009,"01-11-2009", NULL ,30,1600,"just hired"); 1 row created. SQL> SQL> SQL> select empno, begindate, comments
2 from history 3 where comments like "%0\%%" escape "\";
no rows selected SQL> SQL> drop table history; Table dropped. SQL></source>
ALTER SESSION SET optimizer_dynamic_sampling
<source lang="sql">
SQL> SQL> ALTER SESSION SET optimizer_dynamic_sampling = 0; Session altered. SQL> SQL> SQL> CREATE TABLE myTable AS SELECT * FROM all_objects; Table created. SQL> SQL> SQL> CREATE TABLE myTable2 AS SELECT object_id, object_name FROM myTable; Table created. SQL> SQL> ALTER TABLE myTable2 ADD object_application VARCHAR2(12); Table altered. SQL> SQL> UPDATE myTable2 SET object_application = "WORKSHOP"; 12597 rows updated. SQL> SQL> COMMIT; Commit complete. SQL> SQL> SET AUTOTRACE TRACEONLY EXPLAIN; SQL> SQL> SQL> ALTER SESSION SET optimizer_dynamic_sampling = 1; Session altered. SQL> SQL> SQL> SET AUTOTRACE OFF; SQL> SQL> DROP TABLE myTable2; Table dropped. SQL> SQL> DROP TABLE myTable; Table dropped. SQL></source>
alter session set sort_area_size = 102400000
<source lang="sql">
SQL> create table myTable
2 as 3 select rownum id, a.* 4 from all_objects a 5 where 1=0 6 /
SQL> SQL> SQL> SQL> set autotrace traceonly explain SQL> SQL> alter session set sort_area_size = 102400000; SQL> SQL> alter session set hash_area_size = 204800000; SQL> SQL> select a.object_type, b.object_name
2 from myTable a, myTable b 3 where a.last_ddl_time = b.last_ddl_time;
Execution Plan
Plan hash value: 2666611345
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | 67 | 3082 | 3 | |* 1 | HASH JOIN | | 67 | 3082 | 3 | | 2 | TABLE ACCESS FULL| MYTABLE | 82 | 1640 | 1 | | 3 | TABLE ACCESS FULL| MYTABLE | 82 | 2132 | 1 |
Predicate Information (identified by operation id):
1 - access("A"."LAST_DDL_TIME"="B"."LAST_DDL_TIME")
Note
- cpu costing is off (consider enabling it)
SQL> SQL> alter session set sort_area_size = 65536; SQL> SQL> alter session set hash_area_size = 131072; SQL> SQL> select a.object_type, b.object_name
2 from myTable a, myTable b 3 where a.last_ddl_time = b.last_ddl_time;
Execution Plan
Plan hash value: 2666611345
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | 67 | 3082 | 3 | |* 1 | HASH JOIN | | 67 | 3082 | 3 | | 2 | TABLE ACCESS FULL| MYTABLE | 82 | 1640 | 1 | | 3 | TABLE ACCESS FULL| MYTABLE | 82 | 2132 | 1 |
Predicate Information (identified by operation id):
1 - access("A"."LAST_DDL_TIME"="B"."LAST_DDL_TIME")
Note
- cpu costing is off (consider enabling it)
SQL> SQL> set autotrace off SQL> SQL> SQL> drop table myTable;</source>
ALTER SESSION SET SQL_TRACE = TRUE
<source lang="sql">
SQL> CREATE TABLE emp (
2 id NUMBER PRIMARY KEY, 3 fname VARCHAR2(50), 4 lname VARCHAR2(50) 5 );
Table created. SQL> SQL> INSERT INTO emp (id, fname, lname)VALUES (1, "A", "B"); 1 row created. SQL> INSERT INTO emp (id, fname, lname)VALUES (2, "C", "D"); 1 row created. SQL> INSERT INTO emp (id, fname, lname)VALUES (3, "Enn", "F"); 1 row created. SQL> INSERT INTO emp (id, fname, lname)VALUES (4, "G", "H"); 1 row created. SQL> INSERT INTO emp (id, fname, lname)VALUES (5, "G", "Z"); 1 row created. SQL> SQL> SQL> ALTER SESSION SET SQL_TRACE = TRUE; Session altered. SQL> SELECT lname
2 FROM emp 3 WHERE fname = "Mike";
no rows selected SQL> ALTER SESSION SET SQL_TRACE = FALSE; Session altered. SQL> SQL> drop table emp; Table dropped.</source>
alter session set workarea_size_policy=manual
<source lang="sql">
SQL> create table t as select * from all_objects where rownum < 20; Table created. SQL> SQL> exec dbms_stats.gather_table_stats( user, "T" ); PL/SQL procedure successfully completed. SQL> SQL> alter session set workarea_size_policy=manual; Session altered. SQL> alter session set sort_area_size = 65536; Session altered. SQL> set termout off SQL> select * from t where rownum < 20 order by 1, 2, 3, 4 ; OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS CON$
28 28 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS C_COBJ#
29 29 CLUSTER
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS FILE$
17 17 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS ICOL$
20 2 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS IND$
19 2 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF2 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
51 51 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF4
53 53 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_CON1
48 48 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_FILE#_BLOCK#
9 9 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_FILE1
41 41 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_IND1
39 39 INDEX
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ#
3 3 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ3 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
38 38 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_PROXY_ROLE_DATA$_1
26 26 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_TS#
7 7 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_USER1
44 44 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS PROXY_ROLE_DATA$
25 25 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UET$
13 8 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UNDO$
15 15 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
19 rows selected. SQL> SQL> set termout on SQL> alter session set sort_area_size=1048576; Session altered. SQL> set termout off SQL> select * from t where rownum < 20 order by 1, 2, 3, 4; OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS CON$
28 28 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS C_COBJ#
29 29 CLUSTER
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS FILE$
17 17 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS ICOL$
20 2 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS IND$
19 2 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF2 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
51 51 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF4
53 53 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_CON1
48 48 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_FILE#_BLOCK#
9 9 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_FILE1
41 41 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_IND1
39 39 INDEX
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ#
3 3 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ3 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
38 38 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_PROXY_ROLE_DATA$_1
26 26 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_TS#
7 7 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_USER1
44 44 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS PROXY_ROLE_DATA$
25 25 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UET$
13 8 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UNDO$
15 15 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
19 rows selected. SQL> set termout on SQL> alter session set sort_area_size=1073741820; Session altered. SQL> set termout off SQL> select * from t where rownum < 20 order by 1, 2, 3, 4; OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS CON$
28 28 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS C_COBJ#
29 29 CLUSTER
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS FILE$
17 17 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS ICOL$
20 2 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS IND$
19 2 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF2 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
51 51 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_CDEF4
53 53 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_CON1
48 48 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_FILE#_BLOCK#
9 9 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_FILE1
41 41 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_IND1
39 39 INDEX
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ#
3 3 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_OBJ3 OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
38 38 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_PROXY_ROLE_DATA$_1
26 26 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS I_TS#
7 7 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS I_USER1
44 44 INDEX
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
SYS PROXY_ROLE_DATA$
25 25 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UET$
13 8 TABLE
OWNER OBJECT_NAME
------------------------------
SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------- -------------------
CREATED LAST_DDL_ TIMESTAMP STATUS T G S
--------- ------------------- ------- - - -
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N SYS UNDO$
15 15 TABLE
07-FEB-06 07-FEB-06 2006-02-07:22:10:08 VALID N N N
19 rows selected. SQL> set termout on SQL> SQL> drop table t; Table dropped. SQL> SQL></source>
<source lang="sql">
SQL> alter system flush shared_pool; SQL> SQL> alter session set optimizer_index_cost_adj=100; SQL> SQL> alter session set optimizer_index_caching=0; SQL> SQL> begin
2 dbms_stats.import_system_stats( stattab => "SYSTEM_STATS", statid => "OLTP", statown => user ); 3 end; 4 /</source>
alter system quiesce restricted
<source lang="sql">
SQL> alter system quiesce restricted; SQL> SQL></source>
alter system resume
<source lang="sql">
SQL> alter system resume; SQL> SQL></source>
alter system suspend
<source lang="sql">
SQL> alter system suspend;</source>
