alter session set workarea_size_policy=manual : Session Variables « SQL PLUS Session Environment « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » SQL PLUS Session Environment » Session Variables 
29. 62. 6. alter session set workarea_size_policy=manual
SQL> create table t as select from all_objects where rownum < 20;

Table created.

SQL>
SQL> exec dbms_stats.gather_table_statsuser, '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 where rownum < 20 order by 123;

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 where rownum < 20 order by 1234;

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 where rownum < 20 order by 1234;

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>
29. 62. Session Variables
29. 62. 1. ALTER SESSION SET SQL_TRACE = TRUE
29. 62. 2. ALTER SESSION SET optimizer_dynamic_sampling
29. 62. 3. alter session set NLS_DATE_FORMAT='DD-MM-YYYY'
29. 62. 4. alter session set hash_area_size
29. 62. 5. alter session set sort_area_size = 102400000
29. 62. 6. alter session set workarea_size_policy=manual
29. 62. 7. alter system flush shared_pool
29. 62. 8. alter system quiesce restricted
29. 62. 9. alter system resume
29. 62. 10. alter system suspend
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