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  • statspack

    参考视频

    [bbk1269]

    [bbk1270]

    [bbk1271]

    [bbk1272]

    [bbk1279]

    statspack配置文件:sprepcon.sql

    statspack文档:spdoc.txt

    report

    • instance report
      • spreport.sql
      • sprepins.sql(multi-instance)->多个实例时使用
    • sqlp report
      • sprepsql.sql
      • sprsqins.sql(multi-instance)->多个实例时使用

    configure

    • database parameters
    • snapshot parameters
    • instance report parameters
    • sql report prameters

    与statistics相关的数据库参数

    SQL> show parameter statistics
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    optimizer_use_pending_statistics     boolean     FALSE
    statistics_level                     string      TYPICAL
    timed_os_statistics                  integer     0
    timed_statistics                     boolean     TRUE
    SQL> 
    View Code

    statistics_level->{ALL | TYPICAL | BASE}

    与snapshot相关的参数

    snapshot level

    • >=0
    • >=5
    • >=6
    • >=7
    • >=10

    snapshot parameter table(在执行snapshot时,如果不输入任何参数,就会读这张表中的参数)

    SQL> desc stats$statspack_parameter;
     Name                                      Null?    Type
     ----------------------------------------- -------- ----------------------------
     DBID                                      NOT NULL NUMBER
     INSTANCE_NUMBER                           NOT NULL NUMBER
     SESSION_ID                                NOT NULL NUMBER
     SNAP_LEVEL                                NOT NULL NUMBER
     NUM_SQL                                   NOT NULL NUMBER
     EXECUTIONS_TH                             NOT NULL NUMBER
     PARSE_CALLS_TH                            NOT NULL NUMBER
     DISK_READS_TH                             NOT NULL NUMBER
     BUFFER_GETS_TH                            NOT NULL NUMBER
     SHARABLE_MEM_TH                           NOT NULL NUMBER
     VERSION_COUNT_TH                          NOT NULL NUMBER
     PIN_STATSPACK                             NOT NULL VARCHAR2(10)
     ALL_INIT                                  NOT NULL VARCHAR2(5)
     LAST_MODIFIED                                      DATE
     UCOMMENT                                           VARCHAR2(160)
     JOB                                                NUMBER
     SEG_PHY_READS_TH                          NOT NULL NUMBER
     SEG_LOG_READS_TH                          NOT NULL NUMBER
     SEG_BUFF_BUSY_TH                          NOT NULL NUMBER
     SEG_ROWLOCK_W_TH                          NOT NULL NUMBER
     SEG_ITL_WAITS_TH                          NOT NULL NUMBER
     SEG_CR_BKS_RC_TH                          NOT NULL NUMBER
     SEG_CU_BKS_RC_TH                          NOT NULL NUMBER
     OLD_SQL_CAPTURE_MTH                       NOT NULL VARCHAR2(10)
    
    SQL> 
    stats$statspack_parameter
    SQL> select snap_level from stats$statspack_parameter;
    
    SNAP_LEVEL
    ----------
             5
    
    SQL> execute statspack.snap(i_snap_level=>7,i_modify_parameter=>'true');
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_level from stats$statspack_parameter;
    
    SNAP_LEVEL
    ----------
             7
    
    SQL> 
    修改表stats$statspack_parameter中的默认参数值.
    SQL> execute statspack.modify_statspack_parameter(i_snap_level=>6);
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_level from stats$statspack_parameter;
    
    SNAP_LEVEL
    ----------
             6
    
    SQL> 
    使用包statspack.modify_statspack_parameter修改snapshot_levle为6
    SQL> select count(*) from stats$snapshot;
    
      COUNT(*)
    ----------
             3
    
    SQL> 
    查看采集了多少snapshot
    SQL>execute dbms_job.remove(62);
    PL/SQL procedure successfully completed.
    删除job

    与instance相关的配置参数

    相关的配置文件sprepcon.sql 实际上instance report 与 sql report相关的报表所使用的参数均为sprepcon.sql

    define num_days = '';

    参数解读:假如为'',表示列出所有snapshot;假如设置为10,就表示列出最近10天的snapshot信息. 

    与sql report相关的参数

    相关的配置文件sprepcon.sql

    输出sql report可以根据sql的hash value来生成.

    maintenance

    在众多的snapshot中,那些被有用的,成为baseline.

    purge只会把那些没有标记为baseline的snapshot给删除掉.

    • make_baseline & clear_baseline
    • purge snapshot except baseline
    • truncate all tables with perfstat schema
    • drop perfstat schema
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             1
             2
            11
    
    SQL> execute statspack.snap;
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             1
             2
            11
            21
    
    SQL> show user
    USER is "PERFSTAT"
    SQL> 
    如何生成statspack报告?
    SQL> show user
    USER is "PERFSTAT"
    SQL> execute statspack.make_baseline(i_begin_snap=>1,i_end_snap=>11);
    
    PL/SQL procedure successfully completed.
    
    SQL> 
    将snap_id为1至11做base_line标记.
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             1
             2
            11
            21
    
    SQL> show user
    USER is "PERFSTAT"
    SQL> execute statspack.make_baseline(i_begin_snap=>1,i_end_snap=>11);
    
    PL/SQL procedure successfully completed.
    
    SQL> execute statspack.purge(i_begin_snap=>1,i_end_snap=>21);
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             1
             2
            11
    
    SQL> 
    使用statspack.purge进行清除1至21之后,就会将中间没有被标记为baseline的snapshot给清除掉.
    SQL> execute statspack.clear_baseline(i_begin_snap=>1,i_end_snap=>11,i_snap_range=>false);
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             1
             2
            11
    
    SQL> execute statspack.purge(i_begin_snap=>1,i_end_snap=>2);
    
    PL/SQL procedure successfully completed.
    
    SQL> select snap_id from stats$snapshot;
    
       SNAP_ID
    ----------
             2
            11
    
    SQL> 
    清除baseline之后,再进行purge

    truncate all tables with perfstat schema

    truncate all tables with perfstat schema使用到的是sptrunc.sql脚本

    11203ora-> sqlplus perfstat/perfstat
    
    SQL*Plus: Release 11.2.0.3.0 Production on Tue Jul 30 10:09:05 2013
    
    Copyright (c) 1982, 2011, Oracle.  All rights reserved.
    
    
    Connected to:
    Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    
    SQL> @?/rdbms/admin/sptrunc.sql
    
    Warning
    ~~~~~~~
    Running sptrunc.sql removes ALL data from Statspack tables.  You may
    wish to export the data before continuing.
    
    
    About to Truncate Statspack Tables
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    If would like to exit WITHOUT truncating the tables, enter any text at the
    begin_or_exit prompt (e.g. 'exit'), otherwise if you would like to begin
    the truncate operation, press <return>
    
    
    Enter value for begin_or_exit: 
    Entered at the 'begin_or_exit' prompt
    
    ... Starting truncate operation
    
    Table truncated.
    
    
    Table truncated.
    
    
    Table truncated.
    
    
    Table truncated.
    
    
    Table truncated.
    
    
    Table truncated.
    
    
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    Table truncated.
    
    
    Table truncated.
    
    
    2 rows deleted.
    
    
    2 rows deleted.
    
    
    Commit complete.
    
    
    Package altered.
    
    
    ... Truncate operation complete
    
    SQL> 
    执行truncate操作.
    SQL> select * from stats$snapshot;
    
    no rows selected
    
    SQL> 
    stats$snapshot查看数据,已经不存在.

    drop perfstat schema

    SQL> show user
    USER is "SYS"
    SQL> @?/rdbms/admin/spdrop.sql      
    以sys用户登陆,执行@?/rdbms/admin/spdrop.sql语句.
    11203ora-> vi /u01/app/oracle/product/11.2.0/db_1/rdbms/admin/spdusr.lis 
    
    
    View dropped.
    
    
    Synonym dropped.
    
    
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    "/u01/app/oracle/product/11.2.0/db_1/rdbms/admin/spdusr.lis" 55L, 361C       1,0-1         Top
    
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    User dropped.
    
    
    NOTE:
    SPDUSR complete. Please check spdusr.lis for any errors.
    查看drop日志:
    11203ora-> vi /u01/app/oracle/product/11.2.0/db_1/rdbms/admin/spdtab.lis 
    
    Dropping old versions (if any)
    
    Synonym dropped.
    
    
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    "/u01/app/oracle/product/11.2.0/db_1/rdbms/admin/spdtab.lis" 455L, 2800C     1,1           Top
    Dropping old versions (if any)
    
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                                                                                                                                                                                                 1,1           Top
    查看drop table日志
    SQL> select username from dba_users order by 1;
    
    USERNAME
    ------------------------------
    ANONYMOUS
    APEX_030200
    APEX_PUBLIC_USER
    APPQOSSYS
    ARCER
    BI
    CTXSYS
    DBSNMP
    DIP
    EXFSYS
    FLOWS_FILES
    
    USERNAME
    ------------------------------
    HR
    IX
    MDDATA
    MDSYS
    MGMT_VIEW
    OE
    OLAPSYS
    ORACLE_OCM
    ORDDATA
    ORDPLUGINS
    ORDSYS
    
    USERNAME
    ------------------------------
    OUTLN
    OWBSYS
    OWBSYS_AUDIT
    PM
    RMAN
    SCOTT
    SH
    SI_INFORMTN_SCHEMA
    SPATIAL_CSW_ADMIN_USR
    SPATIAL_WFS_ADMIN_USR
    SYS
    
    USERNAME
    ------------------------------
    SYSMAN
    SYSTEM
    TEST1
    WMSYS
    XDB
    XS$NULL
    
    39 rows selected.
    
    SQL> 
    校验用户perfstat已经不存在.

    如何导入perfstat用户?

    前提:创建好用户,创建好权限.

    创建用户的话,我们使用oracle提供好的spcusr.sql脚本.但是此脚本需要做修改.

    SQL> create user perfstat identified by perfstat default tablespace ts_perf temporary tablespace temp quota unlimited on ts_perf;
    
    User created.
    
    SQL> 
    创建用户perfstat
    11203ora-> vi temp01.sql 
    
    grant select on V_$THREAD                   to PERFSTAT;
    grant select on V_$CR_BLOCK_SERVER          to PERFSTAT;
    grant select on V_$CURRENT_BLOCK_SERVER     to PERFSTAT;
    grant select on V_$INSTANCE_CACHE_TRANSFER  to PERFSTAT;
    grant select on V_$FILE_HISTOGRAM           to PERFSTAT;
    grant select on V_$EVENT_HISTOGRAM          to PERFSTAT;
    grant select on V_$EVENT_NAME               to PERFSTAT;
    grant select on V_$SYS_TIME_MODEL           to PERFSTAT;
    grant select on V_$SESS_TIME_MODEL          to PERFSTAT;
    grant select on V_$STREAMS_CAPTURE           to PERFSTAT;
    grant select on V_$STREAMS_APPLY_COORDINATOR to PERFSTAT;
    grant select on V_$STREAMS_APPLY_READER      to PERFSTAT;
    grant select on V_$STREAMS_APPLY_SERVER      to PERFSTAT;
    grant select on V_$PROPAGATION_SENDER        to PERFSTAT;
    grant select on V_$PROPAGATION_RECEIVER      to PERFSTAT;
    grant select on V_$BUFFERED_QUEUES           to PERFSTAT;
    grant select on V_$BUFFERED_SUBSCRIBERS      to PERFSTAT;
    grant select on V_$RULE_SET                  to PERFSTAT;
    grant select on V_$OSSTAT                    to PERFSTAT;
    grant select on V_$PROCESS                   to PERFSTAT;
    grant select on V_$PROCESS_MEMORY            to PERFSTAT;
    grant select on V_$STREAMS_POOL_ADVICE       to PERFSTAT;
    grant select on V_$SGA_TARGET_ADVICE         to PERFSTAT;
    grant select on V_$SQLSTATS                  to PERFSTAT;
    grant select on V_$MUTEX_SLEEP               to PERFSTAT;
    grant select on V_$DYNAMIC_REMASTER_STATS    to PERFSTAT;
    grant select on V_$IOSTAT_FUNCTION           to PERFSTAT;
    grant select on V_$IOSTAT_FILE               to PERFSTAT;
    grant select on V_$MEMORY_TARGET_ADVICE      to PERFSTAT;
    grant select on V_$MEMORY_RESIZE_OPS         to PERFSTAT;
    grant select on V_$MEMORY_DYNAMIC_COMPONENTS to PERFSTAT;
    grant select on V_$MEMORY_CURRENT_RESIZE_OPS to PERFSTAT;
    
    
    /*  Packages  */
    grant execute on DBMS_SHARED_POOL to PERFSTAT;
    grant execute on DBMS_JOB         to PERFSTAT;
    
    "temp01.sql" 102L, 4945C                                                     102,0-1       Bot
    创建编辑权限文件脚本.
    SQL> @/home/oracle/temp01.sql
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    
    Grant succeeded.
    
    grant select on STATS$X_$KCBFWAIT       to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$X_$KSPPSV         to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$X_$KSPPI          to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$X_$KSXPPING       to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$V_$FILESTATXS     to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$V_$TEMPSTATXS     to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$V_$SQLXS          to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    grant select on STATS$V_$SQLSTATS_SUMMARY to PERFSTAT
                    *
    ERROR at line 1:
    ORA-00942: table or view does not exist
    
    
    
    Grant succeeded.
    
    
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    SQL> 
    执行权限文件脚本。

    这个导入脚本,暂时存在问题.

    userid='sys/oracle@testdb as sysdba '
    file=/home/oracle/perfstat.dmp
    full=y
    
    "impperfstat.par" 3L, 76C     
    创建编辑导入脚本impperfstat.par
    11203ora-> imp parfile=impperfstat.par 
    
    Import: Release 11.2.0.3.0 - Production on Tue Jul 30 10:49:19 2013
    
    Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
    
    
    Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    
    Export file created by EXPORT:V11.02.00 via direct path
    
    Warning: the objects were exported by PERFSTAT, not by you
    
    import done in AL32UTF8 character set and AL16UTF16 NCHAR character set
    . importing PERFSTAT's objects into SYS
    . . importing table        "STATS$BUFFERED_QUEUES"          0 rows imported
    . . importing table   "STATS$BUFFERED_SUBSCRIBERS"          0 rows imported
    . . importing table "STATS$BUFFER_POOL_STATISTICS"          2 rows imported
    . . importing table        "STATS$CR_BLOCK_SERVER"          0 rows imported
    . . importing table   "STATS$CURRENT_BLOCK_SERVER"          0 rows imported
    . . importing table      "STATS$DATABASE_INSTANCE"          2 rows imported
    . . importing table        "STATS$DB_CACHE_ADVICE"         40 rows imported
    . . importing table               "STATS$DLM_MISC"          0 rows imported
    . . importing table "STATS$DYNAMIC_REMASTER_STATS"          0 rows imported
    . . importing table     "STATS$ENQUEUE_STATISTICS"        161 rows imported
    . . importing table        "STATS$EVENT_HISTOGRAM"       1269 rows imported
    . . importing table             "STATS$FILESTATXS"         22 rows imported
    . . importing table         "STATS$FILE_HISTOGRAM"         86 rows imported
    . . importing table             "STATS$IDLE_EVENT"        135 rows imported
    . . importing table "STATS$INSTANCE_CACHE_TRANSFER"          0 rows imported
    . . importing table      "STATS$INSTANCE_RECOVERY"          2 rows imported
    . . importing table     "STATS$INTERCONNECT_PINGS"          0 rows imported
    . . importing table        "STATS$IOSTAT_FUNCTION"         28 rows imported
    . . importing table   "STATS$IOSTAT_FUNCTION_NAME"         14 rows imported
    . . importing table       "STATS$JAVA_POOL_ADVICE"         20 rows imported
    . . importing table                  "STATS$LATCH"       1106 rows imported
    . . importing table         "STATS$LATCH_CHILDREN"          0 rows imported
    . . importing table   "STATS$LATCH_MISSES_SUMMARY"         64 rows imported
    . . importing table           "STATS$LATCH_PARENT"          0 rows imported
    . . importing table      "STATS$LEVEL_DESCRIPTION"          5 rows imported
    . . importing table           "STATS$LIBRARYCACHE"         40 rows imported
    . . importing table   "STATS$MEMORY_DYNAMIC_COMPS"         32 rows imported
    . . importing table      "STATS$MEMORY_RESIZE_OPS"         16 rows imported
    . . importing table   "STATS$MEMORY_TARGET_ADVICE"         12 rows imported
    . . importing table            "STATS$MUTEX_SLEEP"          6 rows imported
    . . importing table                 "STATS$OSSTAT"         44 rows imported
    . . importing table             "STATS$OSSTATNAME"         22 rows imported
    . . importing table              "STATS$PARAMETER"        714 rows imported
    . . importing table                "STATS$PGASTAT"         34 rows imported
    . . importing table      "STATS$PGA_TARGET_ADVICE"         28 rows imported
    . . importing table  "STATS$PROCESS_MEMORY_ROLLUP"        116 rows imported
    . . importing table         "STATS$PROCESS_ROLLUP"         39 rows imported
    . . importing table   "STATS$PROPAGATION_RECEIVER"          0 rows imported
    . . importing table     "STATS$PROPAGATION_SENDER"          0 rows imported
    . . importing table         "STATS$RESOURCE_LIMIT"          8 rows imported
    . . importing table               "STATS$ROLLSTAT"         22 rows imported
    . . importing table       "STATS$ROWCACHE_SUMMARY"        114 rows imported
    . . importing table               "STATS$RULE_SET"          2 rows imported
    . . importing table               "STATS$SEG_STAT"         29 rows imported
    . . importing table           "STATS$SEG_STAT_OBJ"         27 rows imported
    . . importing table          "STATS$SESSION_EVENT"          0 rows imported
    . . importing table                "STATS$SESSTAT"          0 rows imported
    . . importing table        "STATS$SESS_TIME_MODEL"          0 rows imported
    . . importing table                    "STATS$SGA"          8 rows imported
    . . importing table                "STATS$SGASTAT"         55 rows imported
    . . importing table      "STATS$SGA_TARGET_ADVICE"         12 rows imported
    . . importing table     "STATS$SHARED_POOL_ADVICE"         46 rows imported
    . . importing table               "STATS$SNAPSHOT"          2 rows imported
    . . importing table                "STATS$SQLTEXT"       1589 rows imported
    . . importing table               "STATS$SQL_PLAN"       1277 rows imported
    . . importing table         "STATS$SQL_PLAN_USAGE"        111 rows imported
    . . importing table         "STATS$SQL_STATISTICS"          2 rows imported
    . . importing table            "STATS$SQL_SUMMARY"        251 rows imported
    . . importing table "STATS$SQL_WORKAREA_HISTOGRAM"         18 rows imported
    . . importing table    "STATS$STATSPACK_PARAMETER"          1 rows imported
    . . importing table      "STATS$STREAMS_APPLY_SUM"          0 rows imported
    . . importing table        "STATS$STREAMS_CAPTURE"          0 rows imported
    . . importing table    "STATS$STREAMS_POOL_ADVICE"         40 rows imported
    . . importing table                "STATS$SYSSTAT"       1276 rows imported
    . . importing table           "STATS$SYSTEM_EVENT"        156 rows imported
    . . importing table         "STATS$SYS_TIME_MODEL"         38 rows imported
    . . importing table             "STATS$TEMPSTATXS"          2 rows imported
    . . importing table                 "STATS$THREAD"          2 rows imported
    . . importing table    "STATS$TIME_MODEL_STATNAME"         19 rows imported
    . . importing table               "STATS$UNDOSTAT"         23 rows imported
    . . importing table               "STATS$WAITSTAT"         36 rows imported
    About to enable constraints...
    Import terminated successfully without warnings.
    11203ora-> 
    执行导入操作

    Purge snapshots

    • 方法一:(begin snap_id  end snap_id)
    • 方法二:(begin date & end date)
    • 方法三:(before date)
    • 方法四:(remain days)
    • 方法五:(sppurge.sql)

    如何导出perfstat schema信息?

    userid=perfstat/perfstat
    owner=perfstat
    DIRECT=y
    CONSISTENT=y
    file=/home/oracle/perfstat.dmp
    grants=y
    indexes=y
    
    ~
    ~
    "expperfstat.par" 7L, 112C                                                   7,1           All
    编辑导出脚本
    11203ora-> exp parfile=expperfstat.par 
    
    Export: Release 11.2.0.3.0 - Production on Tue Jul 30 10:02:13 2013
    
    Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
    
    
    Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    Export done in AL32UTF8 character set and AL16UTF16 NCHAR character set
    . exporting pre-schema procedural objects and actions
    . exporting foreign function library names for user PERFSTAT 
    . exporting PUBLIC type synonyms
    . exporting private type synonyms
    . exporting object type definitions for user PERFSTAT 
    About to export PERFSTAT's objects ...
    . exporting database links
    . exporting sequence numbers
    . exporting cluster definitions
    . about to export PERFSTAT's tables via Direct Path ...
    . . exporting table          STATS$BUFFERED_QUEUES          0 rows exported
    . . exporting table     STATS$BUFFERED_SUBSCRIBERS          0 rows exported
    . . exporting table   STATS$BUFFER_POOL_STATISTICS          2 rows exported
    . . exporting table          STATS$CR_BLOCK_SERVER          0 rows exported
    . . exporting table     STATS$CURRENT_BLOCK_SERVER          0 rows exported
    . . exporting table        STATS$DATABASE_INSTANCE          2 rows exported
    . . exporting table          STATS$DB_CACHE_ADVICE         40 rows exported
    . . exporting table                 STATS$DLM_MISC          0 rows exported
    . . exporting table   STATS$DYNAMIC_REMASTER_STATS          0 rows exported
    . . exporting table       STATS$ENQUEUE_STATISTICS        161 rows exported
    . . exporting table          STATS$EVENT_HISTOGRAM       1269 rows exported
    . . exporting table               STATS$FILESTATXS         22 rows exported
    . . exporting table           STATS$FILE_HISTOGRAM         86 rows exported
    . . exporting table               STATS$IDLE_EVENT        135 rows exported
    . . exporting table  STATS$INSTANCE_CACHE_TRANSFER          0 rows exported
    . . exporting table        STATS$INSTANCE_RECOVERY          2 rows exported
    . . exporting table       STATS$INTERCONNECT_PINGS          0 rows exported
    . . exporting table          STATS$IOSTAT_FUNCTION         28 rows exported
    . . exporting table     STATS$IOSTAT_FUNCTION_NAME         14 rows exported
    . . exporting table         STATS$JAVA_POOL_ADVICE         20 rows exported
    . . exporting table                    STATS$LATCH       1106 rows exported
    . . exporting table           STATS$LATCH_CHILDREN          0 rows exported
    . . exporting table     STATS$LATCH_MISSES_SUMMARY         64 rows exported
    . . exporting table             STATS$LATCH_PARENT          0 rows exported
    . . exporting table        STATS$LEVEL_DESCRIPTION          5 rows exported
    . . exporting table             STATS$LIBRARYCACHE         40 rows exported
    . . exporting table     STATS$MEMORY_DYNAMIC_COMPS         32 rows exported
    . . exporting table        STATS$MEMORY_RESIZE_OPS         16 rows exported
    . . exporting table     STATS$MEMORY_TARGET_ADVICE         12 rows exported
    . . exporting table              STATS$MUTEX_SLEEP          6 rows exported
    . . exporting table                   STATS$OSSTAT         44 rows exported
    . . exporting table               STATS$OSSTATNAME         22 rows exported
    . . exporting table                STATS$PARAMETER        714 rows exported
    . . exporting table                  STATS$PGASTAT         34 rows exported
    . . exporting table        STATS$PGA_TARGET_ADVICE         28 rows exported
    . . exporting table    STATS$PROCESS_MEMORY_ROLLUP        116 rows exported
    . . exporting table           STATS$PROCESS_ROLLUP         39 rows exported
    . . exporting table     STATS$PROPAGATION_RECEIVER          0 rows exported
    . . exporting table       STATS$PROPAGATION_SENDER          0 rows exported
    . . exporting table           STATS$RESOURCE_LIMIT          8 rows exported
    . . exporting table                 STATS$ROLLSTAT         22 rows exported
    . . exporting table         STATS$ROWCACHE_SUMMARY        114 rows exported
    . . exporting table                 STATS$RULE_SET          2 rows exported
    . . exporting table                 STATS$SEG_STAT         29 rows exported
    . . exporting table             STATS$SEG_STAT_OBJ         27 rows exported
    . . exporting table            STATS$SESSION_EVENT          0 rows exported
    . . exporting table                  STATS$SESSTAT          0 rows exported
    . . exporting table          STATS$SESS_TIME_MODEL          0 rows exported
    . . exporting table                      STATS$SGA          8 rows exported
    . . exporting table                  STATS$SGASTAT         55 rows exported
    . . exporting table        STATS$SGA_TARGET_ADVICE         12 rows exported
    . . exporting table       STATS$SHARED_POOL_ADVICE         46 rows exported
    . . exporting table                 STATS$SNAPSHOT          2 rows exported
    . . exporting table                  STATS$SQLTEXT       1589 rows exported
    . . exporting table                 STATS$SQL_PLAN       1277 rows exported
    . . exporting table           STATS$SQL_PLAN_USAGE        111 rows exported
    . . exporting table           STATS$SQL_STATISTICS          2 rows exported
    . . exporting table              STATS$SQL_SUMMARY        251 rows exported
    . . exporting table   STATS$SQL_WORKAREA_HISTOGRAM         18 rows exported
    . . exporting table      STATS$STATSPACK_PARAMETER          1 rows exported
    . . exporting table        STATS$STREAMS_APPLY_SUM          0 rows exported
    . . exporting table          STATS$STREAMS_CAPTURE          0 rows exported
    . . exporting table      STATS$STREAMS_POOL_ADVICE         40 rows exported
    . . exporting table                  STATS$SYSSTAT       1276 rows exported
    . . exporting table             STATS$SYSTEM_EVENT        156 rows exported
    . . exporting table           STATS$SYS_TIME_MODEL         38 rows exported
    . . exporting table               STATS$TEMPSTATXS          2 rows exported
    . . exporting table            STATS$TEMP_SQLSTATS
    . . exporting table                   STATS$THREAD          2 rows exported
    . . exporting table      STATS$TIME_MODEL_STATNAME         19 rows exported
    . . exporting table                 STATS$UNDOSTAT         23 rows exported
    . . exporting table                 STATS$WAITSTAT         36 rows exported
    . exporting synonyms
    . exporting views
    . exporting stored procedures
    . exporting operators
    . exporting referential integrity constraints
    . exporting triggers
    . exporting indextypes
    . exporting bitmap, functional and extensible indexes
    . exporting posttables actions
    . exporting materialized views
    . exporting snapshot logs
    . exporting job queues
    . exporting refresh groups and children
    . exporting dimensions
    . exporting post-schema procedural objects and actions
    . exporting statistics
    Export terminated successfully without warnings.
    11203ora-> 
    执行导出命令

    upgrade statspack version

    查看spdoc.txt文档. 

    随笔:

    oracle在执行查询的时候,其主要依据就是optimizer statistics 数据,所以适当的频率更新schema的optimizer statistics数据对于提高sql查询语句的性能是非常有帮助的.

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  • 原文地址:https://www.cnblogs.com/arcer/p/3222700.html
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