Error Pending Stats
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Types Constants Operational Notes Deprecated Subprograms Examples Summary of DBMS_STATS Subprograms Using DBMS_STATS This section contains topics which relate to using the tabname0 package. Overview
Gather Stats In Oracle 11g Example
Types Constants Operational Notes Deprecated Subprograms Examples Overview The Oracle RDBMS auto optimizer stats collection allows you to collect statistics of many different kinds as an aid to improving performance. This package is
Gather Schema Stats Oracle 11g Parallel
concerned with optimizer statistics only. Given that Oracle sets automatic statistics collection of this kind on by default, this package is intended for only specialized cases. The statistics auto optimizer stats collection 12c of interest to be viewed or modified can reside in the dictionary or in a table created in the user's schema for this purpose. You can also collect and manage user-defined statistics for tables and domain indexes using this package. For example, if the extension9 procedure is invoked on a column for which an association is defined, user-defined dbms_stats.gather_table_stats 12c statistics for that column are deleted in addition to deletion of the standard statistics. Only statistics stored in the dictionary have an impact on the cost-based optimizer. You can also use extension8 to gather statistics in parallel See Also: Oracle Database Performance Tuning Guide for more information about "Managing Optimizer Statistics". Types Types for the minimum and maximum values and histogram endpoints include: TYPE numarray IS VARRAY(256) OF NUMBER; TYPE datearray IS VARRAY(256) OF DATE; TYPE chararray IS VARRAY(256) OF VARCHAR2(4000); TYPE rawarray IS VARRAY(256) OF RAW(2000); TYPE fltarray IS VARRAY(256) OF BINARY_FLOAT; TYPE dblarray IS VARRAY(256) OF BINARY_DOUBLE; TYPE StatRec IS RECORD ( epc NUMBER, minval RAW(2000), maxval RAW(2000), bkvals NUMARRAY, novals NUMARRAY); Types for listing stale tables include: TYPE ObjectElem IS RECORD ( ownname VARCHAR2(30), -- owner objtype VARCHAR2(6), -- 'TABLE' or 'INDEX' objname VARCHAR2(30), -- table/index partname VARCHAR2(30), -- partition subpartname VARCHAR2(30)); -- subpartition type ObjectTab is TABLE of ObjectElem; Type for displaying statistics difference report: TYPE DiffRepElem IS RECORD ( report CLOB, -- stats difference report maxdiffpct num
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Oracle Table Statistics View
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Dbms_stats.get_prefs 12c
in Oracle Database 11g Release 1 Pending Statistics Extended Statistics Multi-Column (Column Group) Statistics Expression Statistics Enhanced Statistics Collection for Partitioned Objects AUTO_SAMPLE_SIZE Related articles. http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_stats.htm Extended Statistics Enhancements in Oracle Database 11g Release 2 Automatic Column Group Detection in Oracle Database 12c Release 1 (12.1) Cost-Based Optimizer (CBO) And Database Statistics Statistics Collection Enhancements in Oracle Database 12c Release 1 (12.1) Pending Statistics In previous database versions, new optimizer statistics were automatically published when https://oracle-base.com/articles/11g/statistics-collection-enhancements-11gr1 they were gathered. In 11g this is still the default action, but you now have the option of keeping the newly gathered statistics in a pending state until you choose to publish them. The DBMS_STATS.GET_PREFS function allows you to check the 'PUBLISH' attribute to see if statistics are automatically published. The default value of TRUE means they are automatically published, while FALSE indicates they are held in a pending state. SELECT DBMS_STATS.get_prefs('PUBLISH') FROM dual; DBMS_STATS.GET_PREFS('PUBLISH') ------------------------------------------- TRUE 1 row selected. SQL> The 'PUBLISH' attribute is reset using the DBMS_STATS.SET_TABLE_PREFS procedure. -- New statistics for SCOTT.EMP are kept in a pending state. EXEC DBMS_STATS.set_table_prefs('SCOTT', 'EMP', 'PUBLISH', 'false'); -- New statistics for SCOTT.EMP are published immediately. EXEC DBMS_STATS.set_table_prefs('SCOTT', 'EMP', 'PUBLISH', 'true'); Pending statistics are visible using the [DBA|ALL|USER]_TAB_PENDING_STATS and [DBA|ALL|USER]_IND_PENDING_STATS views. The DBMS_STATS package allows you to publish or delete pending statistics, as show below. -- Publish all p
/ MobilityWireless, LAN (WLAN)Troubleshoot and AlertsConfiguration Example and TechNotes Troubleshooting Why an AP Does Not Join a Controller Download Print Available Languages Download Options PDF (14.3 KB) View with Adobe Reader on a variety of devices http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/100731-ap-not-join-con.html Updated:May 02, 2012 Document ID:100731 Contents Introduction Prerequisites Requirements Components Used Conventions Background Information Troubleshooting Algorithm Example 1 Example 2 Example 3 Example 4 Example 5 Related Information Introduction This document provides information about the new show ap join stats commands in controller version 4.2.61.0 and demonstrates how to use them effectively. For more information, refer to Troubleshoot a Lightweight Access Point Not Joining a Wireless LAN Controller to effectively troubleshoot why oracle 11g an access point (AP) does not join a controller. Additional troubleshooting at the AP can be required if the AP does not send a join to the controller. This troubleshooting document applies to all the controller (WLC) versions from 4.2.61 to the latest version of 7.2.103. Several example outputs of different errors that occur on the controller follow the Background Information and Troubleshooting Algorithm sections. Prerequisites Requirements There are no specific requirements for auto optimizer stats this document. Components Used This document is not restricted to specific software and hardware versions. The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to Cisco Technical Tips Conventions for more information on document conventions. Background Information In controller version 4.2.61.0, the controller now keeps track of all APs that send it a discovery request and which APs it sends a discovery reply to. It also tracks APs that try to join the controller and whether or not they are successful. There are 2 new CLI (console or SSH) commands on the controller to help troubleshoot why an AP will fail to join the controller: Show ap join stats summary [all | AP_Mac_Address] Show ap join stats detailed AP_Mac_Address Troubleshooting Algorithm Use the show ap join stats summary all command to see which APs do not join the controller. The AP is inserted into the show ap join stats list as soon as the controller receives a discovery request. Note:The controller never removes the AP from the show ap join stats list until the controller is rebooted. In so
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