analyze table abc compute statistics; analyze table abc estimate statistics sample 20 percent; analyze table tablename compute statistics for all indexes; ---analyze table compute statistics = analyze table compute statistics for table for all indexes for all columns; ---直方图 exec dbms_stats.gathe...
V_SQL1 := 'INSERT INTO ANALYZE_LOG (USER_NAME,ERROR_TEXT,TABLE_NAME) VALUES (''' || OWNER_NAME || ''',''ANALYZE END'',''ALL'')'; EXECUTE IMMEDIATE V_SQL1; commit; --1.2 delete tmptbstatitics and lock statistics BEGIN for x in (select a.table_name, a.last_analyzed, b.st...
If only a few tables require to have their statistics gathered, use the corresponding concurrent program to gather stats by table, or execute equivalent FND_STATS procedure from SQL*Plus: SQL> exec fnd_stats.gather_table_stats('MRP','MRP_FORECAST_DATES'); Where 'MRP' is the schema owner, ...
SQL> exec fnd_stats.gather_schema_statistics('APPLSYS'); Where 'APPLSYS' is the module (schema) that requires new statistics. If only a few tables require to have their statistics gathered, use the corresponding concurrent program to gather stats by table, or execute equivalent FND_STATS proced...
对于外部表,统计不能通过GATHER_DATABASE_STATS,GATHER_SCHEMA_STATS以及自动统计收集收集。因此需要使用GATHER_TABLE_STATS在单个表上收集统计,并且在外部表上不支持取样,ESTIMATE_PERCENT应该被显示设置为NULL。 如果STATISTICS_LEVEL设置为BASIC禁用了监控特征,自动统计收集将不会检测过期的统计,此时需要手工收集。
Granularity of statistics to collect (only pertinent if the table is partitioned). 'ALL' - Gathers all (subpartition, partition, and global) statistics 'AUTO'- Determines the granularity based on the partitioning type. This is the default value. ...
DBA_TABLES describes all relational tables in the database.USER_TABLES describes the relational tables owned by the current user. This view does not display the OWNER column.Note:Columns marked with an asterisk (*) are populated only if you collect statistics on the table with the ...
Prior to EBR, this requirement would force testers to run on a duplicate copy of a potentially large database, and perform their testing outside of a real world production scenario. With EBR, you can create a new version of a table with a different data structure that resides in the ...
■Identifymigratedandchainedrowsofatableorcluster. Note:Forthecollectionofmoststatistics,usetheDBMS_STATS package,whichletsyoucollectstatisticsinparallel,collectglobal statisticsforpartitionedobjects,andfinetuneyourstatistics collectioninotherways.SeeOracleDatabasePL/SQLPackagesand TypesReferenceformoreinformationonthe...
Connection Securityblade >Allow access to Azure services>ON Connection Securityblade >SSL Settings>Enforce SSL Connection>DISABLED Recommendations To improve the performance of the assessment or export operations in the Oracle server, collect statistics: ...