2026-03-12 20:23:15
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240
vg/stats_commands.sql
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240
vg/stats_commands.sql
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-- AWR Table partitions with STALE/MISSING stats
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select STALE_STATS, last_analyzed,
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'exec dbms_stats.gather_table_stats(''' || owner || ''',''' || table_name || ''',partname=>''' || partition_name|| ''',GRANULARITY=>''PARTITION'',DEGREE=>16,CASCADE =>TRUE);'
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from DBA_TAB_STATISTICS
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where owner = 'SYS'
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and table_name like 'WRH$%'
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and (STALE_STATS = 'YES' OR last_analyzed is null)
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and partition_name is not null
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ORDER BY owner, table_name, partition_name
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;
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-- AWR Table with STALE/MISSING stats
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select STALE_STATS, last_analyzed,
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'exec dbms_stats.gather_table_stats(''' || owner || ''',''' || table_name || ''',DEGREE=>16,CASCADE =>TRUE);'
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from DBA_TAB_STATISTICS
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where owner = 'SYS'
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and table_name like 'WRH$%'
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and (STALE_STATS = 'YES' OR last_analyzed is null)
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and partition_name is null
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order by num_rows asc
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;
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-- Gather Fixed Object Stats ( Dynamic performance tables, eg. X$ table which are referenced in GV$ views)
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BEGIN
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dbms_stats.gather_fixed_objects_stats( no_invalidate => dbms_stats.auto_invalidate);
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END;
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/
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-- Gather dictionary stats
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BEGIN
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dbms_stats.gather_dictionary_stats(estimate_percent => dbms_stats.auto_sample_size
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, block_sample => false
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, method_opt => 'FOR ALL COLUMNS SIZE AUTO'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER EMPTY'
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, no_invalidate => dbms_stats.auto_invalidate
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);
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END;
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/
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BEGIN
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dbms_stats.gather_dictionary_stats(comp_id => -- select comp_id from dba_registry order by comp_id;
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, estimate_percent => dbms_stats.auto_sample_size
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, block_sample => false
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, method_opt => 'FOR ALL COLUMNS SIZE AUTO'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER EMPTY'
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, no_invalidate => dbms_stats.auto_invalidate
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);
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END;
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/
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BEGIN
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dbms_stats.gather_database_stats(estimate_percent => dbms_stats.auto_sample_size
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, block_sample => false
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, method_opt => 'FOR ALL COLUMNS SIZE 1'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER EMPTY'
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, gather_sys => TRUE
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, no_invalidate => dbms_stats.auto_invalidate
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);
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dbms_stats.gather_database_stats(estimate_percent => dbms_stats.auto_sample_size
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, block_sample => false
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, method_opt => 'FOR ALL COLUMNS SIZE 1'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER STALE'
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, gather_sys => TRUE
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, no_invalidate => dbms_stats.auto_invalidate
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);
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END;
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/
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BEGIN
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dbms_stats.gather_schema_stats(ownname => 'MUREX_MX_OWNER'
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, block_sample => false
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, estimate_percent => dbms_stats.auto_sample_size
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, method_opt => 'FOR ALL COLUMNS SIZE 1'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER EMPTY'
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, no_invalidate => dbms_stats.auto_invalidate
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, force => false
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);
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dbms_stats.gather_schema_stats(ownname => 'MUREX_MX_OWNER'
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, block_sample => false
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, estimate_percent => dbms_stats.auto_sample_size
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, method_opt => 'FOR ALL COLUMNS SIZE 1'
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, degree => dbms_stats.auto_degree
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, granularity => 'AUTO'
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, cascade => dbms_stats.auto_cascade
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, options => 'GATHER STALE'
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, no_invalidate => dbms_stats.auto_invalidate
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, force => false
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);
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END;
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/
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--****************************
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-- Gather Stale Table stats
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--****************************
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set serveroutput on size unlimited
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BEGIN
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FOR i in (
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select owner, table_name
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, 'BEGIN dbms_stats.gather_table_stats(force=>false'
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|| ',ownname=>''' || owner || ''''
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|| ',tabname=>''' || table_name || ''''
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|| NVL2(partition_name,',partname=>''' || partition_name || '''' ,'')
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|| ',degree=>8'
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|| ',granularity =>''PARTITION'''
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|| ',no_invalidate => dbms_stats.auto_invalidate'
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|| '); END;' sqltext
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from dba_tab_statistics s
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where 1=1
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and owner LIKE 'TRAF_%'
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and STALE_STATS = 'YES'
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and STATTYPE_LOCKED IS NULL
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)
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LOOP
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dbms_output.put_line(i.sqltext);
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execute immediate i.sqltext;
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END LOOP;
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END;
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/
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--****************************
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-- Gather Stale Index stats
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--****************************
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set serveroutput on size unlimited
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BEGIN
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FOR i in (
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select owner, index_name, table_owner, table_name, partition_name
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, 'BEGIN dbms_stats.gather_index_stats(force=>false'
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|| ',ownname=>''' || owner || ''''
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|| ',indname=>''' || index_name || ''''
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|| NVL2(partition_name,',partname=>''' || partition_name || '''' ,'')
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|| ',degree=>8'
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|| ',granularity =>''PARTITION'''
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|| ',no_invalidate => dbms_stats.auto_invalidate'
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|| '); END;' sqltext
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from dba_ind_statistics i
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where 1=1
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and owner LIKE 'TRAF_%'
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and STALE_STATS = 'YES'
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and STATTYPE_LOCKED IS NULL
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)
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LOOP
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dbms_output.put_line(i.sqltext);
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execute immediate i.sqltext;
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END LOOP;
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END;
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/
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exec DBMS_STATS.GATHER_DATABASE_STATS( METHOD_OPT => 'FOR ALL COLUMNS SIZE 1' , ESTIMATE_PERCENT => 5, DEGREE => 16, OPTIONS => 'GATHER EMPTY' , CASCADE => TRUE );
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exec DBMS_STATS.GATHER_SCHEMA_STATS( ownname => 'schemaname', METHOD_OPT => 'FOR ALL COLUMNS SIZE 1' , ESTIMATE_PERCENT => 5, DEGREE => 16 , OPTIONS => 'GATHER EMPTY' , CASCADE => TRUE );
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exec DBMS_STATS.GATHER_TABLE_STATS(ownname => 'HISTORY_OWN', tabname => 'PROVIDER_PRICE' , partname => 'PROVIDER_PRICE_2012_01', METHOD_OPT => 'FOR ALL COLUMNS SIZE 1' , ESTIMATE_PERCENT => 5 , DEGREE => 8 , CASCADE => TRUE );
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exec DBMS_STATS.GATHER_INDEX_STATS(ownname => 'PM_OWN', indname => 'PMA_A_IDX1' , partname => 'PMA_A_0117_2013', ESTIMATE_PERCENT => 5 , DEGREE => 8 );
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--****************************
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-- List objects without stats
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--****************************
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set serveroutput on
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DECLARE
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objlist DBMS_STATS.OBJECTTAB ;
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BEGIN
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DBMS_STATS.GATHER_DATABASE_STATS( METHOD_OPT => 'FOR ALL COLUMNS SIZE 1' , ESTIMATE_PERCENT => 5, DEGREE => 16, OPTIONS => 'LIST EMPTY' , objlist => objlist, CASCADE => TRUE );
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for i in 1 .. objlist.COUNT
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LOOP
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dbms_output.put_line (objlist(i).objname);
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END LOOP;
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END;
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/
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--****************************
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-- Incremental Stats
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--****************************
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-- Enable
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exec dbms_stats.set_database_prefs( pname => 'INCREMENTAL' , pvalue = 'TRUE', add_sys => 'TRUE');
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exec dbms_stats.set_schema_prefs( ownname => 'schemaname', pname => 'INCREMENTAL' , pvalue => 'TRUE');
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exec dbms_stats.set_table_prefs( ownname => 'schemaname', tabname => 'tablename', pname => 'INCREMENTAL' , pvalue => 'TRUE');
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-- Disable
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exec dbms_stats.set_database_prefs( pname => 'INCREMENTAL' , pvalue = 'FALSE', add_sys => 'TRUE');
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exec dbms_stats.set_schema_prefs( ownname => 'schemaname', pname => 'INCREMENTAL' , pvalue => 'FALSE');
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exec dbms_stats.set_table_prefs( ownname => 'schemaname', tabname => 'tablename', pname => 'INCREMENTAL' , pvalue => 'FALSE');
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-- Disable Table Level
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BEGIN
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FOR i in (select * from dba_tab_stat_prefs where preference_name = 'INCREMENTAL' and preference_value = 'TRUE')
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LOOP
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dbms_stats.set_table_prefs( ownname => i.owner, tabname => i.table_name, pname => 'INCREMENTAL' , pvalue => 'FALSE');
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END LOOP;
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END;
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/
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--****************************
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-- Lock Stats
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--****************************
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-- Lock table stats to skip daily gather stats
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BEGIN
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dbms_stats.lock_table_stats('PM_OWN', 'SEC_RISK_MEASURES_HIST');
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END ;
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/
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-- Unlock table stats to include daily gather stats
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BEGIN
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dbms_stats.unlock_table_stats('PM_OWN', 'SEC_RISK_MEASURES_HIST');
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END ;
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/
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-- How to find out tables with locked stats
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SELECT DISTINCT OWNER, TABLE_NAME, STATTYPE_LOCKED --, S.LAST_ANALYZED
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FROM DBA_TAB_STATISTICS S
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WHERE STATTYPE_LOCKED IS NOT NULL
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AND OWNER NOT IN ('SYS','SYSTEM','SYSMAN','WMSYS','SQLTXPLAIN')
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ORDER BY OWNER, TABLE_NAME ;
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