oracle中导出统计信息到其他表的过程
exec dbms_stats.create_stat_table('&OWNER','MY_STATS_TAB');
exec dbms_stats.export_table_stats('&OWNER','&SOURCE_TABNAME',NULL,'MY_STATS_TAB');
exec dbms_stats.import_table_stats('&OWNER','&TARGET_TABNAME', null, 'MY_STATS_TAB');
检验:
select table_name, num_rows from dba_tables where table_name in ('&SOURCE_TABNAME' ,'&TARGET_TABNAME' );
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