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  • Oracle: DBMS_STATS的分析表与备份恢复的一点SQL

     begin
     dbms_stats.gather_table_stats(ownname => USER, tabname => 'TMS_ROUTE_HEADER');
     end;

    BEGIN
    DBMS_STATS.set_table_stats (ownname => USER,
    tabname => 'TMS_ROUTE_HEADER',
    numrows => 100,
    numblks =>5
    );
    END;

    begin
    dbms_stats.delete_table_stats(ownname => USER,
    tabname => 'TMS_ROUTE_HEADER');
    end;

    select count(1) from tms_route_header rh, tms_route_stop rs
    where rs.truck_route_instance_id=rh.truck_route_instance_id;
     
    begin
      dbms_stats.create_stat_table(ownname => 'TMS',stattab => 'STAT_TABLE');
    end;
     
    begin
     dbms_stats.import_table_stats(ownname => 'TMS',tabname => 'TMS_ROUTE_HEADER',stattab => 'STAT_TABLE');
    end;

    begin
    dbms_stats.export_table_stats(ownname => 'TMS',tabname => 'TMS_ROUTE_HEADER', stattab => 'STAT_TABLE');
    end;


    select * from STAT_TABLE

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  • 原文地址:https://www.cnblogs.com/tracy/p/2126264.html
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