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  • PLSQL_批量压缩表Table Compress(案例)

    2015-04-01 Created By BaoXinjian

    一、摘要


    表空间迁移并压缩案例 

     

    二、案例


    Step1. 并发转移表空间

    set timing on;
    alter session set parallel_degree_limit=192;
    alter session enable parallel ddl;
    alter session enable parallel dml;
    alter table inv.mtl_material_transactions move partition plegacy tablespace large_journal_legacy compress for archive low;

    Step2. 并发重建主键

    set timing on;
    alter session set parallel_degree_limit=192;
    alter session enable parallel ddl;
    alter session enable parallel dml;
    alter table inv.mtl_material_transactions drop constraint inventory_item_pk cascade;
    drop index mtl.inventory_item_pk;
    create unique index mtl.inventory_item_pk on inv.mtl_material_transactions(inventory_item_id) tablespace mtl_large_index;
    alter table inv.mtl_material_transactions add constraint inventory_item_pk primary key inventory_item_id using index inv.inventory_item_pk;
    exit;

    Step3. 并发重建索引

    set timing on;
    alter session set parallel_degree_limit=192;
    alter session enable parallel ddl;
    alter session enable parallel dml;
    drop index inv.material_item_index01;
    create index inv.materil_item_index01 on inv.mtl_material_transaction(inventory_item_id) tablespace mtl_large_index;
    exit;

     

    Thanks and Regards

     

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  • 原文地址:https://www.cnblogs.com/eastsea/p/4384458.html
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