Oracle 大表复制方案存储过程实现

procedure makePayPlayIraBakNew is      v_num number;  begin    vanceinfo.gmac_log_pro.setloginfo('makePayPlayIraBakNew',                                      '1114',                                      '9',                                      sysdate,                                      'makePayPlayIraBakNew执行开始');    v_num := 0;    select count(1)      into v_num      from user_tables     where table_name = 'GMAC_PAYPLAY_IRA_HIS';  if(v_num > 0) then    execute immediate 'DROP TABLE  GMAC_PAYPLAY_IRA_HIS';  end if;        execute immediate 'CREATE TABLE GMAC_PAYPLAY_IRA_HIS AS SELECT * FROM GMAC_PAYPLAY';      vanceinfo.gmac_log_pro.setloginfo('makePayPlayIraBakNew',                                      '1114',                                      '0',                                      sysdate,                                      'makePayPlayIraBakNew执行成功结束');     exception    when others then      vanceinfo.gmac_log_pro.setloginfo('makePayPlayIraBakNew',                                        '1114',                                        '9',                                        sysdate,                                        substr(sqlerrm, 1, 200));                                     end makePayPlayIraBakNew;

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