日期:2014-05-16  浏览次数:20450 次

从远程Oracle服务器上同步复制数据到本地备份库


  从远程Oracle服务器上同步复制数据到本地备份库

  create or replace PROCEDURE "SYNC_DATA_FROM_DBLINK_DB" AS

  BEGIN

  DECLARE

  CURSOR c_TabNames IS

  SELECT TNAME FROM TAB;

  v_TabName c_TabNames%ROWTYPE;

  v_SQL VARCHAR2(500);

  v_rowcount NUMBER;

  v_rc NUMBER:=0;

  v_tab NUMBER :=0;

  BEGIN

  Dbms_Output.put_line(to_char(SYSDATE,'yy-mm-dd hh24:mi:ss')||' 开始从远程的TEST2实例导入表.');

  FOR v_TabName in c_TabNames LOOP

  v_SQL := 'DELETE '||v_TabName.TNAME;

  EXECUTE IMMEDIATE v_sql;

  v_sql := 'INSERT INTO '|| v_tabname.TNAME||' SELECT * FROM '|| v_tabname.TNAME||'@TEST2';

  EXECUTE IMMEDIATE v_sql;

  COMMIT;

  v_SQL :='SELECT COUNT(*) FROM '|| v_tabname.TNAME;

  EXECUTE IMMEDIATE v_sql INTO v_rowcount;

  v_tab := v_tab +1;

  v_rc := v_rc + v_rowcount;

  END LOOP;

  Dbms_Output.put_line(to_char(SYSDATE,'yy-mm-dd hh24:mi:ss')||' 导入完成,共导入表'||to_char(v_tab)||'张,总记录数'||to_char(v_rc)||'条记录。');

  END;

  END SYNC_DATA_FROM_DBLINK_DB;