標籤:先看oracle 10g的官方文檔:Database UtilitiesData Performance Improvements for Data Pump Export and ImportThe improved performance of the Data Pump Export and Import utilities is attributable to several factors, including the following:Multiple worker
標籤:oracle linux下開啟與關閉 1、啟動ORACLE監聽首先要登入使用者oracle:su - oracleoracle@localhost bin]$ lsnrctl --啟動oracle監聽命令 LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 29-OCT-2010 19:36:02 Copyright (c) 1991, 2005, Oracle. All rights reserved. Welcome
標籤:mysql connect by webseven 1.產生測試表與資料:create table mytest ( id int primary key, nodename varchar(20), pid int );insert into mytest (id,nodename,pid)values( 1 ,‘A‘,
標籤: 一.使用rownum做三層封裝查詢(常用方案)SELECT * FROM (SELECT A.*, ROWNUM RN FROM (SELECT * FROM TABLE_NAME) A WHERE ROWNUM <= 40)WHERE RN >= 21 其中最內層的查詢SELECT * FROM TABLE_NAME表示不進行翻頁的原始查詢語句。ROWNUM <= 40和RN >=
標籤:使用過程----刪除TRUNCATE TABLE mlog$_xxx_lxz_tmp;DROP MATERIALIZED VIEW LOG ON xxx_lxz_tmp;drop materialized view mv_xxx_lxz_tmp ----原表建立增量重新整理日誌CREATE MATERIALIZED VIEW LOG ON xxx_lxz_tmp WITH PRIMARY KEY INCLUDING NEW VALUES;----建立物化視圖CREATE