Oracle

1. OverviewFlashback technology is part of the powerful backup mechanism of ORALCE, which provides fast and small-loss recovery when a logical error occurs in the database (most flashback functions can be done online in the database). It is

LetOracleFaster --Bowen viewpoint lecture hall34Phase activities completed successfully The performance problem is a database technology field that has attracted increasing attention from DBAs over the past few years. The latest best-selling

Java time processing: Addition/subtraction, // Current time Date curdate = new date (); // The current time is 6 minutes ago Date presixmin = new date (curdate. gettime ()-integer. valueof (codeconstants. sms_overtime) * 60*1000 );   The

/*** Separate Java Program Connect to the Oracle database * Author: javaalpha * Date: 12:02:44 */import Java. SQL. *; public class test {public static void main (string [] ARGs) {string driver = "oracle. JDBC. driver. oracledriver "; string url ="

Common Summary of RMAN.1 backupRMAN target sys/sys @ demo nocataglogRMAN> run {Configure Channel Device Type disk maxpiecesize 400 m;Configure device type disk parallelism 3; (3 channels)Backup database format = 'd: \ XXXX \ XXX \ % d _ % S _ % P.

(There is an "Enterprise Manager Console" in the Windows Oracle Start Menu, which allows you to directly edit tablespaces and files) Alter Database Open an existing database, and/or modify associated files. Syntax: ALTER DATABASE database_name

Some netizens recently mentioned why the historical execution plan of SQL statements cannot be viewed in dba_hist_ SQL _plan. This problem is due to the fact that the threshold value set by Oracle does not capture all SQL statements by default,

Generally, in the Oracle RAC environment, V $ view can query information about the instance you are connected to, while GV $ view contains information about all instances. However, in the RAC environment, when we query the V $ log view, it is common

This article is transferred from:Http://blog.csdn.net/tianlesoftware/article/details/7084700. table Space Description In Oracle9i, if you do not use the default tablespace clause, all users will use the system tablespace as their default tablespace.

Modify the Tomcat port to open the server under Tomcat directory --> Tomcat 5.5 --> conf -->. XML file. Modify the port. export Publish ------------------------------------------------------------------------------------------------ 2. Modify the

  1. Table data replication between different usersFor two users A and B in a database, if you need to copy the old data in Table A to the new data in Table B, use a user with sufficient permissions to log on to sqlplus:Insert into B. New (select *

Question: Answer: give two examples to understand Example 1: SQL> select phone_number, 2 REGEXP_REPLACE(t.phone_number,'([[:digit:]]{3})\.([[:digit:]]{3})\.([[:digit:]]{4})', 3 '(\1)\2-\3') "PHONE_NUMBER" 4 from employees t; PHONE_NUMBER

Differences between Oracle and MySQL official JDBC     Description MySQL Oracle JDBC driver   Driver:Http://dev.mysql.com/downloads/connector/j/Driver type: type4All the latest versions claim to support

Oracle Spatial Space Data Reading operations based on oo4o, FME, and ODP. Net in. net Using system;Using system. Collections. Generic;Using system. text;Using system. reflection;Using safe. fmeobjects;Using system. Collections. Specialized;Using

OracleSecurity tips by Burleson Consulting This is an excerpt from the bestselling book "Oracle Privacy Security Auditing", a complete Oracle Security Reference with working Oracle Security scripts.  Useful scripts for Auditing To see what

SQL code -- Create Table student (ID int, name varchar (20), age int, sex varchar (2), birth date); insert into student values (1, 'zhang san ', 23, 'male', sysdate); insert into student values (2, 'Li si', 24, 'male', sysdate); insert into student

First, create a table named chineseword (simpleword, traditionword) that stores simplified and traditional Chinese characters) Then, write a stored procedure to insert data into the chineseword table. Create or replace procedure insertchineseword

Document directory Use bulk collect to reduce loop processing overhead Oracle batch binding forall bulk collect Use bulk collect to improve Oracle query efficiency Bulk collect can be used to reduce the overhead of loop processing. Bulk collect

Http://www2.ccw.com.cn/02/0224/c/0224c05_1.asp Character Set problems during Oracle Data dumping Wang quanhai, Northeastern University, Qinhuangdao Branch As an Oracle database user, there is no stranger to the export and import commands,

I read various blogs about static registration and dynamic registration more than N times. I found that I did not take it seriously every time. I know that listener. ora is very important, and the content in it has always been a ready-made