rename file

Grantselectanydictionarytoscott; createtablet1asselect * fromemp; insertintot1select * fromt1; -- query the user to view scot Grant select any dictionary to scott; create table t1 as select * from emp; insert into t1 select * from t1; -- query the

1. Copy the cold backup data files, log files, and control files to the target folder. 2. Create a pfile of init: $ ORACLE_SID.ora. 1. Copy the cold backup data files, log files, and control files to the target folder. 2. Create a pfile of init: $

Just work with a Taiwan RMBP, although the touchpad is really good, but the mouse support is too poor to use the mouse, and some functions with the touchpad is not very convenientSo the use of shortcut keys is imperative, reference to Apple official

The following is a list of Linux system calls that contain most of the common system calls and functions derived from system calls. This is probably the only list of Linux system calls you can see on the Internet, even if it's a simple alphabetical

Configuration Methods for coexistence of multiple versions of Python If the python 2 and python 3 environments are installed on the same PC at the same time, an error will occur when the python command is executed, and the operating system will find

Five excellent PHP code reconstruction tools and five php code reconstruction tools are recommended. In software engineering, refactoring Code usually refers to modifying the source code without changing the external behavior of the Code. Software

Obtain xx data files from the ftp host. Tens of millions is just a concept. It indicates that the data volume is equal to or greater than ten millions.This article does not involve distributed collection and storage. data is processed on a machine.

This article introduces how to make some common security configurations in php. ini. For more information, see. (1) Enable the php security mode The security mode of php is a very important embedded security mechanism that can control some functions

There is a common mode and Security Mode in php. Now most data users directly use the php common mode of the application, because many functions are limited after the security mode is configured, the following describes how to configure the security

How to export downloaded music files from ios music box (using Java programming)How to export downloaded music files from ios music boxThe content involved in this article is used for technical learning. Do not use it for improper purposes.

Here, I will share with you some examples and experiences of preventing SQL injection attacks summarized by the webmaster. I hope this tutorial will help you. 1. Configure on the server Security, PHP code writing is one aspect, and PHP configuration

Copy codeThe Code is as follows:# OS ModuleOS. sep can replace the path separator specified by the operating system. '\' In windows '\\'The OS. name string indicates the platform you are using. For example, for Windows, it is 'nt ', and for

This blog post mainly introduces Java file programming, mainly including the I/O from the JDK to read and write data from the file, byte stream read and write files, the way the character stream read and write files, how to use the file class to

Approximate requirements:Each order has a number of file attachments, in the download of the time you want to the current order files automatically packaged into a compressed package downloadDetails Required: Current order number _ Month Day + time.

How to reconfigure the redo log location 1. shut down database shutdown2. use the OS command to copy redo log files to the new location mv/u01/app/oracle/oradata/MYNEWDB/onlinelog/o1_mf_1_89y70t1b _. log/home/o1_mf_000089y70t1b_test.log3. start the

Change the location of data files in multiple tablespaces 1. the database is in the mounted state: Optionally, the database does not have to be closed, but the datafiles (or tempfiles) must be offline. 2. use the OS command copy and rename the

Author: skateTime: 2010/09/07 Resetlogs mechanism of oracle I think everyone is familiar with the alter database open resetlogs command. Have you ever wondered why this resetlogs option should be used? When will it be used?What is its mechanism?

Common linux system functions-general Linux technology-Linux programming and kernel information. The following is a detailed description. I. Process Control: Fork creates a new process Clone creates sub-processes based on specified

In Oracle databases, there is a log file called redo log file, which is commonly known as redolog. There are two types of redolog: Online redo log and archive log. In Oracle databases, there is a log file called redo log file, which is commonly

Java Learning at a glance--file class file processing File Class (Java.io.File) constructor function: File (String Path) File (String parent,string Child) File (file parent,string child) To create a file: Boolean