copys or copies

will appear, which is the backup data.Export: 1. the entire database (the DBA permission is required); 2. users (including tables, views, and others); 3. tables (only tables are included, and views are not exported ); (2) ImportCreate user ly identified by PW default tablespace users quota 10 m on users;Create New User Username: ly password: pw default tablespace for this space, the quota is 10 mGrant connect, resource, DBA to ly;Grant the ly permission (1. connection; 2. Resource; 3. DBA permi

Shadow Copies (Shadow copies) are not features that are available in Windows Server 2008. However, for server system platforms such as Windows Server 2008, the use of shadow copies is more significant. With the shadow copy feature, the administrator can create a copy of the backup on the specified volume, which we can consider as a time snapshot and restore the f

First, the introductionObject copy is the copying of an object's properties to another object that has the same class type. Copying objects in a program is common, primarily to reuse some or all of the object's data in a new context. There are three types of object copies in Java: Shallow copy (shallow copy), deep copy (Deep copy), deferred copy (Lazy copy). Second, shallow copy1, what is a shallow copyA shallow copy is a bitwise Copy object that cre

If An object ' s value can be modified, the object was said to be mutable. If The value cannot be Modified,the object is said to be immutable. mutable mutable types, such as List,set, custom types (equivalent to reference types in C #); Immutable immutable types, such as string,numbers (equivalent to value types in C #); I. References and copies (references and copies) When using the = assignment operat

You must have used the Windows XP System Restore function, but it can only return the original machine files, if there is a shared folder on the network, users accidentally delete or overwrite the folder, then Windows XP System Restore power to the secondary shared files can be powerless. This problem is solved with the introduction of the Windows Server 2003 operating system. This is the Volume Shadow Copy Service for Windows Server 2003. It can "back up" a shared folder on a network server, "B

Linux copies all files in the specified directory to another directoryCopy all files in the specified directory to another directoryThe copying of files and directories is often used. The commands for copying under Linux are CP.Assume that the replication source directory is dir1 and the destination directory is DIR2. How can I copy all the files under the Dir1 to Dir2?If the Dir2 directory does not exist, you can use it directlyCp-r Dir1 Dir2Can.If t

In the word2010 "print" time, our users can be based on their own needs to set the number of copies, for example, we need to print the "collate" or "print-per-page" are free to set up, the following to be together with you to refer to the specific operation steps: First, we open the word2010 window, and then open the file---command, as shown in the figure: When you open the word2010 Print window, adjust the number of

object.assign () deep copy is invalidated, so thatobject.assign () can only implement deep copies of one-dimensional objects 2. Via Json.parse (json.stringify (obj)) This method is also in the previous period of time friends asked me deep copy of the method when occasionally found, before it is useless, it is quite useful: var obj5 = {x: 1, y:2}, obj6 = JSON.parse(JSON.stringify(obj5));obj6.x = 7;console.log(obj5); //

drive letter and a colon, a folder name, a filename, and a combination of those. /? Display Help at the command prompt. Comments You can copy ASCII text files that use the file end character (ctrl+z) to indicate the end of the file. Use/A When a/A is available before the file list on the command line, it applies to all files that are listed until copy encounters/b. In this case,/b applies to/b in front of the file. When/A is immediately after the list of files on the command line, it applies t

Recently because of the busy work, plus the end of many projects, there is no time to write Bo, today a friend asked about the Windows 2003 shadow copies of the function, said that only a full disk restore, from itself, when we look at the disk properties of the time, this and Windows 2008 R2, Windows R2 different, in the Windows 2008 R2 we can restore the file directly in the disk properties, in fact, under Windows 2003 can also achieve file-level re

Problem:The directory structure is as follows:test/2001.01.01/2001.02.02/2001.03.02/2001.01.03/2001.02.04/2001.03.05/2001.01.04/2001.02.05/2001.03.07/2001.01.06/2001.02.06/2001.03.08/2001.01.12/2001.02.23/2001.03.09/2001.01.13/2001.02.26/2001.03.22/2001.01.24/2001.02.28/2001.03.24/Copy the same date in the test directory to the corresponding folder, such as 2001.01 ... Copy to 2001.01/,The code is as follows:CD ICESatC="' forfileinch`ls` Do#filelist [$c]=$file#c = 'Expr$c +1`D= 'ExprSUBSTR $file

-->>list list (tuple)List-->>tuple Tuple (list)List--->>> string "". Join () methodString--->>> list split cut0, "", None, [], {}, (), set ()----->>>> can be converted to falseTwo, set set set element is not repeat .. element must be (int, str, tuple,bool) Note : The elements in the set set must be hash , but the set body is not a hash the. Set is Variable . Set collection and deletion and modification:Increase:. Add () duplicate content is not updated.

Sometimes we need to overwrite a folder to our working directory, but need to automatically back up the existing files, one to go back to the backup is too troublesome, all the backup is not necessary. Shell scripts can do a good job of doing this. Original link http://back.zhizhi123.com/?p=85#!/bin/SHUpload_dir=/alidata/www/SH/useful-shell-script/upload/Www_dir=/alidata/www/SH/useful-shell-script/www/backexist () {filelist=`ls$1` for file inch$filelist Doif[-F $1$file ] Thenif[-F $2$file ] Then

Reference: Http://vim.wikia.com/wiki/%22copy_all_to_clipboard%22_howtoVim has two buffers for the system's clipboard, they are: * (primary selection) and + (clipboard), where + is we can normally use ctrl-c and ctrl-v buffer, and to take out * Buffer content, click the middle of the mouse wheel can be.View buffer contents can be used with the command : Reg , above two buffers shown as "* and " +1.Normal ModeGG"*yggg"+yg2.Visual Mode (linewise) supplement: Press V to enter the modeGgog"+y3.Visual

Remote backup large capacity often there is the case that the file from remote backup is very large, it takes a long time, you want to exit SSH after the program can still continue to download in the background, can be established through the establishment of inter-server security information relationship and nohup way to solve.There are two servers: a server IP 192.168.3.100, b server IP 121.41.111.46.I. Establish a secure trust relationship certificate between servers1. Generate key pairing on

Hui, Xiao Hui, da Hui- alert (a.key2); Xiao Hui, Xiao HuiFrom the above, when modifying the key2 array of B, there is no new value for the Key2 array in the A parent object, that is, the child object does not affect the Key2 in parent object A. The storage mode is roughly as follows:The following is an example of a $.extend () deep copy.varObject1 ={apple:0, Banana: {weight: the, Price: -}, Cherry: the};varObject2 ={banana: {price: $}, Durian: -};//Deep Copy//object1--->{"apple": 0, "ban