billion dollar mistake

side of the D-plate. It's almost 1, and 2 minutes will show up.650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M01/07/94/wKiom1nLwJii5CRKAAGcU0aInPE656.png-wh_500x0-wm_ 3-wmp_4-s_1021058138.png "title=" s}dqt66or}i8[rcglj6_) 7s.png "alt=" wkiom1nlwjii5crkaagcu0ainpe656.png-wh_50 "/ >Find the "test" folder, found that there is 123.txt, this file, right click, Restore/Copy, select the path you want to save. Can restore my file 123.txt, for the accidental deletion of the file with this met

By mistake, I discovered the drawbacks of using iframe. Personal opinions I often hear that I do not recommend using the iframe framework, but I have used it again and again. Maybe it is limited in capabilities and I have never been concerned about the disadvantages. I am using the iframe framework, and only the big background is defined on the home page. Each page does not define the background separately, When you right-click a browser and choos

Although I have been involved in the Internet for many years, I am still a cainiao in the computer security field. I am a newbie and have a series of technical specializations. For example, the account is inexplicably stolen. It is said that hackers intrude into the account and it is difficult to do so (~ __~) /. Sometimes there are more things in the computer. To be honest, I don't really care about anything. What I'm afraid of is that these strangers and other files in the computer are attrac

Guess what the output of the following program is?usingSystem;usingSystem.Windows.Forms;namespaceSkyiv.Ben.Test{SealedclassMaintest{StaticvoidMain (){Label Lblout=NewLabel ();Lblout.text=NULL;Console.WriteLine ("{0} {1}", Lblout.text==NULL, Lblout.text=="");}}}The output of the program is: false true instead of: true false. That is, you assign a null value to Lblout.text, and the value of Lblout.text is "" (that is, string. Empty), instead of NULL. Lblout.text is a property, in fact, by C # synt

Using Unityengine;Using Unityeditor;Using System.Collections;public class TileCreator:UnityEditor.EditorWindow {[MenuItem ("Tools/tilecreator")]static void Create () {Editorwindow.getwindow (typeof (Tilecreator));}int polysize,xcount,zcount;String Tilename;void Creatmesh (){}void Ongui (){Guilayout.label ("Tile Creator", Editorstyles.boldlabel);Tilename = Editorguilayout.textfield ("Tile Object Name", tilename);Polysize = Editorguilayout.intslider ("Tile size", polysize,1,20);Xcount = Editorguil

One, mount the disk partition as read-onlyThis step is important and you should mount the disk as read-only as soon as possible after deleting the file by mistake. The sooner you do it, the greater the chance of success in recovery.1. See which partition the deleted files are in[Root@localhost ~]# Mount/dev/mapper/volgroup-lv_root on/type ext4 (rw)/dev/mapper/volgroup-lv_home on/home type EXT4 (rw)2. Try to re-mount the corresponding directory as read

I. Applicable background There is a database named test, whose data is in the device test, and the log is in the device test_log; The test database has a table tab1 with 5 Records (1-5 ); Complete database backup: dump database test to '/opt/data/test. dump '; Then, five records (6-10) are inserted into the tab1 table. The time is: 17:30:09; Then, record 1 in Table tab1 is deleted. At this time, table tab1 has nine records (2-10 ); At this time, we found that record 1 in the previous step should

For the restoration of accidentally deleted tablespaces, this article discusses the restoration of database-based time points and the recovery of tablespace-based time points respectively. 1. Restore accidentally deleted tablespaces through database-based time points 1. Notes A database-based recovery time point will roll back the entire database. B deletes the tablespace by mistake. When the database has a full-database backup that can be used for re

Today I found that I made a mistake in the project. This often happens on the same page. After the customer clicks the button, ProgramDetermine whether this record exists. If yes, perform update; otherwise, insert. At that time, in order to save time, a viewstate is saved in the page to record whether the existence of the record exists, and the user thinks that the database is not checked once. However, you should jump out of this page after you forg

represent the number of allocated elements, but they do not have this identifier for a new object. But what if I modify this value? In the actual test, the value in the memory is directly modified before the delete operation, and the result shows how many times the Destructor will be executed. I believe that you can already think of the release situation, because the Heap Structure of the release version is different from that of the debug version. In actual debugging, there are no four FD case

How can I recover the accidental deletion of Oracle Database Data ?, Delete oracle by mistake When studying the database, we only consider how to use database command statements with a learning attitude. We did not think about how to use database command statements. If a misoperation occurs at work, it may lead to irreparable losses. Today, we will take the oracle database as an example to describe how to delete table data. (Full database backup and

The ORACLE tutorial is: how to accidentally delete the tablespace data file for Oracle7.X rollback. ---- 1. Introduction: ---- The rollback segment is a part of the database, which records the database change information. Use this information to achieve database read consistency and restoration. If the rollback segment fails, the database cannot be started normally, resulting in database paralysis and the user cannot read or write data. If the rollback segment can be eliminated, the actual data

Trace records-delete the root user by mistake in the Linux Mysql database, mysqlroot Reprint please explain the source: http://blog.csdn.net/cywosp/article/details/42145779 In Linux, sometimes Mysql is installed without a root user, or the root account is accidentally deleted from the mysql. user table, which causes many permissions to be uncontrollable. The solution is to recreate the root user and grant all permissions as follows:1. Modify the/etc/

the command to test whether the disk is available and check whether the disk can be used normally. [Root @ localhost sq808sq] # dd if =/dev/zero of = test bs = 64 k count = 4 k oflag = dsync Recorded 4096 + 0 reads Records 4096 + 0 writes 268435456 bytes (268 MB) Copied, 105.086 seconds, 2.6 MB/second At this point, the restoration and reconstruction of the/dev/zero file has been completed (this file cannot be directly copied and used from the system disk or other systems after the system speci

= 'y', Lock_tables_priv = 'y', execute_priv = 'y ', repl_slave_priv = 'y', repl_client_priv = 'y', create_view_priv = 'y', show_view_priv = 'y', create_routine_priv = 'y', region = 'y '; (2) If you forget the password of the root user, use the following statement to change the root password: Update user set Password = Password ('000000') where User = 'root '; Mysql deletes the root user by mistake 1. Stop the mysqld process first. # Killall mysqld e

As a multi-user, multi-task operating system, once the files in Linux are deleted, it is difficult to restore. Although the Delete command only marks the deletion in the file node and does not actually clear the file content, other users and some processes with disk write operations will soon overwrite the data. However, you can recover a Linux instance that is used by a single machine in your home, or rectify the file by mistake. Recovery steps As a

formatted FileIf we want to restore the formatted file, we never dared to think about it before. Now we don't have to worry about it because we have EasyRecovery.On the software interface, click "FormatRecovery". Its function is to restore files from a formatted partition.Select the formatted partition, and then select the format of the file system before formatting the partition. The format is "FAT32", and click "Next ".The software began Scanning files.After scanning, select a file to be rest

Delete the/var/lib/dpkg/info folder of dpkg by mistake. when installing the software today, the following error occurs: E: Sub-process/usr/bin/dpkgreturnedanerrorcode (1) the online query solution was misled by the Internet. I accidentally deleted the dpkg info... the following error occurs when the/var/lib/dpkg/info folder of dpkg is accidentally deleted: sub-process/usr/bin/dpkg returned an error code (1) Online Query solution, misled by the Interne

When you are working, you make stupid mistakes. Keep reminding yourself at any time on your podcast.Variable declaration elevation for a function:function items () {Console.log (' a ')} Such functions are declared in such a way that the whole function is lifted up and the function can be called before the function declaration.var items = function () {alert (1)} This is the way that functions are declared, and variable declaration promotion will elevate the items variable name up to the function

tutorialspoint.com processing JSONThe Central Repository PluginMaven Project Pop.xml Download* Mistakes in the project but it's the right solution: Right-click the project Properties--project Facets--java to 1.8 (same as JDK version)In the markers, delete the wrong, recompile. Build automatically before the default tick, remove the tick. Recompile, clean*maven Download package: Java EE tools--update ERA Libraries Maven Download library: Run as--maven clean--maven InstallADD Library Jre-system Li