The code is very simple, the baby is directly on the code, please spray it!/***jdk1.5 after the lock, the creation of locks is not so cumbersome, call lock locked unlock unlocked, more object-oriented*/public class Locktest {public static void Main (string[] args) {Using the method of inner class to realize runnableNew Thread (New Runnable () {@Overridepublic void Run () {Call the Print method in the Out methodOut pOut = new Out ();Pout.print ("Hello"
Label:Oracle the issue of record is locked by another user when modifying records in a table
There is no commitwhen manipulating the table, which causes the table to be locked and the row lock can be unlocked as long as the following two lines of statements are executed.
Select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid;
-- View the SIDs and serial# of locked tables 2
Label:MySQL5.6 Online DDL Unlocked table (add field online)Answer you have a lookMySQL5.6 Online DDL does not lock the table, now I have a 100 million table, need to add a field, if I let you go to increase this field, you should pay attention to what, how to do? The operation is as follows:1. Note Disk space (temporary table directory)2. Current memory Remaining Amount3. There are currently no large transactions in the execution4.innodb_online_alter_
-------------------------------- ----------------------------------------Failed_login_attempts 10The query failed_login_attempts value is 10, which is the number of consecutive login failures that are calculated from the first logon failure. Rather than the number of cumulative failures2. Modify the value of the failed_login_attemptssql> alter profile default limit Failed_login_attempts unlimited;Configuration file has changedSql> Select Resource_name,limit from dba_profiles where Resource_name=
Whether the Oracle database query object is locked and unlocked
For details about whether the Oracle database object is locked, see the following SQL statement and the unlock process:
-- Query the locked objects of the current userSelect B. OBJECT_NAME, B. OWNER, C. SID, C. SERIAL #, C. OSUSER, C. MACHINE, C. TERMINALFrom v $ LOCKED_OBJECT A, DBA_OBJECTS B, V $ SESSION CWhere a. OBJECT_ID = B. OBJECT_IDAnd a. SESSION_ID = C. SIDAND c. STATUS = 'inacti
-adorganizationalunit-protectedfromaccidentaldeletion $false$ou | Remove-adorganizationalunit-confirm: $false650) this.width=650; "Width=" 981 "height=" 588 "title=" QQ picture 20150211220510.png "style=" width:721px;height:490px; "alt= "Wkiom1tbacdtyvyqaajwqr408v0995.jpg" src= "Http://s3.51cto.com/wyfs02/M00/59/AE/wKiom1TbaCDTyVyQAAJwQR408V0995.jpg"/>The OU and the child nodes were found to be deleted normally.Requirement 2: Check out the locked AD account and enable it.Search-adaccount-lockedo
The Ubuntu system starts by default to login with the user name entered when the system is installed. such as: Rusky login System as a non-root account, when we do some operation, the system prompts for the root password to be entered. But we didn't set the root password. At this point, you can set a password for root by doing the following:[Email protected]:/$ sudo passwd[sudo] password for Rusky:Enter New UNIX Password:Retype new UNIX Password:Passwd:password updated successfully[Email protect
png picture cannot unlock edit in Photoshop What to do? PS can open the PNG format of the picture, but can not do any editing, the picture display has been locked, but there is no way to unlock, what to do? Below to share the PNG picture unlock tutorial, need friends can refer to under.
1, open your PS, in some cases you will find that your PNG image can not be edited, and can not unlock.
2, as shown in the following figure. It's locked. And it can't be
Tags: style blog color using strong data div SP logPreface: Oracle database comes with many users, such as SYSTEM, SYS, and Scott, but by default, Oracle only understands locks on 5 of these users: SYS, SYSTEM, Dbsnmp, Sysman, and Mgmt_view, respectively. Other users are locked. In order to learn from Oracle later, it is necessary to understand the lock status of Oracle users and how to unlock them.Here are the specific procedures:1, The default Scott user is locked, first unlock will be able to
Recently developed a small problem encountered, after executing a section of SQL found that the table is lockedDisplay error: Ora-00054:resource busy and acquire with nowait specifiedBaidu later found that the session process stuck, it can be said that some resources of the table is lockedThe following methods can be used to unlock:Select T2.username,t2.sid,t2.serial#,t2.logon_timeFrom V$locked_object t1,v$session T2where T1.session_id=t2.sid order by T2.logon_time;Can query for locked users and
Thank you!
Source:
Http://blog.csdn.net/zhanghaolpc/article/details/5594576
Recently, I encountered a very depressing problem. When running npgsql, I used its distributed transaction (system. transaction is not dbtransaction). Once a program
1. Automatic Installation selected during installation. Because the user name and password have been forgotten for a long time, several default user names and passwords have been tried now (the table contains the default user name and password ).
1.
Whether the Oracle database object is locked query SQL and the unlock process SQL are described below:--Query the object being locked under the current userSELECT B.object_name, B.owner, C.sid,c.serial#,c.osuser, C.machine, c.terminalFrom
There is a database on the server that prompts user to be locked when using df6100i/wisdom.df6100@energydb login, executing
Alter user df6100i account unlock;
command, the account unlock, you can log in, but the next day or prompts the user to be
Directory
1. Preface
2 Queue Internal structure
2.1 Definition of the node
2.2 Why the next pointer inside the node needs an atomic update
2.3 Internal member variables for queues
3. Building a lock-free
tool, enter a few simple commands on the terminal:
Sudo add-apt-repository ppa: phablet-team/tools
Sudo apt-get update
Sudo apt-get install phablet-tools Android-tools-adb android-tools-fastboot
Users must also make sure that their mobile phones have been set for development and use. Go to "Settings/about mobile phone" and click "software version" 7 times. If the operation is correct, you will receive a me
Ubuntu Touch 13.10 is a new operating system launched by Canonical for mobile phones, but it is not that easy to install to a mobile phone as compared to the desktop.
Canonical provides all the necessary tools for installing Ubuntu Touch 13.10. This is really good news, because manual installation of the operating system is quite troublesome.
Note that this operating system is not available on any mobile phone. For development reasons, Canonical restricts that it can only be used on Nexus 4 devi
supported Nexus devices or want to port it to a new target, you need to set up your working environment to build Android from source. This setup is more or less the same whether you are building AOSP or a project based on it such as CyanogenMod, SEAndroid or Ubuntu Touch.If you are new to building Android sources you may want to check out this document and others in the Getting Started section on the Google documentation site, as it covers the basics and terminology of AOSP building.While Ubunt
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