Tags: Mysql Linux Centos system operation and maintenanceBefore upgrading, first backup the entire database, preparedBacking up the database, upgrading MySQL usually does not lose data, but for the sake of insurance, we need to do this step. Enter the command:Mkdir/software Create a folder to store backup filesMysqldump-u root-p--all-databases--default-character-set=utf8 >/software/databases.sqlTo stop the MySQL service, enter the command:Service Mysqld StopDownload and install the latest RPM fi
Keil upgrade to 4.72 version, Jlink began to prompt firmware upgrade, is very irritable, but look on the internet can be said to replace the previous version of the Segger file to Keil the latest version of the Segger file, it can be used, I tried the next, it really works ha, below to share the operation process.
Save the previous 4.6 version of the Segger file, the version using Jlink no problem, Keil6.0
Error saving data to database Archives table-Workaround!Presumably you will also encounter this problem, when Dedecms published the article prompted to save data to the Database Archives table error.This bug appears above MYSQL5, the processing method is very simple, the MySQL strict mode is turned off, the method is as follows:Find My.iniWillSql-mode= "Strict_trans_tables,no_auto_create_user,no_engine_substitution"Revision changed toSql-mode= "No_auto_create_user,no_engine_substitution"Can, pro
As an Android app, you will inevitably deal with SQLite. With the continuous upgrading of the application, the original database structure may no longer adapt to the new features, this time, you need to upgrade the structure of the SQLite database. SQLite provides the ALTER TABLE command, which allows the user to rename or add new fields to an existing table, but cannot remove fields from the table.And you can only add fields at the end of the table,
1, the first user to determine, their own choice and purchase of the system disk is not a genuine system disk, if not genuine system disk, please win7 system users to start a genuine Win7 system disk after again select upgrade, believe that the use of genuine system disk, should not appear above the fault.
2, users in the upgrade time, but also need to consider their own computer hardware is not too old, a
Write in front:First, when we execute the upgrade script updater-script, it means that we have entered the upgrade installation state. So let's start with the actual installation as a portal. That is to say, we start with the Install_package function in install.cpp to analyze it step-by-step.Here is the main analysis of the script-related sections, others please refer to this friend's blog http://blog.china
tag: discuz HTTP Io ar file SP data Div on After the ucenter upgrade is complete on some sites, you are still prompted to upgrade the ucenter to version 1.6.0 or later. The reasons for incorrect ucenter version numbers and solutions are as follows, there may be several files and solutions:1. ucenter files are not completely uploaded, at this time you can download a ucenter Program (http://download.comsenz.c
How to upgrade the MIUI8 stable edition
MIUI8 brought the mobile phone, application double open, suspended ball, orchid Pavilion Font, long screen, pseudo base station recognition, full-featured NFC and other functions, according to the Millet, MIUI8 stable version of the installation package for 1GB, please back up before the upgrade data.
The push is also for the global 200 million MIUI users, sup
Label: style Io ar strong file data SP 20142014.10.3If the third-party module chardet or cchardet is installed, the webpage encoding can be detected automatically.2014.10.1Fixed the issue that atom links could not be obtained.Upgrade Method:1. ClickBack up the current database file to disk2. Download the source code. The method is the same as the installation tutorial.3. decompress the source code. The method is the same as the installation tutorial. Press A to overwrite all files.4. restart the
Back up data1. The jailbreak upgrade ios system will clear all the data in the ipad, so we need to back up the data.2. You can install a Baidu cloud on the ipad, and then we can upload the ipad data to Baidu Cloud.Download firmware1. Download from the 91 iPhone zone at http://iphone.91.com/fw /. Go to the firmware download page and select your desired model, as shown in the following figure.2. On the firmware download page, select the latest firmware
Method A, itunes update (download iOS 8 firmware first)
We first connect the iOS device to the computer, then turn on itunes on the computer, hold down SHIFT, click "Restore", and then select the iOS 8 firmware file downloaded to the computer to upgrade.
Method B, OTA update
If we have WiFi, we can click "Set" in the device-"general"-"Software Update" and then download and install it directly on the computer.Method C, using itunes for device update
Preparatory work
Ready to iOS8 BETA4 firmware package, can be downloaded to the official Apple downloadA computer, a iphone4s, a data lineBack up all the data in your Apple 4s to avoid data loss after the upgrade.
Update steps
1. Enter the official download of the iOS8 version of the attention must be the same as your model can oh.
2. Furthermore, we connect the iphone4s to the computer and open itunes on the computer.
3. Furthermore, we press
The iphone turned into bricks. It's just a fake. We just need to restart the Apple phone and we can solve it.
is reset (hard reset reboot).
How to operate: while holding down the home key and power switch, until the Apple logo appears to let go.
If the above approach is not resolved, we can refer to the following methods to upgrade the 5s system OH.
Apple 5s ios7.1.2 how to update http://www.111cn.net/sj/iOS/63425.htm
Added to:
Some users who ha
Cause analysis
This problem is iOS7.1.2 system bug has not been resolved, only waiting for iOS7.1.2 upgrade Oh, but also is not no way.
Solutions
First we have to hold down the home key and the Power key (the lock screen key) for up to 10 seconds, until the device is completely shut down. The Apple logo will then appear automatically, indicating that the device has been restarted. At this point we do not need to do anything, static to the device in
down the home key for 30 seconds until itunes automatically detects a recovery-mode iphone and then loosens it.
Method Two,
You can also download a I4 assistant, according to the above prompts to exit the DFU mode, while the power button down at the same time, when the screen appears white Apple when you let go, you can quit the DFU mode, and also want to talk to the landlord said jailbreak state of the iphone, is not directly upgraded to iOS7, There's no need to try again.
In addition: I
1, first download Python 2.7.8 version of the TAR package. Why not choose the latest version of 3.4? Because the compatibility of version 3 is not good. A number of mature projects have been developed based on 2.7.https://www.python.org/download/After the download is found, it is uploaded to the server via the Linux RZ command, and you can also download it from the command wget.2. The default download address is the home address of the current user. NextTAR-XVF python-2.7.8. TarAfter decompressi
The cycle of replacing a laptop is not the same as replacing a mobile phone or other electronic device, and more friends want it to work longer. But considering the hardware aging, slow reaction time and other factors will certainly affect the experience and efficiency. In fact, as long as the replacement of some accessories can let the old notebook into a "second spring" state
Notebook accessories, theoretically from memory, screen, motherboard, CPU, graphics, hard disk, power, key
1. Create the lib121 directory under the hive0.13.1 version
Cd/opt/cloudera/parcels/cdh/lib/hive;mkdir lib1212. Download the hive1.2.1 version and copy all files from this version of Lib to lib121
3. Modify the Hive_lib variable in/opt/cloudera/parcels/cdh/lib/hive/bin/hive
hive_lib=${hive_home}/lib121
4. Update the JLine jar package on Hadoop and remove the old Jlien jar package
RM-RF Jline-0.9.94.jar
ln-s/opt/cloudera/parcels/cdh/lib/hive/lib121/jline-2.12.jar/opt/cloudera/parcels/ Cdh/lib
SharePoint 2010 upgrade to 2013 time to ensure that users can connect, but cannot change the upgrade dataI summarize the steps in red please note their meanings. Step 1: Connect to the content of the SharePoint 2010 database on the SQL DBS. Step 2: Set the read-only state of the SharePoint content database to True. Step 3: Restore the SharePoint 2010 content database backup files to the SharePoint 2013 farm
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