point, the Database Upgrade in a simple environment is over.
Second, it also applies to any storage engine.
1. Install the new MySQL version first.
2. Back up the database in the old version.
# Mkdir/opt/mysqlsystems_bk; mysqldump-p3306-uroot-tab =/opt/mysqlsystems_bk mysqlsystems_com
Note: The-tab option can generate two types of files with the suffix *. SQL and *. txt under the Backup Directory
The example of this article is about the automatic detection version of Android programming and the method of auto upgrade. Share to everyone for your reference, specific as follows:
Steps:
1. Detect the current version of the information androidmanifest.xml-->manifest-->android:versionname.2. Obtain the version number from the server (the version number exists
The current Update-script script format is edify, which is different from amend, we only analyze the main syntax, and the process control of the script.First, Update-script script syntax Introduction:we look at the syntax that is primarily involved in the generated script. 1.assert (condition): If the condition parameter evaluates to FALSE, the script execution is stopped, otherwise the script continues to execute. 2.show_progress (frac,sec): Frac rep
Android Studio update and upgrade method, androidstudio
Since the 2013 Google I/O conference, I have migrated android ide development tools from eclipse to Android Studio. android studio has been updated and improved. To keep pace with the times, of course, we need to update
constructor for the Sqliteopenhelper class has a parameter of int version, which means the database version number. For example, in software version 1.0, when we use Sqliteopenhelper to access the database, this parameter is 1, then the database version number 1 will be written in our database.By the 1.1 version, our database needs to change, then our 1.1 version of the program will use an integer greater
We can see that many Android applications have the automatic update function. You can update the software with one click. Thanks to the software package management and installation mechanism of the Android system, this function is quite simple to implement. Let's take a look at it. First, the interface effect is provided:
1. Preparation knowledge The version ID
environment is over.Second, it also applies to any storage engine. 1. Install the new MySQL version first.2. Back up the database in the old version.# Mkdir/opt/mysqlsystems_bk; mysqldump-p3306-uroot-tab =/opt/mysqlsystems_bk mysqlsystems_comNote: The-tab option can generate two types of files with the suffix *. SQL and *. txt under the Backup Directory mysqlsystems_bk. The SQL statement stores the SQL statement of the created table and the TXT state
.jpg "src=" http:/ S3.51cto.com/wyfs02/m02/73/4a/wkiol1x5fkftkubvaajjvt0y5cu989.jpg "/>So this upgrade only needs to upgrade MDT.The upgrade process is as follows:1, before the operation to confirm the current test version of the file size and specific content650) this.width=650; "title=" 04.png "style=" Float:none; "a
Sqliteopenhelper class has a parameter of int version, which means the database version number. For example, in software version 1.0, when we use Sqliteopenhelper to access the database, this parameter is 1, then the database version number 1 will be written in our database. By the 1.1 version, our database needs to change, then our 1.1 version of the program will use an integer greater than
that needs to inherit it and implement several of its callback functions **/ /*1. Write internal class inheritance Sqliteopenhelper 2. Build Implementation Method (1) Create public void OnCreate (Sqlitedatabase db) {(2) upgrade public voi D Onupgrade (sqlitedatabase db, int oldversion, int newversion) {3. Builder calls the constructor method of the parent clas
key words into a unit, re-write creative, write good ideas.
4. The account set a reasonable limit, in case the consumption of the day suddenly increase sudden reduction.
Read more about my blog (google: Chao's blog)
The second part: did not do Baidu promotion friend
This part of the friend is lucky, do not tangle in the promotion account inside, but you note that the number of sites and a part of the SEO related data may have changed. Here I do
recently been busy with the project, for a long time no bo, recently in the deployment of ESXi found some problems, come back early this evening, will it appear, hoping to have the needs of friends. automatically from the ESXI5.5, how many problems, such as SSO problems, Windows Server 2008 blue screen problem, this time the server upgrade, just solve these problems, here to write the upgrade process.
Upgrading from ESXi 5.5 to ESXi 5.5 U1 can be done with ESXCLI, limited to minor versions of the upgrade. If you upgrade across a large version, use update management to upgrade or reinstall ESXi5.5 U1.The procedure is as follows:1. Download the corresponding Zip upgrade pat
Public abstract void Onupgrade (Sqlitedatabase db,int oldversion,int new Version) This method needs to be re-written.
public abstract void Onupgrade (Sqlitedatabase db,int oldversion,int new Version)This method needs to be re-written.The Onupgrade method is used when the repository needs to be upgraded. Can be used to add a table or any other action. If you want to add a new column you can use ALTER TABLE to insert the table. If you need to rename or delete a column, you can use AL
Since the Google I/O Conference, I moved the Android IDE development tool from Eclipse to Android studio, Android Studio has been updated, in order to keep pace with the times, we certainly have to update the tool to the latest version! In fact, the update is very simple, just select Check for update from the Android S
We know that Motorola is working hard to enable its smartphones to quickly upgrade to Android 5.0 Lollipop. Now it looks like the upgrade time is earlier than expected. A few days ago Motorola leaked a beta version of Android 5.0 Lollipop that was only tested by Motorola smartphone Saker users. As a result, Motorola wi
Skip this step if you are completely new to the installation.
Find the ragnarok database directory under your Mysql database directory, for example, install Mysql inUnder the D: \ mysql directory, find the ragnarok database directory under the D: \ mysql \ data \ directory.Copy it to other places![Upgrade your ODBC-MySQL ODBC driver]First open your control panel and find [add and delete programs] to delete the old MySQL ODBC driver.Then install mydbc-
Android uses the SQLite database to save data, the database version of the upgrade is what is going on, here to say.First, the Software v1.0Install v1.0, assuming the v1.0 version has only one account table, then go to inherit Sqliteopenhelper OnCreate, do not go onupgrade.1, v1.0 (direct installation of v1.0)Second, Software v2.0There are 2 types of installation
This part of the record is kernel upgrade, before on the FPGA ran 2.6.29 kernel to verify the function of some IP.The source code for Android from Google's website is not part of the kernel, and kernel needs to be downloaded separately.A version of 3.0.72 was found after downloading from Google.So the record here is the process of kernel upgrading from 2.6.29.4 to 3.0.72.The first idea is to find a 3.0 on t
tool to publish.(4) Digital certificates are valid, and Android only checks the validity of the certificate when the application is installed. If the program is already installed in the system, even if the certificate expires, it does not affect the normal function of the program12. Talk about the Android NDK understandingNDK Full Name: Native development Kit.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.