sequence generator has survived to 9 in August, apparently there would be an error if someone was inserting data into the database at this time, because the planid generated at this moment is: DP-P-09070009, which was generated when Someone inserted the data in July, therefore, an error is reported for the planid field with a unique constraint. How can this problem be solved? My initial idea is that before each incoming request, the @ Count value and
Label:Let's go on to the LINQ to SQL statement, which we'll talk about Insert/update/delete operations. This is most commonly used in our programs. We look directly at examples.Insert/update/delete operation Insert (INSERT) 1. Simple FormDescription: The new object, which is added to the corresponding collection using the InsertOnSubmit method, is submitted to th
environment:
Delphi Ten Seattle
Xcode 7.0
IOS SDK 8.4 (This is the key, be sure to use SDK 8.4 to not flash back)
Real-Machine testing (the following types are not flash back):
IPhone 3GS v6.1.2 (+ bit)
IPhone 4 v7.1.2 (+ bit)
IPhone 4S v9.0 (+ bit)
IPhone 5S v8.4.1 (+ bit)
IPad 2 Mini v9.0 (+ bit)
2. Re-shelves using XE8:Development environment:
Delphi XE8 Update
Tags: mongodb update $incOngodb Chinese file in the database after the Update method updated the document, the Update method has two parameters, such asUpdate (ARGS1,ARGS2)ARGS1 refers to the condition of querying a document;ARGS2 refers to what changes are made to the document being queried;$inc used to increase the value of the key used, if the key is not prese
1 New Thread () {2 Public void run () {3 looper.prepare (); 4 Toast.maketext (atoolsactivity. this, "Backup succeeded", 0). Show (); 5 Looper.loop (); 6 }; 7 }. Start ();The first of these methods1 NewThread () {2 Public voidrun () {3 //handler.sendemptymessage (0);4 //You can also do it in Runonuithread without sending a message.5Runonuithread (NewRunnable () {6 @Override7
Meeting content: Yesterday just opened a meeting, today received tomorrow to show the notice so reassign the task.1 ginger in the maze to add new features, like plants vs zombies in the fog, the entire map is invisible path can only show scary around the path of the surrounding, thus more prominent maze theme. Then add music for each mode.2 weeks Super: Beautify the entire interface work including background, wall, and also responsible for helping Ien
Summarize the recent development of CNN Model (i) from:https://zhuanlan.zhihu.com/p/30746099 Yu June computer vision and deep learning1. PrefaceLong time no update column, recently because of the project to contact the Pytorch, feeling opened the deep learning new world of the door. In his spare time, Pytorch trained the recent CNN model of State-of-the-art in image classification, which is summarized in the article as follows:
ResNet [
Microsoft released the visual Studio Update 1 on December 1. Microsoft also provides downloads in MSDN, and the MSDN Visual Studio Update 1 is consistent with the official free download file, except for the file name, with the exception of TFS.===============================
Mybatis (9) ------ Level 1 cache, level 2 cache, mybatis ------
In the previous chapter, we explained how to improve query efficiency through mybatis lazy loading. In addition to lazy loading, what other methods can be used to improve query efficiency? This is the cache in this chapter.
Mybatis provides a level-1 cache and level-2 cache for us to understand:
①
GitHub practice series ~ 1. Environment deployment + create the first file 2015-12-9,
Installation series:
Download: http://git-scm.com/download/
Environment setup: (relatively simple, see the figure)
The following is the command mode, which requires a little linux BASICS (Linux Basics). Check the details.
1. Let's look at the configurations of git:
Git
Rh-9 dhcp service configuration 1 -- Linux Enterprise Application-Linux server application information, the following is read details. 1. dhcp installation: Use rpm-ivh to install the three software packages dhcp-*** dhcp-devel-*** dhclient -***
2. dhcp server configuration: The dhcp Service is configured and run according to/etc/dhcpd. conf. It does not exist by
using the following command:
Listing 3
Gzip-d ese.tar.gz
Tar-xvf ese.tar
Change the directory to the product directory:
Cd ese/Disk1
Run DB2_install to install the IBM DB2 9 product:
./Db2_install
Enter the ese client when prompted to enter the name of the product to be installed.
The CLIENT contains the software packages required for DB2 application development. Generally, installation is required.
Install the latest DB2 patch
After installing basic
updates the Visible property of the element at any time when the value of the monitor property changes, and if the parameter is not a monitoring property, it only sets the Visible property of the element once, and then does not update the element as the value changes .Additional Parameters Additional ParametersNonote:using functions and expressions to control element visibility Note: Controlling elements with functions or expressions is visibleYou ca
user table, only you are capitalized here), but we have not saved the object to the variable and cannot manipulate the object. So we first save the object to the variable user@user =user.new (:username=> ' Sundi ',:email=> ' [email protected] ')Note that the Rails ' console line is full and will not be wrapped, but the following is the > symbol, as in the statement above:The results are as followsThis is not enough, we also need the model's Save method to actually create this object into the us
between JSP and servlet, the common denominator, and the scope of their respective applicationsAnswer: JSPs are essentially servlets, but they are not created the same way. The servlet is completely Java program code composition, good at process control and transaction processing, It is not intuitive to generate dynamic Web pages through Servlets. JSP is made up of HTML code and JSP tags, which makes it easy to write dynamic Web pages. Therefore, the servlet is used to control the business proc
Demo Address account: admin password: admin123 Please do not delete the user to avoid others can not experience (the article has been included in the source code, open source to 17 download)Shortcut address (QQ group 37509873 also has the corresponding download):The 2nd source download password: wg0iLatest code Generator +17 speaking source download password: N2jiSWFUpload in MVC4 file upload password: 0ntzcan also be paid to obtain a copy of the latest source contact qq:729994997 Price 500-----
invalid). Ms does not provide a way to stop the service.
After the service is started, you can use the following three methods:Detectnow: Start updatePause: Pause updatesResume: resumes updates.
ReferenceCode:
1
Public
Static
Void
Autoupdatesetting ()
2
{ 3 System. Console. writeline ( " AutoUpdate imformation: " ); 4 5 Wuapilib. automaticupdatesclass updatecls = New Wuapilib. automaticupdatesclass ();
In the time that Windows 8.1 Update 1 is about to be released, there are probably a few leaked screenshots, and rumors of the 8.1 system update will be released before and after the Microsoft Build Convention. The leak screenshot We're looking at today is compiled version 9600.16596, and the new feature of this release is that you can directly apply the modern UI
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