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(int p=0;p{for (int i=0;i{Cmd. ExecuteNonQuery ();}percent=p;//here is the definition of percentage, and you estimate how much time the operating fee defines.}Conn. Close ();The above code performs a database operation that consumes timestate=2;}Catch{Errortime=datetime.now;percent=0;state=3;}Finally{Finishtime=datetime.now;percent=0;}}}} Perform a long operation in asp.net, and sometimes need to have a feedback on the client to understand the progre

Tags: img desktop prevents Microsoft one EUI Linu time everThe Linux operating system relies tightly on process creation to meet the needs of users. For example, as soon as a user enters a command, the shell process creates a new process, and the new process runs another copy of the shell and executes the command entered by the user. The Linux system is used to create a new process through fork/vfork system tuning. This article describes how to use the Fork/vfork system tune to create a new proc

# The role of Commandlinerunner in Springboot> in the normal development may need to implement after the project launch function, Springboot provides a simple implementation is to add a model and implement the Commandlinerunner interface, implement the function of the code in the implementation of the Run method# Simple Example"' JavaPackage Org.springboot.sample.runner;Import Org.springframework.boot.CommandLineRunner;Import org.springframework.stereotype.Component;@Componentpublic class Mystar

the above operation:is readable () return from select () are readable () return from select () is readable () return from select () is readable () RET Urn from select ()Then comment out the Sks.remove (key) line and run it again:is readable () return from select () return from select () return from select () the From select () return from select () retu RN from select () return from select () return from select () return from select () return from select () return from select () Return from sel

remainder of the analogyWhen the F1 is a-B, it is executed from the time of the minute to the minute of the hour, and the F2 is a-B indicating that it is executed from the first to the first, and the remainder of the analogyWhen F1 is */n, it is performed once every n minutes, and F2 is */n for every n-hour interval, with the remainder of the other analogyWhen F1 is a, B, C,... A, B, C,... Minutes to execute, F2 for a, B, C,... The time indicated that the first, B, c ... Hours to execute, and t

The previous framework used the quartz framework to perform timing scheduling problems,The boss said the configuration is too cumbersome, each schedule needs to be added in the spring configuration,Can reduce the amount of configuration to improve development efficiency,Recently looked at spring's scheduled using annotations to dispatch,Feel very convenient, at least the configuration of things a lot less,So stay for forgetting,First, we need to confi

Use the Laravel Artisan command tool to perform a migrate operation that prompts for a "class not found" error, but this migrate class file exists and, in the event of this problem, executes the following composer Dump-autoload, Problems are solved. The first error is as follows: [Root@iz94r80gdghz tanteng.me]# PHP Artisan migrate:reset[Symfony\component\debug\exception\fatalthrowableerror]Fatal error:class ' createattachmenttable ' not found The c

data to a CSV file, you can use other tools to analyze the data later.MemoryThis is valuable in terms of heap memory, non-heap memory, the state of the memory pool, the allocation and usage of overall memory, and the number and time of garbage collection by different GC. You can manually perform GC view memory changes.It is useful to analyze Java memory issues for tuning, you learn the JVM memory model, and then you find that each value here has mean

Cyclicbarrier, the name is a circular fence, the fence is obvious is to stop a bunch of "things", where "things" is a thread, when the number of threads specified by the fence is not reached, all the threads wait, to reach the specified number, together to perform the following tasks. API documentation explains:A synchronization aid that allows a sets of threads to all of the wait for each and the reach a common barrier point. Cyclicbarriers is usefu

statements to find the previous day of the Rman backup set of the Bs_key value saved to a variable bskey_list, this value can be more than one yo, so again with a variable bskey_list_ With_comma these values together with commas. The script "Validate checksum" section, as shown in the following illustration: This is also the most critical aspect of the entire shell script, using the "Validate Backupset Bs_key value list check logical;" (Shaped like validate backupset 6197,6198,6199,6200,620

Recently used a lot of views, mainly statistical data used, built more than 10 materialized views, set in every night to perform the refresh task, but more than 10 of which four are always unable to automatically refresh, manual compilation will be wrong, the implementation of the task will be reported as follows error: Will not be a permission problem, it is not possible to set the time problem, otherwise it can not be normal to refresh only these fe

1 Crond Service not started Crontab is not a function of the Linux kernel, but relies on a crond service that can be started and can be stopped as well. If you stop and you can't perform any scheduled tasks, the workaround is to open it: Crond Or Service Crond Start If prompted Crond command does not exist, may be mistakenly deleted, CentOS can be reinstalled by this command: Yum-y Install Crontabs 2 Permission Issues For example: The script d

Copy Code code as follows: $ (function () { var handler = function () { } var timer = setinterval (handler, 1000); var clear = function () { Clearinterval (timer); } }); I'm going to add a page jump to the timer and load the timer on the page load. How to write it? To achieve is like Baidu above the launch of the instant message that the place prompts how many messages. I have a method for the number of Java query bars. How to write JS? Timer: Used to

This article is to share a solution that solves the problem that the Debian Mount Partition appears not authorized to perform Operati error. After updating to Debian 8.0. Installed the LXDE Desktop Manager.Although very concise, but still like Xfce.It was later found that using Thunar mount partitions under Xfce would appear: not authorized to perform operation error.Inside Mentioned:Check the file/usr/shar

This error occurs when using fragment today Illegalstateexception:can not perform this action after Onsaveinstancestate: E/androidruntime (12747): caused By:java.lang.IllegalStateException:Can not perform this action after Onsaveinstancestate at Android.support.v4.app.FragmentManagerImpl.checkStateLoss (fragmentmanager.java:1314) at a Ndroid.support.v4.app.FragmentManagerImpl.enqueueAction (fragmentmanager.

the "Trigger" option, click "New", create task Execution time, "Repeat task Interval" after the choice, there is time to choose, is hourly, or every minute, you can choose to modify the time , and then determine.Again to configure the need to perform the "action" is to select the program or BAT file, it is important that the configuration is to select the bat file, in the "Start from (optional)" Here must fill in the corresponding execution program o

Tags: style blog http io color using for SP dataSQL Server 5030 Error ResolutionToday when using SQL Server, because the database was previously created forgot to set collocation, the database inserted Chinese characters are garbled, so into the options of the databases to modify collocation, the database has appeared could Not being exclusively locked to perform the operation this error, cannot modify character set to Chinese_prc_90_ci_as.The solutio

helpless. In the interface of the new function (using WebSocket real-time driving data), the interface of querying the device information in the background is called, and the Entity data is not found. Then, invoking the same interface can be implemented in other interfaces. I have a lot of doubts about the framework, why?But now the main task is to deliver the function as soon as possible, I wrote down the question.In order to implement the interface that calls query device information in the c

Label:Always error when installing ORACLE12, errors are as follows:[INS-30131] Failed to perform the initial setup required to verify the Setup program.Cause-the temporary location could not be accessed.Action-Make sure that the current user has the required permissions to access the temporary location.Additional Information:-Frame Set check fails on all nodes-reason: The cause of the problem is not available-Action: User Action Unavailable failed nod

Label:Workaround 1:Set the profiles of the below three to ' None 'Set the following three configuration files to noneFnd_validation_levelFND Verification LayerFnd_function_validation_levelFND Functional Verification LayerFramework_validation_levelStructure Verification LayerWorkaround 2:The answer given above is: MetalinkThe issue could is related to Roles being missed. Can you perform the following steps:1) Login with the SYSADMIN user and click on u