我需要查看一个系统中数据库备份失败的原因.
日志说明如下:
BACKUP无法完成命令BACKUP LOG XXXXXX.检查备份应用程序日志以获取详细消息.
我进入了Windows事件日志,检查了应用程序日志,并猜测我在这些日志中发现了这个特定错误
BACKUP无法完成命令BACKUP LOG XXXXXX.检查备份应用程序日志以获取详细消息.
默认情况下,实际备份应用程序日志存储在何处?
我有一个简单的C#控制台应用程序附加到事件.我需要程序继续运行,以便它可以响应事件.什么是保持运行的正确方法?
这是我的申请:
using System;
using NAudio.CoreAudioApi;
namespace MaxVolume
{
class Program
{
private const float DesiredLevel = -15;
private static MMDevice _device;
static void Main(string[] args)
{
MMDeviceEnumerator mmde = new MMDeviceEnumerator();
_device = mmde.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
_device.AudioEndpointVolume.MasterVolumeLevel = DesiredLevel;
_device.AudioEndpointVolume.OnVolumeNotification += SetVolume;
}
static void SetVolume(AudioVolumeNotificationData data)
{
if (Math.Abs(data.MasterVolume - DesiredLevel) > 0.1)
{
_device.AudioEndpointVolume.MasterVolumeLevel = DesiredLevel;
}
}
}
}
Run Code Online (Sandbox Code Playgroud) 我使用这个powershell命令:
get-vm | ft name, *start*, *stop*, customproperties
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返回以字符串数组作为属性的对象(自定义属性):
Name StartAction DelayStart StopAction CustomProperties
---- ----------- ---------- ---------- ----------------
TKAD4 AlwaysAutoTurnOnVM 0 ShutdownGuestOS {NoStartupDelay, ...
TKAD3 AlwaysAutoTurnOnVM 0 ShutdownGuestOS {NoStartupDelay, ...
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我如何从数组中仅返回一个元素,该元素是一个属性作为对象,以将其显示为表格的一部分?
我想要的输出如下所示:
Name StartAction DelayStart StopAction Custom1
---- ----------- ---------- ---------- -------
TKAD4 AlwaysAutoTurnOnVM 0 ShutdownGuestOS NoStartupDelay
TKAD3 AlwaysAutoTurnOnVM 0 ShutdownGuestOS NoStartupDelay
Run Code Online (Sandbox Code Playgroud) 我可能有一组看起来像这样的if语句:
if (a and b and c and d) {
// do stuff
} else (!a and b and c and d) {
// do something else
} else (!a and !b and c and D) {
// do yet something else
} ...
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等等所有可能的排列.
我想这样做:
switch ((a ? 'Y' : 'N') . (b ? 'Y' : 'N') . (c ? 'Y' : 'N') . (d ? 'Y' : 'N')) {
case 'YNYN':
// do stuff
break;
case 'NNNN':
// …Run Code Online (Sandbox Code Playgroud) 在CodeIgniter框架上开发的项目上使用版本控制时,我应该忽略哪些文件夹?
我已经忽略了application/cache文件夹,但还有其他吗?
我创建了一个自定义计时器作业,并通过sharepoint中的功能事件实现了它.
当我试图激活它时,它显示了这个特殊的错误:
Object reference not set to an instance of an object. at TimerJobExample.MyFeatureReceiver.FeatureActivated(SPFeatureReceiverProperties properties) in C:\Documents and Settings\admin-shuklag.INFRADEV\My Documents\Visual Studio 2008\Projects\TimerJobExample\TimerJobExample\MyFeatureReceiver.cs:line 22
at Microsoft.SharePoint.SPFeature.DoActivationCallout(Boolean fActivate, Boolean fForce)
at Microsoft.SharePoint.SPFeature.Activate(SPSite siteParent, SPWeb webParent, SPFeaturePropertyCollection props, Boolean fForce)
at Microsoft.SharePoint.SPFeatureCollection.AddInternal(Guid featureId, SPFeaturePropertyCollection properties, Boolean force, Boolean fMarkOnly)
at Microsoft.SharePoint.SPFeatureCollection.Add(Guid featureId)
at Microsoft.SharePoint.WebControls.FeatureActivator.BtnActivateFeature_Click(Object objSender, EventArgs evtargs)
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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错误行在下面突出显示
public override void …Run Code Online (Sandbox Code Playgroud) 你好我有一个mysql数据库,里面有一个地址表.
这是它的创建方式:
CREATE TABLE IF NOT EXISTS `addresses` (
`adr_id` int(11) NOT NULL AUTO_INCREMENT,
`per_id` int(11) NOT NULL,
`adr_street` varchar(50) NOT NULL,
`adr_houseno` int(11) DEFAULT NULL,
`adr_housenoadd` varchar(10) DEFAULT NULL,
`adr_postcode` varchar(25) NOT NULL,
`adr_city` varchar(20) NOT NULL,
`adr_type` varchar(45) DEFAULT NULL,
`cnt_id` int(11) NOT NULL,
`adr_date` date DEFAULT NULL,
`sys-mut-dt` timestamp NULL DEFAULT NULL,
`sys-mut-user` varchar(20) DEFAULT NULL,
`sys-mut-id` int(11) NOT NULL DEFAULT '0',
PRIMARY KEY (`adr_id`),
KEY `per_id` (`per_id`),
KEY `cnt_id` (`cnt_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ; …Run Code Online (Sandbox Code Playgroud) php ×2
backup ×1
c# ×1
codeigniter ×1
logging ×1
mysql ×1
powershell ×1
sharepoint ×1
sql ×1
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stsadm ×1
timer-jobs ×1