connect

one sql command with two connection string

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I want to run this query in C# SELECT * FROM [FirstDataBase].[dbo].[table1] INNER JOIN [SecondDataBase].[dbo].[table2] and my code is : SqlConnection cn = new SqlConnection(myConnectionString); SqlCommand cmd = new SqlCommand(@"SELECT * FROM [FirstDataBase].[dbo].[table1] INNER JOIN [SecondDataBase].[dbo].[table2]"); cmd.Connection = cn; // here is my question !!! cn.Open(); int x = (int)cmd.ExecuteScalar(); but my query needs two connection string ... one for [FirstDataBase] and second for [SecondDataBase]... How can I do this ? How can I

PyQt4.QtCore.pyqtSignal object has no attribute 'connect'

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm having issues with a custom signal in a class I made. Relevant code: self.parse_triggered = QtCore.pyqtSignal() def parseFile(self): self.emit(self.parse_triggered) Both of those belong to the class: RefreshWidget. In its parent class I have: self.refreshWidget.parse_triggered.connect(self.tabWidget.giveTabsData()) When I try to run the program, I get the error: AttributeError: 'PyQt4.QtCore.pyqtSignal' object has no attribute 'connect' Help? Thanks in advance. 回答1: I had the same exact problem as you. Try moving self.parse_triggered =

PyQt no button.clicked.connect function?

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I've got PyQt4 with a python 3.4 and there is this strange bug occurring. Whenever I try to call btn.clicked.connect(), Pycharm will throw this error: Cannot find reference "connect" in "function". So for example: btn = QtGui.QPushButton("Quit", self) btn.clicked.connect(QtCore.QCoreApplication.instance().quit) will throw this error. How? Do I have missing files? 回答1: According to Events and Signals in PyQt4 - PyQt4 Tutorial - ZetCode : PyQt4.5 introduced a new style API for working with signals and slots. QtCore.QObject.connect(button,

MySQL connection lost: system error: 110

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am trying to connect to my mySQL server through localhost on my dedicated server, but I keep getting the error: Lost connection to MySQL server at 'reading initial communication packet', system error: 110 CODE: <?php $link = mysql_connect('localhost', '****', '****'); if (!$link) { die('Could not connect: ' . mysql_error()); } I haven't configured a firewall, so all ports should be open. What do I need to do? I have already checked several other similar questions, but none of them solved my problem. I am not connecting remotely . UPDATE

Docker MYSQL &#039;[2002] Connection refused&#039;

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I was trying out Docker for the first time. Got a LEMP stack up and running, but I can't connect to the MYSQL Database. Not on my Symfony application, not on PHPMyAdmin. The applications are returning the following error code: An exception occured in driver: SQLSTATE[HY000] [2002] Connection refused This is my docker-compose.yml: nginx: image: tutum/nginx ports: - "80:80" links: - phpfpm volumes: - ./nginx/default:/etc/nginx/sites-available/default - ./nginx/default:/etc/nginx/sites-enabled/default - ./logs/nginx-error.log:/var/log/nginx

boost::asio::async_resolve Problem

匿名 (未验证) 提交于 2019-12-03 01:22:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm in the process of constructing a Socket class that uses boost::asio . To start with, I made a connect method that took a host and a port and resolved it to an IP address. This worked well, so I decided to look in to async_resolve . However, my callback always gets an error code of 995 (using the same destination host/port as when it worked synchronously). code : Function that starts the resolution: // resolve a host asynchronously template<typename ResolveHandler> void resolveHost(const String& _host, Port _port, ResolveHandler _handler)

How to connect to the site and retrieve data using java jsoup?

匿名 (未验证) 提交于 2019-12-03 01:20:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I know there's a lot of info out there but I couldn't find anything fitting to my problem. I want to gather data from a page I need to be logged in. Here is what I'm trying to do: I gather Cookies doing: Connection . Response res = Jsoup . connect ( "http://website.com/login?event=doLogin" ) . execute (); Map < String , String > cookies = res . cookies (); And then read the html for the hidden values: Document doc = Jsoup . connect ( "http://website.com/login?event=doLogin" ) . cookies ( cookies ) . get (); html = doc . toString ()

SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. The specified LocalDB instance does not exist

匿名 (未验证) 提交于 2019-12-03 01:20:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: EDIT: One important detail that I original left out (because I didn't know it was important) is that we were running these sites in full IIS, not from IIS Express. We're trying to setup local dev environments for Kentico CMS that will add our local machines to our current synchronization chain of Dev --> Staging --> Prod (so we'll wind up with Locals --> Dev --> Staging --> Prod). We copied our Dev DB to our local machines onto the (localdb)\v11.0 instance of SQL Server, but we're running into an issue on everyone's computers except mine.

Rstudio-server unable to connect to service and locale error

匿名 (未验证) 提交于 2019-12-03 01:20:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am having issues connecting to a rstudio server I just installed. Can you please let me know if you know how to solve this? Thanks! I just installed Rstudio server 0.99.485 64-bit on Ubuntu 13.10 (saucy) and am getting this error below: The error in /var/log/syslog says: ERROR Unexpected exception: locale::facet::Screateclocale name not valid; LOGGED FROM: int main(int, char* const*) /home/ubuntu/rstudio/src/cpp/session/SessionMain.cpp:3166 The symptom is that the web UI says it's "unable to connect to service" I have followed everything

Using Apache Cassandra In Coldfusion

匿名 (未验证) 提交于 2019-12-03 01:20:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm trying to use Apache Cassandra on a project I'm coding using Coldfusion. Since Coldfusion doesn't have a driver for Apache Cassandra and vice versa, I'm attempting to use Cassandra's Java drivers. I'm pretty much a Java newbie so please bear with me. I've managed to copy the necessary .jar files to /opt/railo/lib/ (I'm using Railo) and also managed to connect to Cassandra using Coldfusion using the code below. What I need help with is looping through the results returned by Cassandra when I run a query. I've included my very simple code