connection

问题 Case : opening as read-only an excel file (.xlsx) using adodb.connection inside a VBA script in Excel 2013 on Windows 7 64bit. Problem : the excel file seems to be opened for editing even setting the Mode parameter as Read in the connection string of adodb in order to open the connection in read-only mode: szConnect = "Provider=Microsoft.ACE.OLEDB.12.0;" & _ "Data Source=" & SourceFile & ";" & _ "Mode=Read;" & _ "Extended Properties=""Excel 12.0;HDR=Yes;"";" Test : I set a break point after

问题 I have this error in my code and have checked and edited it thoroughly, yet I still get same issue. I also use multiple resultSet and Statements yet same error occurs. Below is the error I get: "Database Connected with Current Date 20130221 java.sql.SQLException: ResultSet is closed at sun.jdbc.odbc.JdbcOdbcResultSet.checkOpen(Unknown Source) at sun.jdbc.odbc.JdbcOdbcResultSet.next(Unknown Source) at UNSUB.main(UNSUB.java:78)" Press any key to continue . . . Please What could be the reason? I

问题 I would like to create a parallel process which gets Data from a Database. I am using a JDBC connector which works quite fine if i run my program not in parallel: conn = jaydebeapi.connect("com.teradata.jdbc.TeraDriver", "jdbc:teradata://DBNAME"+str(i)+"/LOGMECH=LDAP", ["LIB_NAME", "PWD"], "/home/user/TeraJDBC/terajdbc4.jar:/home/user/TeraJDBC/tdgssconfig.jar", ) curs = conn.cursor() However I want to fasten that process and so I am using: from joblib import Parallel, delayed, parallel

问题 I just heard about amazon rds and MySQL Workbench today from my partner for my group project, so I'm not very familiar with them. My partner has created a host account on amazon rds for our database, and I am suppose to help create table and make sql queries. However, I'm having no luck connecting to the database through MySQL workbench. The error message I received is "Unknown MySQL server host '*host_address*'. I have tried adding port 3306 to my firewall as suggested by a blogger, but that

问题 Following this topic Can an Android App connect directly to an online mysql database I'm trying to approach Android and Database on my studies; The things is, I would like to know if I can or may use a local database based on USBWebserver to connect it through the app inside AVD? 回答1: Please follow this simple tutorial here 来源： https://stackoverflow.com/questions/22558489/using-local-database-with-android-virtual-device

问题 I am using pocket printer Bixolon SPP-R200 for printing by Bluetooth in Android. I have tested my application on HTC (with Android 2.3.7) and Asus (with Android 4.0.3) and they work fine with printer. But I have problem with Samsung Galaxy tabs P3100 and P5100 (with Android 4.0.3) in connection. The problem is when I use method connect() it returns 401 error means: BXL_ERR_OPEN -> Port connection failure and Android pairing window is opened. I enter the pin again but the problem is still

问题 I want to connect to a SQLite database. Please show me example code which WORKS. Also I want to link datagridview with the database.I use this code but it doesn't work: private DataTable dt; public Form1() { InitializeComponent(); this.dt = new DataTable(); } private SQLiteConnection SQLiteConnection; private void DataClass() { SQLiteConnection = new SQLiteConnection("Data Source=PasswordManager.s3db;Version=3;"); } private void GetData() { SQLiteDataAdapter DataAdapter; try { SQLiteCommand

问题 From what I understand, the big benefit of HTML5's shared web workers is that they can accept multiple connections in a single separate thread of execution. My question is: has anyone gotten multiple connections with a SharedWorker to work as a single thread with Google Chrome? I'm using latest version 12.0.742.112. Demo: http://demos.zulius.com/html5/sharedworker Source (in case demo is down): index.html, sharedworker.js The demo establishes 2 separate event listeners. The expected output is

问题 I have a PHP application that I have been having some problems with, some pages take a very long time to load. After a couple of hours I have figured out the problem, but I have no idea how to fix it. The problem seems to be with the header Connection: keep-alive . I used a Firefox plugin called "Tamper Data" which allows you to "tamper" with the headers and stuff. Once I used that tool to change the connection header to Connection: close the delay on some pages stopped. How, in PHP, can I

问题 This question already has answers here : Check if device is plugged in (9 answers) Closed 6 years ago . I want to detect is anything like charger or USB is connected to the charger port of a device.Is there anyway to achieve this? I tried this link .It works when charger connected and disconnected.Is it works in all devices? Thanks in Advance 回答1: Yes, you can monitor battery status via intent broadcasts. Example of a battery monitor: import android.content.BroadcastReceiver; import android