I am creating desktop application in c# but i wont to use Online Database created in mysql.
String mysqlConnectionString = "Server=216.14.120.105;Database=xxx_keys;UID=xxx_root;Password=xxx;Port=3306";
MySqlConnection connection = new MySqlConnection(mysqlConnectionString);
connection.Open();
this is the code i am using but i got an error unable to access host.
where i am wrong and if you have any proper code or details then give me.
If this is a MySQL database in local server user "localhost" for server IP as georgi-it also told. But if this is an external database first try to open a telnet connection on dos-prompt to see if there is some firewall block or something like that:
telnet 216.14.120.105 3306
if you don't get an error message and see a blank page then it means you can reach mysql server
Related
I am trying to connect SQL Server from Client PC using the below-mentioned string, but it Is showing error as "Login failed for user 'sa'"
Tried string:
public static string connString = #"Data Source=(eg.IP)10.0.255.255,1433; Network Library=DBMSSOCN;Initial Catalog=InventoryProjects;User Id=sa;Password=password";
I have provided IP , userid and passward are correct.
Happening:
DB is not connected from Client PC.
Expectation:
But it should connect as I expected.
Can Anyone Please guiding me to proceed Further, because I am not very much familiar in C# and SQL
Points that spring to mind:
(eg.IP) should be removed from the connection string
Is IP address correct - may not be if it is dynamic?
Is the user id and password correct - use of sa user id may not be allowed?
Check - if you are able to run Microsoft SQL Server Management Studio to connect to the SQL database and check the connection string.
I have a C# Application which would access a MySQL server on another computer. I am trying to do it via IP. Here is my Connection String :
result = "server =66.45.233.226; user id=testcampuscrm; password =Daph$5656; database=testcampuscrm; convert zero datetime=true; ";
getting error this
Access denied for user 'testcampuscrm'#'66.45.232.178' (using
password: YES)
My code is anther hosting and mysql database anther hostig please help us. Thanks
There is multiple things you have to take into consideration while accessing mysql from another machine some them are -
Assuming you did write correct code
1.Change mysql config (my.ini) to receive packets from all IP
2.Add firewall Exception for port 3306 on machine where Mysql is Hosted
3.User name password is Correct and granted proper privileges.
PS:-Do not share server credentials on public forums
I'm trying to connect to a remote SQL Anywhere 10 database server using the following connection string but receiving a "Database Server Not Found" error.
OleDbConnection conn = new OleDbConnection("Provider=SAOLEDB.10;ENG=dental;DBN=dentserv;
LINKS=tcpip(host=192.168.1.100,PORT=2638);
Integrated Security = True; User ID = dba; PWD = sql");
Using the same code, I can connect to a local database that is setup the same way as the remote server I'm attempting to connect to without any issue:
OleDbConnection conn = new OleDbConnection("Provider=SAOLEDB.10;Data Source = dental;
Database=dental;Integrated Security = True; User ID = dba; PWD = sql");
I've added and removed multiple variables within the string to troubleshoot to see if there was anything missing (ENG instead of Data Source, with and without DBN, DSN, etc.), most seem to be interchangeable but always throwing the same error of no server.
For some additional information, I am able to connect to this server database using a different database management tool using the same port IP credentials with no issue. It's Database URL is: jdbc:sybase:Tds:192.168.1.100:2638?ServiceName=
Connection String:
DBN=DENTSERV;DSN=DENTAL;UID=DBA;PWD=SQL
Any thoughts? I've been working on this for awhile with no further progress. Any insight will be much appreciated!
The host (host=192.168.1.100); appears to be a private IP (IP for your local network), you cant use that for remote access you may use a Public IP also the server need to be configured for remote access.
I have recently installed MySQL on our local server, and I am attempting to connect to it using this connection string:
mySqlConnectionString = "server=192.168.1.254;database=dcim;uid=root;pwd=LlmD62jL;";
I have also tried adding the port as well:
mySqlConnectionString = "server=192.168.1.254:3306;database=dcim;uid=root;pwd=LlmD62jL;";
But I still keep getting the MySqlException:
1042 - Unable to connect to any of the specified MySQL Hosts.
I have tried with the Firewall active and de-activated, but nothing has worked so far. What's going on?
EDIT: I thought I should note that I used this connection string to connect to MySQL on the same machine, with no problems using localhost or 127.0.0.1.
NB: This is MySQL Server with .NET Framework connection.
First check mysql server is working or not.
Try to add port number of mysql in connection string(The port 3306 is the default MySql port).
Check spacing and Order of parameters in connection string.(Sometimes it matters base on my experience",) )
Here's the basic format you could follow:
Server=ServerAddress; Port=1234; Database=DataBase; Uid=Username; Pwd=Password;
Also try to read this article its useful for connection strings. MySQL connection strings
Hope it helps. ",)
What connection string should I use if SSMS connects to it using simply machine name, without instance name?
I mean it connects using the following string: PCName
I used to connect using PCName/SQLExpress. I cannot set correct connection string in my app in order to connect app to database on this machine.
How can I check what data source I should use? I've checked in Sql Server configuration that server instance named as SQLEXPRESS.
So I tried data source as:
.\SQLEXPRESS
PCName\SQLEXPRESS
.
I'm trying to connect to a service-based database, located in my app folder. So I'm using the following connection string:
data source=PCName;attachdbfilename=|DataDirectory|\spareparts.mdf;integrated security=true;user instance=true;multipleactiveresultsets=true;App=EntityFramework;
If SSMS connects via PCName then your application should be able to use Data Source=PCName. However it depends on whether your application is on the same machine as SSMS or not. If on a different machine it might not be able to connect for a variety of reasons. We can't speculate what the problem might be if all you do to describe the issue is "It won't connect" - what does that mean? Do you get an error message? If so, what is it? Make sure:
SQL Browser service is started
TCP/IP is enabled
Add Network=DBMSSOCN; to the connection string
You've also tried the IP address in addition to PCName
Firewall isn't blocking the SQL Server port