I have installed a local server Xampp, which is running mySQL database in Windows. I created a Database on it with one table. The thing is I cannot get a connection to the database when I use the dbExpress TSQLConnection component. When I set the properties as follows:
ConnectionName = MYSQLConnection
Driver = MySQL
Database = databaseName
HostName = localhost
password =
UserName = root
When I change the connected property to true, I get the following error:
Borland.Data.TDBXError: DBX Error: Driver could not be properly initialized. Client library may be missing, not installed properly, of the wrong version, or the driver may be missing from the system path
I have tried making a connection to the database using the Data Explorer, but I still get the above error. I do not know what I'm missing or doing wrong.
Im using Delphi-XE2.
with mySQL on the server: MySQL client version: mysqlnd 5.0.7-dev - 091210 - $Revision: 304625 $.
I have also tried using an ADO connection, but I do not know how to set the connection string.
I'm still a noob and just want to learn how to make a connection to a mySQL database running on a web server. I cannot afford to buy any components.
Try this!
Did some google Fu - and stumpled upon this link : http://wiltonsoftware.com/posts/view/getting-embarcadero-dbexpress-mysql-working-dbx-error-driver-not-initialized
That seems to fit your needs.
My previous answer was no help .. hope the new one is better.
Old answer:
Make sure you have Data.DBXMySQL in your uses clause.
OK. I'll try a different approach.
Is it working if you setup the connection in the DataExplorer?
If not - then it's not a problem with the uses clause.
(and you obviously have tried that - sry . must be tired :-))
Otherwise a unit could be like this.
unit Unit1;
interface
uses // <-- Uses normally goes right after interface .... (you probably already have one)
Data.DBXMySql;
implementation
end.
Related
My Ansible/Rundeck host is an Ubuntu 20.04 LTS system. I installed Ansible to tinker and then installed Rundeck. Once I was able to get the two talking and working properly (in my mind), I thought it would be best to move Rundeck to a production level DB engine instead of H2. I installed MySQL on the same host and setup the DB and the DB user as directed in the Rundeck docs. I then modified the RD properties file as the same document instructs but I keep getting a failure to connect to the database.
First it was this error:
WARN internal.JdbcEnvironmentInitiator - HHH000341: Could not obtain connection metadata : Could not connect to address=(host=10.10.140.23)(port=3306)(type=master) : Socket fail to connect to host:10.10.140.23, port:3306. Connection refused (Connection refused)
So then I researched the issue and it suggested to validate the user account in MySQL, grants, access, etc. - It all works from a command line testing in MySQL.
I read in one of my searches that some people had luck with removing the useSSL=false or setting it to true. That led to my next error of:
WARN internal.JdbcEnvironmentInitiator - HHH000341: Could not obtain connection metadata : Could not connect to address=(host=localhost)(port=3306)(type=master) : RSA public key is not available client side (option serverRsaPublicKeyFile)
During my research on this error, I read that I needed to add a property to allow the retrieval of the RSA keys, and I did but it didn't change a thing.
I then downloaded the Oracle MySQL jdbc driver and placed it in the var/lib/rundeck/lib folder and changed the driver class name in the properties file and then I received my next error of
WARN internal.JdbcEnvironmentInitiator - HHH000341: Could not obtain connection metadata : Could not connect to address=(host=127.0.0.1)(port=3306)(type=master) : (conn=355) Access denied for user 'sa'#'localhost' (using password: YES)
Current charset is UTF-8. If password has been set using other charset, consider using option 'passwordCharacterEncoding'
when I attempted to run Rundeck.
At this point I am back on H2 and I am too much of a Linux novice to understand what the issue may be. Can anyone kindly point me in a direction that helps as the Rundeck docks for using a MySQL DB seem to either be old or missing some content as a lot of the searches I have made on trying to resolve the issue directs me to perform things slight differently or all new commands that the Rundeck docs don't even mention.
I've fixed same issue stopping the Rundeck instance, later adding the following config on the rundeck-config.properties file (at /etc/rundeck path, check this):
# works with allowPublicKeyRetrieval=true
dataSource.url = jdbc:mysql://mysql_server_ip/rundeck?autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true
dataSource.username=rundeckuser
dataSource.password=your_password
dataSource.driverClassName=com.mysql.cj.jdbc.Driver
# to store projects on backend
rundeck.projectsStorageType=db
Next, flushing the connections on the database side with mysqladmin flush-hosts -u root -p.
Now, starting your Rundeck service, you can check that is using MySQL 8 as a data source for your projects.
EDIT: On the MySQL side, make sure that you've created the user properly, I followed these steps:
CREATE DATABASE rundeck;
CREATE USER 'rundeckuser'#'%' IDENTIFIED BY 'P4ssw0rd';
GRANT ALL PRIVILEGES ON rundeck.* TO 'rundeckuser'#'%';
exit;
Also check how MySQL 8 is storing the user's passwords.
I am working with ServiceStack evaluating the ORMLite provider with MySql for use on a.NET Core 1.1 project. I am running into a curious issue I am not sure what the problem is and looking for some guidance on how to troubleshoot this further or possible fixes.
I am running the .Net Core app in a standard docker container and MySql in the standard MySql container. I have been able to successfully run MySQL and connect with the workbench tool.
What I cannot do is get the executing code of the web application to successfully connect to the MySQL container. I have tried various combinations. Those where the IP Address or hostname were wrong I received a meaningful error saying the host was unknown.
But under scenarios where server name or IP address values that are used that are appropriate for the MySQL container, I receive a generic MySQLException error. The username and password are correct. I have even used the root account to ensure that there aren't any potential security hangups.
Here is a code snippet of where I am attempting to connect. This setup was working well using a local SQL db file, there is just something I am missing with either the configuration of Docker or MySQL that I haven't been able to isolate.
const string connectionString = "Server=3400f112c973:3306;Database=ServiceDB;Uid=root;Pwd=my-secret-pw;";
container.Register<IDbConnectionFactory>(
new OrmLiteConnectionFactory(connectionString, MySqlDialect.Provider ));
using (var db = container.Resolve<IDbConnectionFactory>().Open())
{
if (db.CreateTableIfNotExists<TypeExample>())
{
//Add seed data
}
}
I have figured out my scenario.
In the MySQL Connection string, if you are using a non-standard port, you need to use the port parameter to specify the different port and omit the port entirely if using the standard port.
My issue was I was always using "Server=servername:port;" which is an incorrect format and should have been "Server=servername;Port=port;" in the cases where I was using a nonstandard port number, otherwise Port= can be omitted.
How do I connect my PowerBuilder to MySQL?
First I would like to use Database Painter to conenct to my local MySQL Database so I can create my datawindows.
Then I would like to make a DSNLESS connection so I can just add .ini and ProfileString my connection.
To create a DSN-less connection, I pulled this syntax from http://www.connectionstrings.com/
ODBC:
SQLCA.DBMS = "ODBC"
SQLCA.DBParm = "Driver={MySQL ODBC 5.1 Driver};Server=myServerAddress;Database=myDataBase;User=myUsername;Password=myPassword;Option=3;"
Note that you might have to tweak the version number (5.1) to match the version you download.
// Profile Transporter3
SQLCA.DBMS = "JDBC"
SQLCA.LogPass = "tss"
SQLCA.LogId = "root"
SQLCA.AutoCommit = False
SQLCA.DBParm = "Driver='com.mysql.jdbc.Driver',URL='jdbc:mysql://localhost:3306/mydb'"
the only thing is you need to set classpath of the jar file for which i posted in Linked in please refer
now it connect to MySQL the big problem arises is Ignore space after Function name
I dont understand how to set option for this in JDBC for odbc there is option. i go through documentation
of connector J but no such option. This problem arises only for PowerBuilder so i request you if you know the solution please provide it.
i resolve this issue mysql option -i or --ignore-spaces is going to work so i set that option in configuration files i.e. my.ini
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,IGNORE_SPACE"
stop MySQL service and then started it works smoothly
You have to configurare db profile like servername, database, etc., . In this preview tabpage check the connection and copy &paster the commands in application open event.
By PB team
I'm trying to connect my Zend application to a MySQL process running on a shared server. The basic config should be fine, as it was working with a LAMP server.
The problem is, I need to specify the host as being the an sql process: myprocess.db, rather than localhost:
resources.db.adapter = PDO_MYSQL
resources.db.params.charset = "utf8"
resources.db.params.host = mysqlprocess.db
resources.db.params.username = username
resources.db.params.password = password
resources.db.params.dbname = dbname
However, when I do, I get this:
Warning: mysql_real_escape_string() [function.mysql-real-escape-string]:
Can't connect to local MySQL server through socket 'please_see_the_faq' (2)
in /f5/metamusic/protected/application/controllers/SearchController.php on line 418
The host I'm using is NearlyFreeSpeech, and this message is apparently triggered when attempting to connect to SQL without specifying the process you're interested in:
http://faq.nearlyfreespeech.net/section/mysql/mysqllocalhost#mysqllocalhost
Using the same details and mysql_connect($server, $user) works without issue, so it looks like Zend is somehow not using the correct host parameter.
Any ideas what's going wrong? Any help would be much appreciated.
try using
resources.db.params.host = myprocess.db
The host in the db config has to point to a database server. localhost or 127.0.0.1 are references for the database being on the same server as the application. In a hosting environment you usually have the server on a remote server so the host has to be either an IP address or a DNS name for the host.
Check the second question in the FAQ.
Update
My bad, that is about DSN and not DNS. Still, that's where the problem is. The resources.db.params.host directive in the config expects a reference to the database server and myprocess.db is neither a DNS name nor a IP address. You probably need localhost for that but then you will still be missing the DSN. I currently don't see how you set a DSN in PHP for MySQL and therefore Zend. Have a further look at this MYSQL DSN.
Update 2
You are correct with the socket and that this is related. I think the problem is the Zend PDO_MYSQL adapter. Zend funnels this directly to PDO(). There are this additional config options I mentioned above (MYSQL DSN) which is missing in the Zend implementation. Although the PDO_MYSQL adapter overrides the connect() method it does not look for this options.
However, there is another adapter mysqli which connects directly to MySQL and actually the same way as your test with mysql_connect(). It uses mysqli_real_connect() instead and that connection might understand the process name for the socket. So, you can try the following in your config:
resources.db.adapter = "mysqli"
I'm posting my eventual solution here for future reference:
It turns out, the database connection was already working. However, my call to mysql_real_escape_string() was failing, and the resulting error message suggested that the entire database connection had failed.
The solution was simply to replace the above call with Zend_DB_Adapter's quote(), and suddenly everything works.
Why this works on a LAMP machine and not a shared server, I have no idea. For now though, this is a good enough solution!
I am coding an application for my company wherein i want to parse the results of a mysql query and display them in my application but i am facing a problem conecting to the database.
the ip address of the server is : 172.30.192.20
and before i can ping it i have to add route on my pc something like this
route add 172.30.192.0 mask 255.255.255.0 172.30.192.56
where 172.30.192.56 is the gateway
Now whenever i try to connect 172.30.192.20 which is where the sql server is running my appplication instead connects to 172.30.192.56
i am coding the application in delphi and have used TmySQL
After this didnt workout i tried an application called SQLwave. I just entered the server ip address and was able to connect to the database without any problems. it seems sqlwave uses mydac which is why even i tried using it but using the default connection options and setting i was still not able to connect. it seems sqlwave uses a custom connection using mydac
i just want to know whats going wrong with my connection
I tend to use the ADO Components. Here's a small (simple) example you may want to try...
Driver={MySQL ODBC 5.1 Driver};Server=localhost;Database=myDataBase; User=myUsername;Password=myPassword;Option=3;
Above is a Connection String, using the MySQL ODBC 5.1 driver (available on the MySQL website if you don't already have it). Modify this to reflect your server address, database name, username and password. Paste this into the "ConnectionString" property of a TADOQuery.
Set this ADOQuery object's SQL text to something like
SELECT * FROM mytable
Where "mytable" is the name of an existing table in your database.
Now change the ADOQuery object's Active property to True.... see what happens.
As Mason suggested, you may simply be experiencing a connectivity issue, still you never know, my method may come in handy!
Good luck!