I want to make an average of forex_askprice and forex_bidprice and insert into forex_midprice. like this
update eurusd_tickdata_2017 set forex_midprice=(forex_askprice+forex_bidprice)/2
But I met this error
2003 - Can't connect to MySQL server on 'localhost' (10061 "Unknown error")
时间: 759.205s'
There are around 40,000,000 rows in the table eurusd_tickdata_2017
it was the problem on your configuration settings of your database source like connection look up this video for your issue.
https://www.youtube.com/watch?v=ab25N34RO8w
It looks like your MySQL server is not installed. you can check steps & install from link - MySQL on Windows
Related
This might seem like a duplicate but trust me its not
So you guys are probably familiar with the error. The server doesnt start at the beginning and when i try to start it from Startup/Shutdown it gives this error.
Most of the people with this problem fixed it by starting MySQL server manually. Yeah but problem is mine was already working, i mean the server is on both in services and task manager. But for some reason im getting this error.
So my question is, how can i fix this?
- Checking server status...
- Trying to connect to MySQL...
- Can't connect to MySQL server on 'localhost' (10061) (2003)
- Assuming server is not running
Tried finding some logs but all says the same as above
Oh and i tried shutting the server down and opening again
Do you guys think that it might be happening because it is conflicting with some other sql program? I uninstalled everything related to sql but i might miss some stuff.
Programs i used to have are
-XAMP
-SQL Manager
-Microsoft SQL Server
-Microsoft SQL Server Management Studio
Like I said though, i uninstalled them all.
You need to check for all the mysql configuration files in /etc/mysql and check for any lines containing 127.0.0.1 and bound address or skip network and comment them.
Hope it helps.
It seems like for some reason it was having a conflict with other connection or port was just wrong on set up. I tried deleting all the connections i have and started a fresh one and it worked. Weird right? Here i was thinking when you uninstall MySQL, it woudl delete all the connections too.
I know this question has been asked on here before, but it seems like I've tried everything suggested in this answer and this answer, and still no luck. I'm trying to use MySQL Workbench 6.3 on a Windows 10 client, connecting to a Linux MySQL server hosted by GoDaddy/cPanel.
I can connect to the MySQL server with no problems, and usually I have time to run a query or two. Then, within a minute of inactivity between Workbench and the server, I'll run into Error 2013: Lost connection to MySQL server during query. This even happens when running the exact same query, back to back about a minute apart, as shown here (even when the original query is quick; only 0.03 seconds to run):
The same problem persists when I run select sleep(60) immediately upon connecting to the MySQL Server; the connection is usually lost between 30-40 seconds into the execution of the query:
I've checked the MySQL docs, but with no luck. I don't think the problem can be related to packet size, as others have suggested (since the same query will work and then fail later), and my Workbench timeout settings look okay:
Anyone have any idea? The only other thing I can think of is maybe the wait_timeout variable listed in the MySQL docs needs to be increased too, but I guess that would be somewhere on the server side (some have mention my.ini) and I can't find where any MySQL Server files live in the cPanel hosting admin interface. There's a MySQL online client provided through cPanel (phpMyAdmin I think), but it's not nearly as robust and is becoming cumbersome to use. Any help would be appreciated!
I was having the same problem, using MySQL Workbench 6.3.6 on Win10 to connect to a MySQL server on a shared hosting system (Arvixe).
In addition to to the problem described by the OP (lost connection to server), I was also getting an error when attempting to import data from a prior export (similar to what is described here):
Unhandled exception: Error querying security information: Error executing 'SELECT * FROM mysql.user WHERE user = '[username]' and Host = '[host]' ORDER BY User, Host' SELECT command denied to user '[username]'#'[host]' for table 'user' SQL Error: 1142
Apparently, a bug was introduced in MySQL Workbench 6.3.5 (bug report). From the bug report:
It appears the problem arise if connecting with an user with no privileges on the mysql schema.
In other words: users connecting to a shared hosting system.
The proposed solution is to uninstall MySQL Workbench 6.3.6, and install 6.3.4 instead. (6.3.4 can be found in the archives). This solution worked for me.
I am new to MySql workbench and never needed to use a lot of DBs before now.
I had an sql script containing all the DB creation, tables, population etc.
So using MySql workbench, I Reversed Engineering Using a Create Script.
Fine, it worked as I can see my tables.
Now I want perform some select over my data and I first need to create a new connection,
So I tried to Creating a MySQL Connection
but when I test the connection, I get the following error: "Failed to connect to MySql server on 127.0.0.1" (10061).
Question: what to use in the below menu (Connection/RemoteManagement/System Profile) or what else could be my problem?
my problem was that I didnt have a db, so I decided to use wampserver which includes everything and it's very simple to use.
I've a page which selects data from a table based on the primary key of the table
ex: SELECT * FROM table_name WHERE id=primary_key_value
As soon as I execute this from my CI page, I'm getting following error message
"Mysql server has gone away"
I searched in mysql reference manual, they are telling, its the cause of "wait_timeout" in configuration file. My configuration file has following settings
wait_timeout = 10
Could someone help me resolve this issue?
MySQL Server Has Gone Away - MySQL 5.5
link
Another one
When I first set up MySQL Server in Netbeans everything worked well. Now one day I think I accidentally clicked something or my computer lost battery life when I was connected to MySQL Server, and after these event(s) I have not been able to connect to MySQL Server. I do not know for sure if either of the above events would have any effect on connecting to a MySQL Server database.
Anyway since these events I have found that I cannot "start" or "connect" to a MySQL Server databse. I am doing this all through Netbeans IDE.
Here is a picture of how I try to connect to my databaseL:
This is what the error message says after I click connect:
Unable to connect. Cannot establish a connection to jdbc:mysql://localhost:3306/twitterdata using com.mysql.jdbc.Driver(Unknown database 'twitterdata'). The name of the database I am trying to connect to is twitterdata
How can I get reconnected to the MySQL Server database "twitterdata"?
I am not familiar with MySQL, databases, servers and I have no idea how to get reconnected. If there is any other helpful information that I should provide let me know.
What MySQL tools can I run to find my problem?
Why would the error message tell me that the database is unknown?
If I got to C:\ProgramData\MySQL\MySQL Server 5.5\data. There is a folder named twitterdata.
Here are the contents of that directory:
Please let me know if you need more information or if you have other suggestions that would help!
Thanks for all the help!
If you are using windows system and facing the error 'unable to connect localhost 3306' at the connection time. First you have to need start MySQL services in 2 steps:
Press "Windows key + R" write "services.msc"
And run as admin start MySQL service.
There can be three issues:
1) Either your server isn't even running. Open your command prompt and enter mysql
2)Let's say it is , can you check if it's connecting on the correct port.
Like in the url, you are using 3306,
Try following this post:
How do I find out my MySQL URL, host, port and username?
3) Can you check what if there are any credentials to the database you are connecting?
https://netbeans.org/kb/docs/ide/install-and-configure-mysql-server.html