Connect Python to mysql, and connect python to mysql
If you don't talk much about it, go directly to the Code:
#! /Usr/bin/python # coding: utf-8import MySQLdb # establish a connection with the mysql database con = MySQLdb. connect
PHP and MySQL cannot connect, the error is as follows:
Warning:mysql_connect () [Function.mysql-connect]: Client does not support authentication protocol requested by server; Consider upgrading MySQL client
In D:\XXXX\XXXX\apache-tomcat-8.0.5\webapps\Project\opendb.php on line 5
Could not connect:client does not the su
Test the PHP file
$link =mysql_connect (' localhost ', ' root ', ' zz ') or Die (Mysql_error ());
mysql_select_db (' test ') or Die (' no db ');
mysql_query (' SET NAMES utf8 ');
Echo 99;
?>
Error after run
Can ' t connect to the local MySQL server through socket '/tmp/mysql.sock '
But access to MySQL at the command line
[Root@localhost local]#
PHP file for test
$ Link = mysql_connect ('localhost', 'root', 'zz ') or die (mysql_error ());
Mysql_select_db ('test') or die ('no db ');
Mysql_query ('set NAMES utf8 ');
Echo 99;
?>
Error reported after running
Can't connect to local MySQL server through socket '/tmp/mysql. sock'
However, you can access mysql in the
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Step through ReadingMySQL Open source database, anyone can download the installation using. So how does the installed MySQL log in to connect to the MySQL database? This experience introduces several common methods of NithyaTools/Materials
PHP file for test$ Link = mysql_connect ('localhost', 'root', 'zz ') or die (mysql_error ());Mysql_select_db ('test') or die ('no db ');Mysql_query ('set NAMES utf8 ');Echo 99;?>Error reported after runningCan't connect to local MySQL server through socket '/tmp/mysql. sock'However, you can access mysql in the command
Tags: unable to connect with connect string:nodeid=0 mysql cluster localhost:1186The following error occurred while executing/ETC/INIT.D/NDBD--initial[Email protected] ~]#/ETC/INIT.D/NDBD--initialUnable to connect with connect string:nodeid=0,localhost:1186Retrying every 5 s
PhpMyAdmin attempts to connect to the MySQL server but the server rejects the connection--workaround
PhpMyAdmin attempts to connect to the MySQL server, but the server rejects the connection. You should check the host, user name, and password in the configuration file and confirm that the information
Tags: local www ror portal down window 5.6 View nbspWin:window 10 Mysql:mysql-5.6.10-win32 (MySQL 5.6 pure edition) Download FROM:QT Open Source Community http://www.qter.org/portal.php?mod=viewaid=10 (HTTPS://PAN.BAIDU.COM/S/1BOJQVJH) Error 2003 (HY000) with Mysql-5.6.10-win32 (MySQL 5.6 pure edition): Can ' t connect
When the probe is used for phpinfo testing after installation. The default localhost is found to be unable to connect to the MARIADB database, but can be connected through 127.0.0.1. Said it was very depressing. The first thought was: is the Hosts file problem on the Linux server.
So, echo "127.0.0.1 localhost" >>/etc/hosts sync.
The result is still the same, localhost cannot connect 127.0.0.1 can conne
Tags: python mysql databaseRecently a little bit of the Python mysqldb found Python could not connect to MySQL localhost and PHP and the command line is not a problem; asked the next group of friends they let me use 127.0.0.1 as host I tested it was successful but I still can't understand Why PHP and command line can but Python but not. And my previous Python con
As shown below, PHP connection MySQL error:
SQLSTATE[HY000] [2002] Can ' t connect to local MySQL server through socket ' MySQL ' (2)
The test code is as follows:" Solutions "Change host=localhost to host=127.0.0.1 !
Solution to connect
Mysql. method for connecting to MySQL with sock: the problem prompt is: you cannot use '/tmp/mysql. sock's solution to connecting to the server: the php Standard configuration is exactly through '/tmp/mysql. sock, but some mysql installation methods will be
%‘;+--------------------+-------+| Variable_name | Value |+--------------------+-------+| max_connect_errors | 100 || max_connections | 151 |+--------------------+-------+2 rows in set (0.00 sec)12. Modifying parametersmysql> set global max_connect_errors=1000;Query OK, 0 rows affected (0.00 sec)mysql> show variables like ‘max_connect%‘;+--------------------+-------+| Variable_name | Value |+--------------------+-------+| max_connect_
found! [FAILED]
Starting MySQL ......
CTRL + C cancel
At this time
[Root @ redhat var] # ps aux | grep mysql
As you can see, the system started another Mysql process, but after a while, it will disappear automatically. At this time, you can see the following errors when reading the log:
100708 15:26:52 [ERROR] Can't start server: Bind on TCP/IP port: Address a
Start MySQL Error:ERROR 2002 (HY000): Can ' t connect to local MySQL server through socket '/var/lib/mysql/mysql.sock ' (2)1. Check the/ETC/RC.D/INIT.D/MYSQLD status first to see if M y S Q L has been started.Also see if it is a permission issue.2. Determine if your mysql.sock is in that position,
Error reason: The socket file does not exist in the/var/lib/mysql directory.There are two ways to connect to a MySQL server: A TCP connection, a socket file connection. Through the socket file, start the MySQL service, the MySQL service will automatically generate a sock fil
One, the MySQL bin directory has a MySQLInstanceConfig.exe, run can create a DB instance, create an instance can also generate Windows service, set the service to start automaticallysecond, installed in the D-disk discuzz! opened after the above error, how should I handle? Winmysqladmin has been started, but there is a little red dot on the three-color treeif "error 2003:can ' t connect to
Linux environment. The location of all databases and user information can be viewed in (VIM/ETC/MY.CNF) [Datadir=/usr/local/mysql_data].
Cannot read the database information (reason: The permission has also changed during the move DataDir [Chown mysql:mysql-r DataDir]), DataDir is your storage path.
The code is as follows
Copy Code
ERROR 2002 (HY000): Can ' t connect to the local MySQ
Start MySQL Error:ERROR 2002 (HY000): Can ' t connect to local MySQL server through socket '/var/lib/mysql/mysql.sock ' (2)1. Check the/ETC/RC.D/INIT.D/MYSQLD status first to see if M y S Q L has been started.Also see if it is a permission issue.2. Determine if your mysql.sock is in that position,
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