import pymysql # 创建链接 conn = pymysql.connect(host="localhost", port=3306, user="root", passwd="root", charset="utf8") # 这样写可以直接进入到数据库shool中 # conn = pymysql.connect(host="localhost", port=3306, user="roo
Connector/Python supports authentication plugins available as of MySQL 8.0, including the preferred caching_sha2_password authentication plugin. The deprecated mysql_native_password plugin is supported, but it is disabled by default as of MySQL Server 8.4.0 and removed as of MySQL Server 9.0.0. ...
9.5 Connector/Python Connection Pooling Simple connection pooling is supported that has these characteristics: The mysql.connector.pooling module implements pooling. A pool opens a number of connections and handles thread safety when providing connections to requesters. The size of a connection pool ...
OK_Packet和ERR_Packet是 MySQL 服务端通用的响应包。 OK_Packet MySQL 5.7.5 版本以后,OK_Packet还包含了EOF_Packet(用来显示警告和状态信息)。区分OK_Packet和EOF_Packet: •OK: header = 0x00 and length of packet > 7•EOF: header = 0xfe and length of packet < 9 MySQL 5.7.5 版本之前,EOF...
cnx = mysql.connector.connect(pool_name = "mypool", pool_size = 3) cnx = mysql.connector.connect(pool_name = "mypool", **dbconfig) cnx = mysql.connector.connect(pool_name = "mypool") Pooled connections obtained by callingconnect()with a pool-related argument have a class ofPooledM...
I've tried changing firewall settings, I've tried changing python versions and i've removed and re-installed mysql-connector. I've seen variations of this question pop up but nobody seems to have provided an answer, or confirmed the answer works. I'm looking for suggestions/advice on how...
A simple but not simple mysql connection pool based onPyMySQL. The problem to solve While using pymysql with python multithreading, generally we will face the questions: It can't share a connection created by main thread with all sub-threads. It will result in the following error: ...
学习了:https://stackoverflow.com/questions/35817479/python-pymysql-err-operationalerror-2013-lost-connection-to-mysql-server-dur sql ="insert into aaa(id, a, b, c, d) values(%s,%s,%s,%s,%s)"whileTrue:try: with connect.cursor() as cursor:#获取游标cursor.execute(sql, (id01, a, b[0...
学习了:https://stackoverflow.com/questions/35817479/python-pymysql-err-operationalerror-2013-lost-connection-to-mysql-server-dur sql ="insert into aaa(id, a, b, c, d) values(%s,%s,%s,%s,%s)"whileTrue:try: with connect.cursor() as cursor:#获取游标cursor.execute(sql, (id01, a, b[0...
Django数据库连接池(mysql) 关于在python项目中使用连接池的问题 由于django没有连接池的功能,当并发量大时可能造成数据库连接超限。 DBUtils 是一套用于管理数据库连接池的Python包,为高频度高并发的数据库访问提供更好的性能,可以自动管理连接对象的创建和释放。并允许对非线程安全的数据库接口进行线程安全包装。