mysql Ver 14.14 Distrib 5.5.15, for Win32 (x86) Connection id: 1 Current database: Current user: root@localhost SSL: Not in use Using delimiter: ; Server version: 5.5.15 MySQL Community Server (GPL) Protocol version: 10 Connection: localhost via TCP/IP Server characterset: utf8 Db charac...
首先要知道数据库连接(Connection对象)的创建和关闭是非常浪费系统资源的,如果是使用常规的数据库连接方式来操作数据库,当用户变多时,每次访问数据库都要创建大量的Connnection对象,使用完成后关闭连接。这一过程频繁地使用时,会导致程序性能急剧下降。如果项目存在频繁访问数据库的操作,则应该使用数据库连接池来管理数据库...
MYSQL_RES *res_ptr;/*指向查询结果的指针*/ MYSQL_FIELD *field;/*字段结构指针*/ MYSQL_ROW result_row;/*按行返回的查询信息*/ introw, column;/*查询返回的行数和列数*/ inti, j; /*初始化mysql连接my_connection*/ mysql_init(&my_connection); /*建立mysql连接*/ if(NULL != mysql_real_con...
mysql_close ( conn ); return 0; } running the program gives me the error: SSL connection error: unknown error number I checked that : 1- I can connect fine using the ODBC DSN from the guest 2- the server has no SSL configured by default, the server status command tells me...
MYSQL *mysql_real_connect(MYSQL *connection,//指向已经被mysql_init初始化过的结构constchar*server_host,//可以是主机名,也可以是IP地址(本地可以是localhost)constchar*sql_user_name,//使用者constchar*sql_password,//使用者密码(密码会再被传输的过程中加密)constchar*db_name,//数据库名字unsignedintport...
以下是一个使用Python连接MySQL数据库的示例代码: 代码语言:txt 复制 import mysql.connector # 配置数据库连接参数 config = { 'host': 'localhost', 'port': 3306, 'database': 'your_database', 'user': 'your_username', 'password': 'your_password' } try: # 建立连接 connection = mysql.connecto...
step3:建立连接(MySqlConnection类)using MySql.Data.MySqlClient; public MySqlConnection connect() { String connetStr = "server=127.0.0.1;port=3306;user=root;password=a123456.; database=thzdb;"; MySqlConnection con = new MySqlConnection(connetStr); con.Open(); Console.WriteLine("数据库连接...
MySQL连接串(Connection String)基础概念 MySQL连接串是用于建立与MySQL数据库服务器通信的字符串,它包含了连接所需的关键信息,如服务器地址、端口、数据库名称、用户名和密码等。 连接串的优势 简化配置:通过一个字符串即可配置所有必要的连接参数,便于管理和维护。 灵活性:可以根据需要轻松更改连接参数,如更换服务器...
/* Id for connection in server */unsignedlongpacket_length;unsignedintport;unsignedlongclient_flag,server_capabilities;unsignedintprotocol_version;unsignedintfield_count;unsignedintserver_status;unsignedintserver_language;unsignedintwarning_count;structst_mysql_optionsoptions;enummysql_statusstatus;my_boolfree...
Subject Views Written By Posted Mysql Connection C/C++ (libmysql) on ARM 5345 Enrico Sola October 25, 2013 02:03PM Re: Mysql Connection C/C++ (libmysql) on ARM 2397 anawat anawat January 07, 2014 12:40AM Sorry, you can't reply to this topic. It has been closed....