MYSQL_ROW row;constchar*server ="localhost";constchar*user ="myname";constchar*password ="mypwd";// 替换为你的MySQL myname密码constchar*database ="testdb";// 替换为你的数据库名charquery[256];// 初始化MySQL连接conn = mysql_i
if (!mysql_real_connect(conn, server,user, password, database, 0, NULL, 0)) { fprintf(stderr, "%s\n", mysql_error(conn)); exit(1); } if (mysql_query(conn, "show tables")) { fprintf(stderr, "%s\n", mysql_error(conn)); exit(1); } res = mysql_use_result(conn); printf...
在MySQL Connector/C库中,可以使用mysql_query()函数执行SQL语句。例如,下面的代码将从名为test_table的表中选择所有行: “`c if (mysql_query(&mysql, “SELECT * FROM test_table”)) { //查询失败 } MYSQL_RES *result_set = mysql_store_result(&mysql); if (result_set == NULL) { //无结果...
mysql_close(conn); 1. 这样就完成了连接和查询MySQL的整个流程。 类图 下面是连接和查询MySQL的类图示例: LinuxCMySQL- conn: MYSQL+connect()+query(sql: const char*)+processResult()+close() 在上面的类图中,我们定义了一个名为LinuxCMySQL的类,该类封装了连接和查询MySQL的相关操作,具体实现可以参考上面...
mysql_init(&my_connecyion); if(mysql_real_connect(&my_connecyion,"localhost","rick","rick","foo",0,NULL,0)) { printf("Connection success\n"); //执行SQL语句 res = mysql_query(&my_connecyion,"INSERT INTO children(fname,age) VALUES('Ann',3)"); if(!res) printf("In...
int mysql_query(MYSQL *connection, const char 1. 函数接收参数连接句柄和字符串形式的有效SQL语句(没有结束的分号,这与MySQL工具不同)。如果成功,它返回0。 如果包含二进制数据的查询,要使用mysql_real_query。 检查受查询影响的行数: my_ulonglong mysql_affected_rows(MYSQL *connection); ...
than mysql_query() because it does not call strlen() on the statement string. */ int executesql( const char * sql ) { if( mysql_real_query( pMysqlConn, sql, strlen(sql) ) ) return -1; return 0; } /* init the mysql connection. */ int init_mysql() { pMysqlConn = mysql_...
mysql_real_connect(&mysql, HOST, USERNAME, PASSWORD, DATABASE, 0, NULL, 0)) { printf("Connection failed,%s\n",mysql_error(&mysql)); } mysql_query(&mysql, "set names utf8"); if(!mysql_query(&mysql,"SELECT * FROM area")) { result = mysql_store_result(&mysql); ...
支持中文*/ mysql_query(&my_connection, "set names utf8"); res = mysql_query(&my_connection, sql); if (res) { /*现在就代表执行失败了*/ printf("Error:mysql_query !\n"); /*不要忘了关闭连接*/ mysql_close(&my_connection); } else { /*现在就代表执行成功了*/ /*mysql_affected_row...
datadir=C:/softwares/mysql-5.7.35-winx64/data character-set-server=utf8mb4 sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' bind-address=0.0.0.0 max_allowed_packet=102400M ...