linux c 数据库编程

#include <mysql.h>
#include <stdio.h>

int main() {
    MYSQL *conn;
    MYSQL_RES *res;
    MYSQL_ROW row;

    char *server = "localhost";
    char *user = "root";
    char *password = "your_password";
    char *database = "your_database";

    conn = mysql_init(NULL);
    if (!mysql_real_connect(conn, server, user, password, database, 0, NULL, 0)) {
        fprintf(stderr, "%s\n", mysql_error(conn));
        return 1;
    }

    // 执行SQL查询...

    mysql_close(conn);
    return 0;
}

mysql_stmt *stmt;
const char *query = "SELECT * FROM users WHERE username = ? AND password = ?";
stmt = mysql_stmt_init(conn);
mysql_stmt_prepare(stmt, query, strlen(query));

MYSQL_BIND bind[2];
memset(bind, 0, sizeof(bind));

bind[0].buffer_type = MYSQL_TYPE_STRING;
bind[0].buffer = (char *)username;
bind[0].buffer_length = strlen(username);

bind[1].buffer_type = MYSQL_TYPE_STRING;
bind[1].buffer = (char *)password;
bind[1].buffer_length = strlen(password);

mysql_stmt_bind_param(stmt, bind);
mysql_stmt_execute(stmt);