医院科研管理系统

CREATE TABLE research_results (

id INT AUTO_INCREMENT PRIMARY KEY,

title VARCHAR(255) NOT NULL,

author VARCHAR(100) NOT NULL,

category VARCHAR(50),

publication_date DATE,

impact_factor FLOAT DEFAULT 0.0

);

$servername = "localhost";

$username = "root";

$password = "";

$dbname = "research_system";

// 创建连接

$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接

if ($conn->connect_error) {

die("连接失败: " . $conn->connect_error);

}

$title = $_POST['title'];

$author = $_POST['author'];

$category = $_POST['category'];

$publication_date = $_POST['publication_date'];

$impact_factor = $_POST['impact_factor'];

$sql = "INSERT INTO research_results (title, author, category, publication_date, impact_factor)

VALUES ('$title', '$author', '$category', '$publication_date', $impact_factor)";

if ($conn->query($sql) === TRUE) {

echo "新记录插入成功";

} else {

echo "Error: " . $sql . "
" . $conn->error;

}

$conn->close();

?>

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {

die("连接失败: " . $conn->connect_error);

}

$sql = "SELECT author, COUNT(*) AS total_count, SUM(impact_factor) AS total_impact FROM research_results GROUP BY author ORDER BY total_impact DESC LIMIT 10";

$result = $conn->query($sql);

if ($result->num_rows > 0) {

while($row = $result->fetch_assoc()) {

echo "作者: " . $row["author"] . " | 总成果数: " . $row["total_count"] . " | 总影响因子: " . $row["total_impact"] . "
";

}

} else {

echo "未找到相关数据";

}

$conn->close();

?>