PHPおよびOracleデータベースのビッグデータ処理および最適化スキル

// 假设$data为待插入的数据数组
$connection = oci_connect('username', 'password', 'database');
$statement = oci_parse($connection, 'INSERT INTO table_name (column1, column2) VALUES (:column1, :column2)');
oci_bind_by_name($statement, ':column1', $column1);
oci_bind_by_name($statement, ':column2', $column2);

foreach ($data as $row) {
    $column1 = $row['column1'];
    $column2 = $row['column2'];
    oci_execute($statement, OCI_DEFAULT);
}

oci_commit($connection);
oci_close($connection);

// 假设$param为查询参数
$connection = oci_connect('username', 'password', 'database');
$statement = oci_parse($connection, 'SELECT * FROM table_name WHERE column = :column');
oci_bind_by_name($statement, ':column', $column);

oci_execute($statement);
while ($row = oci_fetch_array($statement)) {
    // 处理查询结果
}

oci_close($connection);

$connection = oci_connect('username', 'password', 'database');
$statement = oci_parse($connection, 'CREATE INDEX index_name ON table_name (column)');

oci_execute($statement);

oci_close($connection);

$connection = oci_connect('username', 'password', 'database');
$rowsPerpage = 100; // 每页查询的数据量
$page = 1; // 当前页数

$offset = ($page - 1) * $rowsPerpage;
$query = "SELECT * FROM ( SELECT a.*, ROWNUM rnum FROM ( SELECT * FROM table_name ) a WHERE ROWNUM <= :end_offset ) WHERE rnum  > :start_offset";

$statement = oci_parse($connection, $query);
oci_bind_by_name($statement, ':end_offset', $offset + $rowsPerpage);
oci_bind_by_name($statement, ':start_offset', $offset);

oci_execute($statement);
while ($row = oci_fetch_array($statement)) {
    // 处理查询结果
}

oci_close($connection);