<?php<liu21st@gmail.com>declare (strict_types = 1);
namespace think\db\builder;
use think\db\Builder;
use think\db\Query;
class Oracle extends Builder
{
protected $selectSql = 'SELECT * FROM (SELECT thinkphp.*, rownum AS numrow FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%%ORDER%) thinkphp ) %LIMIT%%COMMENT%';
protected function parseLimit(Query $query, string $limit): string
{
$limitStr = '';
if (!empty($limit)) {
$limit = explode(',', $limit);
if (count($limit) > 1) {
$limitStr = "(numrow>" . $limit[0] . ") AND (numrow<=" . ($limit[0] + $limit[1]) . ")";
} else {
$limitStr = "(numrow>0 AND numrow<=" . $limit[0] . ")";
}
}
return $limitStr ? ' WHERE ' . $limitStr : '';
}
protected function parseLock(Query $query, $lock = false): string
{
if (!$lock) {
return '';
}
return ' FOR UPDATE NOWAIT ';
}
public function parseKey(Query $query, $key, bool $strict = false): string
{
$key = trim($key);
if (strpos($key, '->') && false === strpos($key, '(')) {
[$field, $name] = explode($key, '->');
$key = $field . '."' . $name . '"';
}
return $key;
}
protected function parseRand(Query $query): string
{
return 'DBMS_RANDOM.value';
}
}