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<?php |
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namespace Lagdo\DbAdmin\Driver\MySql\Db; |
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use Lagdo\DbAdmin\Driver\Db\Server as AbstractServer; |
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use Lagdo\DbAdmin\Driver\Db\StatementInterface; |
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use function array_key_exists; |
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use function is_a; |
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use function intval; |
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use function preg_match; |
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class Server extends AbstractServer |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function databases(bool $flush) |
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{ |
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// !!! Caching and slow query handling are temporarily disabled !!! |
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$query = $this->driver->minVersion(5) ? |
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'SELECT SCHEMA_NAME FROM information_schema.SCHEMATA ORDER BY SCHEMA_NAME' : |
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'SHOW DATABASES'; |
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return $this->driver->values($query); |
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// SHOW DATABASES can take a very long time so it is cached |
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// $databases = get_session('dbs'); |
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// if ($databases === null) { |
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// $query = ($this->driver->minVersion(5) |
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// ? 'SELECT SCHEMA_NAME FROM information_schema.SCHEMATA ORDER BY SCHEMA_NAME' |
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// : 'SHOW DATABASES' |
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// ); // SHOW DATABASES can be disabled by skip_show_database |
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// $databases = ($flush ? slow_query($query) : $this->driver->values($query)); |
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// restart_session(); |
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// set_session('dbs', $databases); |
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// stop_session(); |
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// } |
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// return $databases; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function databaseSize(string $database) |
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{ |
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$statement = $this->driver->execute('SELECT SUM(data_length + index_length) ' . |
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'FROM information_schema.tables where table_schema=' . $this->driver->quote($database)); |
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if (is_a($statement, StatementInterface::class) && ($row = $statement->fetchRow())) { |
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return intval($row[0]); |
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} |
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return 0; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function databaseCollation(string $database, array $collations) |
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{ |
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$collation = null; |
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$create = $this->driver->result('SHOW CREATE DATABASE ' . $this->driver->escapeId($database), 1); |
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if (preg_match('~ COLLATE ([^ ]+)~', $create, $match)) { |
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$collation = $match[1]; |
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} elseif (preg_match('~ CHARACTER SET ([^ ]+)~', $create, $match)) { |
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// default collation |
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$collation = $collations[$match[1]][-1]; |
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} |
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return $collation; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function engines() |
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{ |
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$engines = []; |
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foreach ($this->driver->rows('SHOW ENGINES') as $row) { |
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if (preg_match('~YES|DEFAULT~', $row['Support'])) { |
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$engines[] = $row['Engine']; |
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} |
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} |
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return $engines; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function collations() |
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{ |
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$collations = []; |
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foreach ($this->driver->rows('SHOW COLLATION') as $row) { |
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if ($row['Default']) { |
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$collations[$row['Charset']][-1] = $row['Collation']; |
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} else { |
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$collations[$row['Charset']][] = $row['Collation']; |
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} |
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} |
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ksort($collations); |
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foreach ($collations as $key => $val) { |
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asort($collations[$key]); |
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} |
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return $collations; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isInformationSchema(string $database) |
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{ |
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return ($this->driver->minVersion(5) && $database == 'information_schema') || |
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($this->driver->minVersion(5.5) && $database == 'performance_schema'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function createDatabase(string $database, string $collation) |
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{ |
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$result = $this->driver->execute('CREATE DATABASE ' . $this->driver->escapeId($database) . |
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($collation ? ' COLLATE ' . $this->driver->quote($collation) : '')); |
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return $result !== false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function dropDatabase(string $database) |
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{ |
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$result = $this->driver->execute('DROP DATABASE ' . $this->driver->escapeId($database)); |
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return $result !== false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function renameDatabase(string $name, string $collation) |
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{ |
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// The feature is not natively provided by latest MySQL versions, thus it is disabled here. |
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return false; |
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/*$renamed = false; |
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if ($this->createDatabase($name, $collation)) { |
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$tables = []; |
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$views = []; |
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foreach ($this->driver->tables() as $table => $type) { |
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if ($type == 'VIEW') { |
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$views[] = $table; |
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} else { |
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$tables[] = $table; |
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} |
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} |
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$renamed = (!$tables && !$views) || $this->driver->moveTables($tables, $views, $name); |
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$this->dropDatabase($renamed ? $this->driver->database() : ''); |
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} |
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return $renamed;*/ |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function routineLanguages() |
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{ |
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return []; // 'SQL' not required |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function variables() |
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{ |
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return $this->driver->keyValues('SHOW VARIABLES'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function processes() |
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{ |
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return $this->driver->rows('SHOW FULL PROCESSLIST'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function processAttr(array $process, string $key, string $val): string |
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{ |
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$match = array_key_exists('Command', $process) && preg_match('~Query|Killed~', $process['Command']); |
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if ($key == 'Info' && $match && $val != '') { |
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return '<code>' . $this->util->shortenUtf8($val, 50) . '</code>' . $this->trans->lang('Clone'); |
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} |
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return parent::processAttr($process, $key, $val); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function statusVariables() |
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{ |
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return $this->driver->keyValues('SHOW STATUS'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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// public function killProcess($val) |
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// { |
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// return $this->driver->execute('KILL ' . $this->util->number($val)); |
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// } |
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/** |
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* @inheritDoc |
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*/ |
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// public function maxConnections() |
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// { |
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// return $this->driver->result('SELECT @@max_connections'); |
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// } |
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} |
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lagdo /
dbadmin-driver-mysql
