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https://github.com/phpbb/phpbb.git
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Oracle support
git-svn-id: file:///svn/phpbb/trunk@9288 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Meik Sievertsen
parent
10e5d8b3ed
commit
270fd1f5f8
1 changed files with 479 additions and 527 deletions
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@ -16,232 +16,119 @@ if (!defined('IN_PHPBB'))
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exit;
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}
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include_once(PHPBB_ROOT_PATH . 'includes/db/dbal.' . PHP_EXT);
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/**
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* Oracle Database Abstraction Layer
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* Minimum Requirement: 9.2+
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* @package dbal
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*/
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class dbal_oracle extends dbal
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class phpbb_dbal_oracle extends phpbb_dbal
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{
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var $last_query_text = '';
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var $dbms_type = 'oracle';
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/**
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* @var string Database type. No distinction between versions or used extensions.
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*/
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public $dbms_type = 'oracle';
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/**
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* Connect to server
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* @var array Database type map, column layout information
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*/
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function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
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public $dbms_type_map = array(
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'INT:' => 'number(%d)',
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'BINT' => 'number(20)',
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'UINT' => 'number(8)',
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'UINT:' => 'number(%d)',
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'TINT:' => 'number(%d)',
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'USINT' => 'number(4)',
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'BOOL' => 'number(1)',
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'VCHAR' => 'varchar2(255)',
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'VCHAR:' => 'varchar2(%d)',
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'CHAR:' => 'char(%d)',
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'XSTEXT' => 'varchar2(1000)',
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'STEXT' => 'varchar2(3000)',
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'TEXT' => 'clob',
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'MTEXT' => 'clob',
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'XSTEXT_UNI'=> 'varchar2(300)',
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'STEXT_UNI' => 'varchar2(765)',
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'TEXT_UNI' => 'clob',
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'MTEXT_UNI' => 'clob',
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'TIMESTAMP' => 'number(11)',
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'DECIMAL' => 'number(5, 2)',
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'DECIMAL:' => 'number(%d, 2)',
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'PDECIMAL' => 'number(6, 3)',
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'PDECIMAL:' => 'number(%d, 3)',
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'VCHAR_UNI' => 'varchar2(255)',
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'VCHAR_UNI:'=> array('varchar2(%d)', 'limit' => array('mult', 3, 765, 'clob')),
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'VARBINARY' => 'raw(255)',
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);
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/**
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* @var string Last query executed. We need this for sql_nextid()
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*/
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var $last_query_text = '';
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/**
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* Connect to server. See {@link phpbb_dbal::sql_connect() sql_connect()} for details.
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*/
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public function sql_connect($server, $user, $password, $database, $port = false, $persistency = false , $new_link = false)
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{
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$this->persistency = $persistency;
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$this->user = $sqluser;
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$this->server = $sqlserver . (($port) ? ':' . $port : '');
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$this->user = $user;
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$this->server = $server . (($port) ? ':' . $port : '');
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$this->dbname = $database;
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$this->port = $port;
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$connect = $database;
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// support for "easy connect naming"
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if ($sqlserver !== '' && $sqlserver !== '/')
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if ($server !== '' && $server !== '/')
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{
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if (substr($sqlserver, -1, 1) == '/')
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if (substr($server, -1, 1) == '/')
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{
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$sqlserver == substr($sqlserver, 0, -1);
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$server == substr($sqlserver, 0, -1);
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}
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$connect = $sqlserver . (($port) ? ':' . $port : '') . '/' . $database;
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$connect = $server . (($port) ? ':' . $port : '') . '/' . $database;
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}
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$this->db_connect_id = ($new_link) ? @oci_new_connect($this->user, $sqlpassword, $connect, 'AL32UTF8') : (($this->persistency) ? @oci_pconnect($this->user, $sqlpassword, $connect, 'AL32UTF8') : @oci_connect($this->user, $sqlpassword, $connect, 'AL32UTF8'));
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$this->db_connect_id = ($new_link) ? @oci_new_connect($this->user, $password, $connect, 'AL32UTF8') : (($this->persistency) ? @oci_pconnect($this->user, $password, $connect, 'AL32UTF8') : @oci_connect($this->user, $password, $connect, 'AL32UTF8'));
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return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
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}
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/**
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* Version information about used database
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* @param bool $raw if true, only return the fetched sql_server_version
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* @return string sql server version
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* Version information about used database. See {@link phpbb_dbal::sql_server_info() sql_server_info()} for details.
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*/
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function sql_server_info($raw = false)
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public function sql_server_info($raw = false)
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{
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/*
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global $cache;
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if (empty($cache) || ($this->sql_server_version = $cache->get('oracle_version')) === false)
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if (!phpbb::registered('acm') || ($this->sql_server_version = phpbb::$acm->get('#oracle_version')) === false)
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{
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$result = @ociparse($this->db_connect_id, 'SELECT * FROM v$version WHERE banner LIKE \'Oracle%\'');
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$sql = "SELECT value
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FROM NLS_DATABASE_PARAMETERS
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WHERE PARAMETER = 'NLS_RDBMS_VERSION'";
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$result = @ociparse($this->db_connect_id, $sql);
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@ociexecute($result, OCI_DEFAULT);
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@ocicommit($this->db_connect_id);
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$row = array();
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@ocifetchinto($result, $row, OCI_ASSOC + OCI_RETURN_NULLS);
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@ocifreestatement($result);
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$this->sql_server_version = trim($row['BANNER']);
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$cache->put('oracle_version', $this->sql_server_version);
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$this->sql_server_version = (isset($row['VALUE'])) ? trim($row['VALUE']) : 0;
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if (phpbb::registered('acm'))
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{
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phpbb::$acm->put('#oracle_version', $this->sql_server_version);
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}
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}
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*/
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$this->sql_server_version = @ociserverversion($this->db_connect_id);
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return $this->sql_server_version;
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return ($raw) ? $this->sql_server_version : @oci_server_version($this->db_connect_id);
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}
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/**
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* SQL Transaction
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* @access private
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* DB-specific base query method. See {@link phpbb_dbal::_sql_query() _sql_query()} for details.
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*/
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function _sql_transaction($status = 'begin')
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protected function _sql_query($query)
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{
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switch ($status)
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{
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case 'begin':
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return true;
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break;
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case 'commit':
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return @oci_commit($this->db_connect_id);
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break;
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case 'rollback':
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return @oci_rollback($this->db_connect_id);
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break;
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}
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return true;
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}
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/**
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* Oracle specific code to handle the fact that it does not compare columns properly
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* @access private
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*/
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function _rewrite_col_compare($args)
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{
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if (sizeof($args) == 4)
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{
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if ($args[2] == '=')
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{
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return '(' . $args[0] . ' OR (' . $args[1] . ' is NULL AND ' . $args[3] . ' is NULL))';
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}
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else if ($args[2] == '<>')
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{
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// really just a fancy way of saying foo <> bar or (foo is NULL XOR bar is NULL) but SQL has no XOR :P
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return '(' . $args[0] . ' OR ((' . $args[1] . ' is NULL AND ' . $args[3] . ' is NOT NULL) OR (' . $args[1] . ' is NOT NULL AND ' . $args[3] . ' is NULL)))';
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}
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}
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else
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{
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return $this->_rewrite_where($args[0]);
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}
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}
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/**
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* Oracle specific code to handle it's lack of sanity
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* @access private
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*/
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function _rewrite_where($where_clause)
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{
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preg_match_all('/\s*(AND|OR)?\s*([\w_.]++)\s*(?:(=|<[=>]?|>=?)\s*((?>\'(?>[^\']++|\'\')*+\'|[\d-.]+))|((NOT )?IN\s*\((?>\'(?>[^\']++|\'\')*+\',? ?|[\d-.]+,? ?)*+\)))/', $where_clause, $result, PREG_SET_ORDER);
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$out = '';
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foreach ($result as $val)
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{
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if (!isset($val[5]))
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{
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if ($val[4] !== "''")
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{
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$out .= $val[0];
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}
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else
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{
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$out .= ' ' . $val[1] . ' ' . $val[2];
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if ($val[3] == '=')
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{
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$out .= ' is NULL';
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}
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else if ($val[3] == '<>')
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{
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$out .= ' is NOT NULL';
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}
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}
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}
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else
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{
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$in_clause = array();
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$sub_exp = substr($val[5], strpos($val[5], '(') + 1, -1);
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$extra = false;
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preg_match_all('/\'(?>[^\']++|\'\')*+\'|[\d-.]++/', $sub_exp, $sub_vals, PREG_PATTERN_ORDER);
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$i = 0;
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foreach ($sub_vals[0] as $sub_val)
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{
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// two things:
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// 1) This determines if an empty string was in the IN clausing, making us turn it into a NULL comparison
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// 2) This fixes the 1000 list limit that Oracle has (ORA-01795)
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if ($sub_val !== "''")
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{
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$in_clause[(int) $i++/1000][] = $sub_val;
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}
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else
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{
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$extra = true;
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}
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}
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if (!$extra && $i < 1000)
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{
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$out .= $val[0];
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}
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else
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{
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$out .= ' ' . $val[1] . '(';
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$in_array = array();
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// constuct each IN() clause
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foreach ($in_clause as $in_values)
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{
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$in_array[] = $val[2] . ' ' . (isset($val[6]) ? $val[6] : '') . 'IN(' . implode(', ', $in_values) . ')';
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}
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// Join the IN() clauses against a few ORs (IN is just a nicer OR anyway)
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$out .= implode(' OR ', $in_array);
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// handle the empty string case
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if ($extra)
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{
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$out .= ' OR ' . $val[2] . ' is ' . (isset($val[6]) ? $val[6] : '') . 'NULL';
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}
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$out .= ')';
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unset($in_array, $in_clause);
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}
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}
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}
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return $out;
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}
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/**
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* Base query method
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*
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* @param string $query Contains the SQL query which shall be executed
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* @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
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* @return mixed When casted to bool the returned value returns true on success and false on failure
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*
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* @access public
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*/
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function sql_query($query = '', $cache_ttl = 0)
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{
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if ($query != '')
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{
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global $cache;
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// EXPLAIN only in extra debug mode
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if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('start', $query);
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}
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$this->last_query_text = $query;
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$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false;
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$this->sql_add_num_queries($this->query_result);
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if ($this->query_result === false)
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{
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$in_transaction = false;
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if (!$this->transaction)
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{
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@ -269,7 +156,8 @@ class dbal_oracle extends dbal
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foreach ($inserts as $key => $value)
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{
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if (!empty($value) && $value[0] === "'" && strlen($value) > 4002) // check to see if this thing is greater than the max + 'x2
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// check to see if this thing is greater than the max + 'x2
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if (!empty($value) && $value[0] === "'" && strlen($value) > 4002)
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{
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$inserts[$key] = ':' . strtoupper($cols[$key]);
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$array[$inserts[$key]] = str_replace("''", "'", substr($value, 1, -1));
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@ -291,7 +179,8 @@ class dbal_oracle extends dbal
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$cols = array();
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foreach ($temp as $value)
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{
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if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 4002) // check to see if this thing is greater than the max + 'x2
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// check to see if this thing is greater than the max + 'x2
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if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 4002)
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{
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$cols[] = $value[1] . '=:' . strtoupper($value[1]);
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$array[$value[1]] = str_replace("''", "'", substr($value[2], 1, -1));
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@ -331,96 +220,111 @@ class dbal_oracle extends dbal
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break;
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}
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$this->query_result = @oci_parse($this->db_connect_id, $query);
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$result = @oci_parse($this->db_connect_id, $query);
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foreach ($array as $key => $value)
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{
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@oci_bind_by_name($this->query_result, $key, $array[$key], -1);
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}
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$success = @oci_execute($this->query_result, OCI_DEFAULT);
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if (!$success)
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{
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$this->sql_error($query);
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$this->query_result = false;
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}
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else
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{
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if (!$in_transaction)
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{
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$this->sql_transaction('commit');
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}
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}
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if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('stop', $query);
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}
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if ($cache_ttl && method_exists($cache, 'sql_save'))
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result;
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$cache->sql_save($query, $this->query_result, $cache_ttl);
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}
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else if (strpos($query, 'SELECT') === 0 && $this->query_result)
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result;
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}
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}
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else if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('fromcache', $query);
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}
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}
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else
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if (!$result)
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{
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return false;
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}
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return $this->query_result;
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foreach ($array as $key => $value)
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{
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@oci_bind_by_name($result, $key, $array[$key], -1);
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}
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$success = @oci_execute($result, OCI_DEFAULT);
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if (!$success)
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{
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return false;
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}
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if (!$in_transaction)
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{
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$this->sql_transaction('commit');
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}
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return $result;
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}
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/**
|
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* Build LIMIT query
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* Build LIMIT query and run it. See {@link phpbb_dbal::_sql_query_limit() _sql_query_limit()} for details.
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*/
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function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)
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protected function _sql_query_limit($query, $total, $offset, $cache_ttl)
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{
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$this->query_result = false;
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$query = 'SELECT * FROM (SELECT /*+ FIRST_ROWS */ rownum AS xrownum, a.* FROM (' . $query . ') a WHERE rownum <= ' . ($offset + $total) . ') WHERE xrownum >= ' . $offset;
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return $this->sql_query($query, $cache_ttl);
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}
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/**
|
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* Return number of affected rows
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* Close sql connection. See {@link phpbb_dbal::_sql_close() _sql_close()} for details.
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*/
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function sql_affectedrows()
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protected function _sql_close()
|
||||
{
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return @oci_close($this->db_connect_id);
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}
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/**
|
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* SQL Transaction. See {@link phpbb_dbal::_sql_transaction() _sql_transaction()} for details.
|
||||
*/
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protected function _sql_transaction($status)
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{
|
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switch ($status)
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||||
{
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case 'begin':
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return true;
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break;
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case 'commit':
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return @oci_commit($this->db_connect_id);
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break;
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case 'rollback':
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return @oci_rollback($this->db_connect_id);
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break;
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}
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return true;
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}
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/**
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* Return number of affected rows. See {@link phpbb_dbal::sql_affectedrows() sql_affectedrows()} for details.
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*/
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public function sql_affectedrows()
|
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{
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return ($this->query_result) ? @oci_num_rows($this->query_result) : false;
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||||
}
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/**
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* Fetch current row
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* Get last inserted id after insert statement. See {@link phpbb_dbal::sql_nextid() sql_nextid()} for details.
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*/
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function sql_fetchrow($query_id = false)
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public function sql_nextid()
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||||
{
|
||||
global $cache;
|
||||
|
||||
if ($query_id === false)
|
||||
if (!$this->query_result || !$this->last_query_text)
|
||||
{
|
||||
$query_id = $this->query_result;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (isset($cache->sql_rowset[$query_id]))
|
||||
if (preg_match('#^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)#is', $this->last_query_text, $tablename))
|
||||
{
|
||||
return $cache->sql_fetchrow($query_id);
|
||||
$query = 'SELECT ' . $tablename[1] . '_seq.currval FROM DUAL';
|
||||
$stmt = @oci_parse($this->db_connect_id, $query);
|
||||
@oci_execute($stmt, OCI_DEFAULT);
|
||||
|
||||
$temp_array = @oci_fetch_array($stmt, OCI_ASSOC + OCI_RETURN_NULLS);
|
||||
@oci_free_statement($stmt);
|
||||
|
||||
return (isset($temp_array['CURRVAL'])) ? $temp_array['CURRVAL'] : false;
|
||||
}
|
||||
|
||||
if ($query_id !== false)
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetch current row. See {@link phpbb_dbal::_sql_fetchrow() _sql_fetchrow()} for details.
|
||||
*/
|
||||
protected function _sql_fetchrow($query_id)
|
||||
{
|
||||
$row = array();
|
||||
$row = @oci_fetch_array($query_id, OCI_ASSOC + OCI_RETURN_NULLS);
|
||||
|
||||
if (!$row)
|
||||
|
|
@ -449,79 +353,34 @@ class dbal_oracle extends dbal
|
|||
return $result_row;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get last inserted id after insert statement
|
||||
* Free query result. See {@link phpbb_dbal::_sql_freeresult() _sql_freeresult()} for details.
|
||||
*/
|
||||
function sql_nextid()
|
||||
protected function _sql_freeresult($query_id)
|
||||
{
|
||||
$query_id = $this->query_result;
|
||||
|
||||
if ($query_id !== false && $this->last_query_text != '')
|
||||
{
|
||||
if (preg_match('#^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)#is', $this->last_query_text, $tablename))
|
||||
{
|
||||
$query = 'SELECT ' . $tablename[1] . '_seq.currval FROM DUAL';
|
||||
$stmt = @oci_parse($this->db_connect_id, $query);
|
||||
@oci_execute($stmt, OCI_DEFAULT);
|
||||
|
||||
$temp_array = @oci_fetch_array($stmt, OCI_ASSOC + OCI_RETURN_NULLS);
|
||||
@oci_free_statement($stmt);
|
||||
|
||||
if ($temp_array)
|
||||
{
|
||||
return $temp_array['CURRVAL'];
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Free sql result
|
||||
*/
|
||||
function sql_freeresult($query_id = false)
|
||||
{
|
||||
global $cache;
|
||||
|
||||
if ($query_id === false)
|
||||
{
|
||||
$query_id = $this->query_result;
|
||||
}
|
||||
|
||||
if (isset($cache->sql_rowset[$query_id]))
|
||||
{
|
||||
return $cache->sql_freeresult($query_id);
|
||||
}
|
||||
|
||||
if (isset($this->open_queries[(int) $query_id]))
|
||||
{
|
||||
unset($this->open_queries[(int) $query_id]);
|
||||
return @oci_free_statement($query_id);
|
||||
}
|
||||
|
||||
return false;
|
||||
/**
|
||||
* Correctly adjust LIKE expression for special characters. See {@link phpbb_dbal::_sql_like_expression() _sql_like_expression()} for details.
|
||||
*/
|
||||
protected function _sql_like_expression($expression)
|
||||
{
|
||||
return $expression . " ESCAPE '\\'";
|
||||
}
|
||||
|
||||
/**
|
||||
* Escape string used in sql query
|
||||
* Escape string used in sql query. See {@link phpbb_dbal::sql_escape() sql_escape()} for details.
|
||||
*/
|
||||
function sql_escape($msg)
|
||||
public function sql_escape($msg)
|
||||
{
|
||||
return str_replace(array("'", "\0"), array("''", ''), $msg);
|
||||
}
|
||||
|
||||
/**
|
||||
* Expose a DBMS specific function
|
||||
* Expose a DBMS specific function. See {@link phpbb_dbal::sql_function() sql_function()} for details.
|
||||
*/
|
||||
function sql_function($type, $col)
|
||||
public function sql_function($type, $col)
|
||||
{
|
||||
switch ($type)
|
||||
{
|
||||
|
|
@ -535,7 +394,9 @@ class dbal_oracle extends dbal
|
|||
}
|
||||
}
|
||||
|
||||
function sql_handle_data($type, $table, $data, $where = '')
|
||||
/**
|
||||
* Handle data by using prepared statements. See {@link phpbb_dbal::sql_handle_data() sql_handle_data()} for details.
|
||||
public function sql_handle_data($type, $table, $data, $where = '')
|
||||
{
|
||||
if ($type === 'INSERT')
|
||||
{
|
||||
|
|
@ -567,73 +428,55 @@ class dbal_oracle extends dbal
|
|||
|
||||
oci_execute($stmt);
|
||||
}
|
||||
*/
|
||||
|
||||
/**
|
||||
* Build LIKE expression
|
||||
* @access private
|
||||
* Build DB-specific query bits. See {@link phpbb_dbal::_sql_custom_build() _sql_custom_build()} for details.
|
||||
*/
|
||||
function _sql_like_expression($expression)
|
||||
{
|
||||
return $expression . " ESCAPE '\\'";
|
||||
}
|
||||
|
||||
function _sql_custom_build($stage, $data)
|
||||
protected function _sql_custom_build($stage, $data)
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
/**
|
||||
* return sql error array
|
||||
* @access private
|
||||
* return sql error array. See {@link phpbb_dbal::_sql_error() _sql_error()} for details.
|
||||
*/
|
||||
function _sql_error()
|
||||
protected function _sql_error()
|
||||
{
|
||||
$error = @oci_error();
|
||||
$error = (!$error) ? @oci_error($this->query_result) : $error;
|
||||
$error = (!$error) ? @oci_error($this->db_connect_id) : $error;
|
||||
$error = (empty($error)) ? @oci_error($this->query_result) : $error;
|
||||
$error = (empty($error)) ? @oci_error($this->db_connect_id) : $error;
|
||||
|
||||
if ($error)
|
||||
if (empty($error))
|
||||
{
|
||||
$this->last_error_result = $error;
|
||||
}
|
||||
else
|
||||
{
|
||||
$error = (isset($this->last_error_result) && $this->last_error_result) ? $this->last_error_result : array();
|
||||
$error = array(
|
||||
'message' => '',
|
||||
'code' => '',
|
||||
);
|
||||
}
|
||||
|
||||
return $error;
|
||||
}
|
||||
|
||||
/**
|
||||
* Close sql connection
|
||||
* @access private
|
||||
* Run DB-specific code to build SQL Report to explain queries, show statistics and runtime information. See {@link phpbb_dbal::_sql_report() _sql_report()} for details.
|
||||
*/
|
||||
function _sql_close()
|
||||
{
|
||||
return @oci_close($this->db_connect_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* Build db-specific report
|
||||
* @access private
|
||||
*/
|
||||
function _sql_report($mode, $query = '')
|
||||
protected function _sql_report($mode, $query = '')
|
||||
{
|
||||
switch ($mode)
|
||||
{
|
||||
case 'start':
|
||||
|
||||
$html_table = false;
|
||||
|
||||
// Grab a plan table, any will do
|
||||
$sql = "SELECT table_name
|
||||
FROM USER_TABLES
|
||||
WHERE table_name LIKE '%PLAN_TABLE%'";
|
||||
$stmt = oci_parse($this->db_connect_id, $sql);
|
||||
oci_execute($stmt);
|
||||
$stmt = @oci_parse($this->db_connect_id, $sql);
|
||||
@oci_execute($stmt);
|
||||
$result = array();
|
||||
|
||||
if ($result = oci_fetch_array($stmt, OCI_ASSOC + OCI_RETURN_NULLS))
|
||||
if ($result = @oci_fetch_array($stmt, OCI_ASSOC + OCI_RETURN_NULLS))
|
||||
{
|
||||
$table = $result['TABLE_NAME'];
|
||||
|
||||
|
|
@ -641,17 +484,17 @@ class dbal_oracle extends dbal
|
|||
$statement_id = substr(md5($query), 0, 30);
|
||||
|
||||
// Remove any stale plans
|
||||
$stmt2 = oci_parse($this->db_connect_id, "DELETE FROM $table WHERE statement_id='$statement_id'");
|
||||
oci_execute($stmt2);
|
||||
oci_free_statement($stmt2);
|
||||
$stmt2 = @oci_parse($this->db_connect_id, "DELETE FROM $table WHERE statement_id='$statement_id'");
|
||||
@oci_execute($stmt2);
|
||||
@oci_free_statement($stmt2);
|
||||
|
||||
// Explain the plan
|
||||
$sql = "EXPLAIN PLAN
|
||||
SET STATEMENT_ID = '$statement_id'
|
||||
FOR $query";
|
||||
$stmt2 = ociparse($this->db_connect_id, $sql);
|
||||
oci_execute($stmt2);
|
||||
oci_free_statement($stmt2);
|
||||
$stmt2 = @ociparse($this->db_connect_id, $sql);
|
||||
@oci_execute($stmt2);
|
||||
@oci_free_statement($stmt2);
|
||||
|
||||
// Get the data from the plan
|
||||
$sql = "SELECT operation, options, object_name, object_type, cardinality, cost
|
||||
|
|
@ -659,24 +502,23 @@ class dbal_oracle extends dbal
|
|||
START WITH id = 0 AND statement_id = '$statement_id'
|
||||
CONNECT BY PRIOR id = parent_id
|
||||
AND statement_id = '$statement_id'";
|
||||
$stmt2 = oci_parse($this->db_connect_id, $sql);
|
||||
oci_execute($stmt2);
|
||||
$stmt2 = @oci_parse($this->db_connect_id, $sql);
|
||||
@oci_execute($stmt2);
|
||||
|
||||
$row = array();
|
||||
while ($row = oci_fetch_array($stmt2, OCI_ASSOC + OCI_RETURN_NULLS))
|
||||
while ($row = @oci_fetch_array($stmt2, OCI_ASSOC + OCI_RETURN_NULLS))
|
||||
{
|
||||
$html_table = $this->sql_report('add_select_row', $query, $html_table, $row);
|
||||
}
|
||||
|
||||
oci_free_statement($stmt2);
|
||||
@oci_free_statement($stmt2);
|
||||
|
||||
// Remove the plan we just made, we delete them on request anyway
|
||||
$stmt2 = oci_parse($this->db_connect_id, "DELETE FROM $table WHERE statement_id='$statement_id'");
|
||||
oci_execute($stmt2);
|
||||
oci_free_statement($stmt2);
|
||||
$stmt2 = @oci_parse($this->db_connect_id, "DELETE FROM $table WHERE statement_id='$statement_id'");
|
||||
@oci_execute($stmt2);
|
||||
@oci_free_statement($stmt2);
|
||||
}
|
||||
|
||||
oci_free_statement($stmt);
|
||||
@oci_free_statement($stmt);
|
||||
|
||||
if ($html_table)
|
||||
{
|
||||
|
|
@ -707,6 +549,116 @@ class dbal_oracle extends dbal
|
|||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Oracle specific code to handle the fact that it does not compare columns properly
|
||||
* @access private
|
||||
*/
|
||||
private function _rewrite_col_compare($args)
|
||||
{
|
||||
if (sizeof($args) == 4)
|
||||
{
|
||||
if ($args[2] == '=')
|
||||
{
|
||||
return '(' . $args[0] . ' OR (' . $args[1] . ' is NULL AND ' . $args[3] . ' is NULL))';
|
||||
}
|
||||
else if ($args[2] == '<>')
|
||||
{
|
||||
// really just a fancy way of saying foo <> bar or (foo is NULL XOR bar is NULL) but SQL has no XOR :P
|
||||
return '(' . $args[0] . ' OR ((' . $args[1] . ' is NULL AND ' . $args[3] . ' is NOT NULL) OR (' . $args[1] . ' is NOT NULL AND ' . $args[3] . ' is NULL)))';
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
return $this->_rewrite_where($args[0]);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Oracle specific code to handle it's lack of sanity
|
||||
* @access private
|
||||
*/
|
||||
private function _rewrite_where($where_clause)
|
||||
{
|
||||
preg_match_all('/\s*(AND|OR)?\s*([\w_.]++)\s*(?:(=|<[=>]?|>=?)\s*((?>\'(?>[^\']++|\'\')*+\'|[\d-.]+))|((NOT )?IN\s*\((?>\'(?>[^\']++|\'\')*+\',? ?|[\d-.]+,? ?)*+\)))/', $where_clause, $result, PREG_SET_ORDER);
|
||||
$out = '';
|
||||
|
||||
foreach ($result as $val)
|
||||
{
|
||||
if (!isset($val[5]))
|
||||
{
|
||||
if ($val[4] !== "''")
|
||||
{
|
||||
$out .= $val[0];
|
||||
}
|
||||
else
|
||||
{
|
||||
$out .= ' ' . $val[1] . ' ' . $val[2];
|
||||
if ($val[3] == '=')
|
||||
{
|
||||
$out .= ' is NULL';
|
||||
}
|
||||
else if ($val[3] == '<>')
|
||||
{
|
||||
$out .= ' is NOT NULL';
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
$in_clause = array();
|
||||
$sub_exp = substr($val[5], strpos($val[5], '(') + 1, -1);
|
||||
$extra = false;
|
||||
preg_match_all('/\'(?>[^\']++|\'\')*+\'|[\d-.]++/', $sub_exp, $sub_vals, PREG_PATTERN_ORDER);
|
||||
$i = 0;
|
||||
|
||||
foreach ($sub_vals[0] as $sub_val)
|
||||
{
|
||||
// two things:
|
||||
// 1) This determines if an empty string was in the IN clausing, making us turn it into a NULL comparison
|
||||
// 2) This fixes the 1000 list limit that Oracle has (ORA-01795)
|
||||
if ($sub_val !== "''")
|
||||
{
|
||||
$in_clause[(int) $i++/1000][] = $sub_val;
|
||||
}
|
||||
else
|
||||
{
|
||||
$extra = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (!$extra && $i < 1000)
|
||||
{
|
||||
$out .= $val[0];
|
||||
}
|
||||
else
|
||||
{
|
||||
$out .= ' ' . $val[1] . '(';
|
||||
$in_array = array();
|
||||
|
||||
// constuct each IN() clause
|
||||
foreach ($in_clause as $in_values)
|
||||
{
|
||||
$in_array[] = $val[2] . ' ' . (isset($val[6]) ? $val[6] : '') . 'IN(' . implode(', ', $in_values) . ')';
|
||||
}
|
||||
|
||||
// Join the IN() clauses against a few ORs (IN is just a nicer OR anyway)
|
||||
$out .= implode(' OR ', $in_array);
|
||||
|
||||
// handle the empty string case
|
||||
if ($extra)
|
||||
{
|
||||
$out .= ' OR ' . $val[2] . ' is ' . (isset($val[6]) ? $val[6] : '') . 'NULL';
|
||||
}
|
||||
$out .= ')';
|
||||
|
||||
unset($in_array, $in_clause);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $out;
|
||||
}
|
||||
}
|
||||
|
||||
?>
|
||||
Loading…
Add table
Reference in a new issue