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Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 400 and 401] [Versions 401 and 403]

   1  <?php
   2  /**
   3   * MSSQL driver via ODBC
   4   *
   5   * This file is part of ADOdb, a Database Abstraction Layer library for PHP.
   6   *
   7   * @package ADOdb
   8   * @link https://adodb.org Project's web site and documentation
   9   * @link https://github.com/ADOdb/ADOdb Source code and issue tracker
  10   *
  11   * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
  12   * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
  13   * any later version. This means you can use it in proprietary products.
  14   * See the LICENSE.md file distributed with this source code for details.
  15   * @license BSD-3-Clause
  16   * @license LGPL-2.1-or-later
  17   *
  18   * @copyright 2000-2013 John Lim
  19   * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
  20   */
  21  
  22  // security - hide paths
  23  if (!defined('ADODB_DIR')) die();
  24  
  25  if (!defined('_ADODB_ODBC_LAYER')) {
  26  	 include_once(ADODB_DIR."/drivers/adodb-odbc.inc.php");
  27  }
  28  
  29  
  30  class  ADODB_odbc_mssql extends ADODB_odbc {
  31  	 var $databaseType = 'odbc_mssql';
  32  	 var $fmtDate = "'Y-m-d'";
  33  	 var $fmtTimeStamp = "'Y-m-d\TH:i:s'";
  34  	 var $_bindInputArray = true;
  35  	 var $metaDatabasesSQL = "select name from sysdatabases where name <> 'master'";
  36  	 var $metaTablesSQL="select name,case when type='U' then 'T' else 'V' end from sysobjects where (type='U' or type='V') and (name not in ('sysallocations','syscolumns','syscomments','sysdepends','sysfilegroups','sysfiles','sysfiles1','sysforeignkeys','sysfulltextcatalogs','sysindexes','sysindexkeys','sysmembers','sysobjects','syspermissions','sysprotects','sysreferences','systypes','sysusers','sysalternates','sysconstraints','syssegments','REFERENTIAL_CONSTRAINTS','CHECK_CONSTRAINTS','CONSTRAINT_TABLE_USAGE','CONSTRAINT_COLUMN_USAGE','VIEWS','VIEW_TABLE_USAGE','VIEW_COLUMN_USAGE','SCHEMATA','TABLES','TABLE_CONSTRAINTS','TABLE_PRIVILEGES','COLUMNS','COLUMN_DOMAIN_USAGE','COLUMN_PRIVILEGES','DOMAINS','DOMAIN_CONSTRAINTS','KEY_COLUMN_USAGE'))";
  37  	 var $metaColumnsSQL = # xtype==61 is datetime
  38  	 "select c.name,t.name,c.length,c.isnullable, c.status,
  39  	 	 (case when c.xusertype=61 then 0 else c.xprec end),
  40  	 	 (case when c.xusertype=61 then 0 else c.xscale end)
  41  	 	 from syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id where o.name='%s'";
  42  	 var $hasTop = 'top';	 	 // support mssql/interbase SELECT TOP 10 * FROM TABLE
  43  	 var $sysDate = 'GetDate()';
  44  	 var $sysTimeStamp = 'GetDate()';
  45  	 var $leftOuter = '*=';
  46  	 var $rightOuter = '=*';
  47  	 var $substr = 'substring';
  48  	 var $length = 'len';
  49  	 var $ansiOuter = true; // for mssql7 or later
  50  	 var $identitySQL = 'select SCOPE_IDENTITY()'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  51  	 var $hasInsertID = true;
  52  	 var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  53  	 	 	 	 	 	 	 	 	 	 	 	 	 	   # concatenating a null value with a string yields a NULL result
  54  
  55  	 // crashes php...
  56  	function ServerInfo()
  57  	 {
  58  	 global $ADODB_FETCH_MODE;
  59  	 	 $save = $ADODB_FETCH_MODE;
  60  	 	 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  61  	 	 $row = $this->GetRow("execute sp_server_info 2");
  62  	 	 $ADODB_FETCH_MODE = $save;
  63  	 	 if (!is_array($row)) return false;
  64  	 	 $arr['description'] = $row[2];
  65  	 	 $arr['version'] = ADOConnection::_findvers($arr['description']);
  66  	 	 return $arr;
  67  	 }
  68  
  69  	function IfNull( $field, $ifNull )
  70  	 {
  71  	 	 return " ISNULL($field, $ifNull) "; // if MS SQL Server
  72  	 }
  73  
  74  	protected function _insertID($table = '', $column = '')
  75  	 {
  76  	 // SCOPE_IDENTITY()
  77  	 // Returns the last IDENTITY value inserted into an IDENTITY column in
  78  	 // the same scope. A scope is a module -- a stored procedure, trigger,
  79  	 // function, or batch. Thus, two statements are in the same scope if
  80  	 // they are in the same stored procedure, function, or batch.
  81  	 	 	 return $this->GetOne($this->identitySQL);
  82  	 }
  83  
  84  	public function metaForeignKeys($table, $owner = '', $upper = false, $associative = false)
  85  	 {
  86  	 global $ADODB_FETCH_MODE;
  87  
  88  	 	 $save = $ADODB_FETCH_MODE;
  89  	 	 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  90  	 	 $table = $this->qstr(strtoupper($table));
  91  
  92  	 	 $sql =
  93  "select object_name(constid) as constraint_name,
  94  	 col_name(fkeyid, fkey) as column_name,
  95  	 object_name(rkeyid) as referenced_table_name,
  96     	 col_name(rkeyid, rkey) as referenced_column_name
  97  from sysforeignkeys
  98  where upper(object_name(fkeyid)) = $table
  99  order by constraint_name, referenced_table_name, keyno";
 100  
 101  	 	 $constraints = $this->GetArray($sql);
 102  
 103  	 	 $ADODB_FETCH_MODE = $save;
 104  
 105  	 	 $arr = false;
 106  	 	 foreach($constraints as $constr) {
 107  	 	 	 //print_r($constr);
 108  	 	 	 $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3];
 109  	 	 }
 110  	 	 if (!$arr) return false;
 111  
 112  	 	 $arr2 = false;
 113  
 114  	 	 foreach($arr as $k => $v) {
 115  	 	 	 foreach($v as $a => $b) {
 116  	 	 	 	 if ($upper) $a = strtoupper($a);
 117  	 	 	 	 $arr2[$a] = $b;
 118  	 	 	 }
 119  	 	 }
 120  	 	 return $arr2;
 121  	 }
 122  
 123  	function MetaTables($ttype=false,$showSchema=false,$mask=false)
 124  	 {
 125  	 	 if ($mask) {//$this->debug=1;
 126  	 	 	 $save = $this->metaTablesSQL;
 127  	 	 	 $mask = $this->qstr($mask);
 128  	 	 	 $this->metaTablesSQL .= " AND name like $mask";
 129  	 	 }
 130  	 	 $ret = ADOConnection::MetaTables($ttype,$showSchema);
 131  
 132  	 	 if ($mask) {
 133  	 	 	 $this->metaTablesSQL = $save;
 134  	 	 }
 135  	 	 return $ret;
 136  	 }
 137  
 138  	function MetaColumns($table, $normalize=true)
 139  	 {
 140  
 141  	 	 $this->_findschema($table,$schema);
 142  	 	 if ($schema) {
 143  	 	 	 $dbName = $this->database;
 144  	 	 	 $this->SelectDB($schema);
 145  	 	 }
 146  	 	 global $ADODB_FETCH_MODE;
 147  	 	 $save = $ADODB_FETCH_MODE;
 148  	 	 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 149  
 150  	 	 if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
 151  	 	 $rs = $this->Execute(sprintf($this->metaColumnsSQL,$table));
 152  
 153  	 	 if ($schema) {
 154  	 	 	 $this->SelectDB($dbName);
 155  	 	 }
 156  
 157  	 	 if (isset($savem)) $this->SetFetchMode($savem);
 158  	 	 $ADODB_FETCH_MODE = $save;
 159  	 	 if (!is_object($rs)) {
 160  	 	 	 $false = false;
 161  	 	 	 return $false;
 162  	 	 }
 163  
 164  	 	 $retarr = array();
 165  	 	 while (!$rs->EOF){
 166  	 	 	 $fld = new ADOFieldObject();
 167  	 	 	 $fld->name = $rs->fields[0];
 168  	 	 	 $fld->type = $rs->fields[1];
 169  
 170  	 	 	 $fld->not_null = (!$rs->fields[3]);
 171  	 	 	 $fld->auto_increment = ($rs->fields[4] == 128);	 	 // sys.syscolumns status field. 0x80 = 128 ref: http://msdn.microsoft.com/en-us/library/ms186816.aspx
 172  
 173  
 174  	 	 	 if (isset($rs->fields[5]) && $rs->fields[5]) {
 175  	 	 	 	 if ($rs->fields[5]>0) $fld->max_length = $rs->fields[5];
 176  	 	 	 	 $fld->scale = $rs->fields[6];
 177  	 	 	 	 if ($fld->scale>0) $fld->max_length += 1;
 178  	 	 	 } else
 179  	 	 	 	 $fld->max_length = $rs->fields[2];
 180  
 181  
 182  	 	 	 if ($save == ADODB_FETCH_NUM) {
 183  	 	 	 	 $retarr[] = $fld;
 184  	 	 	 } else {
 185  	 	 	 	 $retarr[strtoupper($fld->name)] = $fld;
 186  	 	 	 }
 187  	 	 	 	 $rs->MoveNext();
 188  	 	 	 }
 189  
 190  	 	 	 $rs->Close();
 191  	 	 	 return $retarr;
 192  
 193  	 }
 194  
 195  
 196  	function MetaIndexes($table,$primary=false, $owner=false)
 197  	 {
 198  	 	 $table = $this->qstr($table);
 199  
 200  	 	 $sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno,
 201  	 	 	 CASE WHEN I.indid BETWEEN 1 AND 254 AND (I.status & 2048 = 2048 OR I.Status = 16402 AND O.XType = 'V') THEN 1 ELSE 0 END AS IsPK,
 202  	 	 	 CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
 203  	 	 	 FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id
 204  	 	 	 INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid
 205  	 	 	 INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
 206  	 	 	 WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
 207  	 	 	 ORDER BY O.name, I.Name, K.keyno";
 208  
 209  	 	 global $ADODB_FETCH_MODE;
 210  	 	 $save = $ADODB_FETCH_MODE;
 211          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 212          if ($this->fetchMode !== FALSE) {
 213          	 $savem = $this->SetFetchMode(FALSE);
 214          }
 215  
 216          $rs = $this->Execute($sql);
 217          if (isset($savem)) {
 218          	 $this->SetFetchMode($savem);
 219          }
 220          $ADODB_FETCH_MODE = $save;
 221  
 222          if (!is_object($rs)) {
 223          	 return FALSE;
 224          }
 225  
 226  	 	 $indexes = array();
 227  	 	 while ($row = $rs->FetchRow()) {
 228  	 	 	 if (!$primary && $row[5]) continue;
 229  
 230              $indexes[$row[0]]['unique'] = $row[6];
 231              $indexes[$row[0]]['columns'][] = $row[1];
 232      	 }
 233          return $indexes;
 234  	 }
 235  
 236  	function _query($sql,$inputarr=false)
 237  	 {
 238  	 	 if (is_string($sql)) $sql = str_replace('||','+',$sql);
 239  	 	 return ADODB_odbc::_query($sql,$inputarr);
 240  	 }
 241  
 242  	function SetTransactionMode( $transaction_mode )
 243  	 {
 244  	 	 $this->_transmode  = $transaction_mode;
 245  	 	 if (empty($transaction_mode)) {
 246  	 	 	 $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
 247  	 	 	 return;
 248  	 	 }
 249  	 	 if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
 250  	 	 $this->Execute("SET TRANSACTION ".$transaction_mode);
 251  	 }
 252  
 253  	 // "Stein-Aksel Basma" <basma@accelero.no>
 254  	 // tested with MSSQL 2000
 255  	function MetaPrimaryKeys($table, $owner = false)
 256  	 {
 257  	 global $ADODB_FETCH_MODE;
 258  
 259  	 	 $schema = '';
 260  	 	 $this->_findschema($table,$schema);
 261  	 	 //if (!$schema) $schema = $this->database;
 262  	 	 if ($schema) $schema = "and k.table_catalog like '$schema%'";
 263  
 264  	 	 $sql = "select distinct k.column_name,ordinal_position from information_schema.key_column_usage k,
 265  	 	 information_schema.table_constraints tc
 266  	 	 where tc.constraint_name = k.constraint_name and tc.constraint_type =
 267  	 	 'PRIMARY KEY' and k.table_name = '$table' $schema order by ordinal_position ";
 268  
 269  	 	 $savem = $ADODB_FETCH_MODE;
 270  	 	 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
 271  	 	 $a = $this->GetCol($sql);
 272  	 	 $ADODB_FETCH_MODE = $savem;
 273  
 274  	 	 if ($a && sizeof($a)>0) return $a;
 275  	 	 $false = false;
 276  	 	 return $false;
 277  	 }
 278  
 279  	function SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 280  	 {
 281  	 	 $nrows = (int) $nrows;
 282  	 	 $offset = (int) $offset;
 283  	 	 if ($nrows > 0 && $offset <= 0) {
 284  	 	 	 $sql = preg_replace(
 285  	 	 	 	 '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 286  	 	 	 $rs = $this->Execute($sql,$inputarr);
 287  	 	 } else
 288  	 	 	 $rs = ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 289  
 290  	 	 return $rs;
 291  	 }
 292  
 293  	 // Format date column in sql string given an input format that understands Y M D
 294  	function SQLDate($fmt, $col=false)
 295  	 {
 296  	 	 if (!$col) $col = $this->sysTimeStamp;
 297  	 	 $s = '';
 298  
 299  	 	 $len = strlen($fmt);
 300  	 	 for ($i=0; $i < $len; $i++) {
 301  	 	 	 if ($s) $s .= '+';
 302  	 	 	 $ch = $fmt[$i];
 303  	 	 	 switch($ch) {
 304  	 	 	 case 'Y':
 305  	 	 	 case 'y':
 306  	 	 	 	 $s .= "datename(yyyy,$col)";
 307  	 	 	 	 break;
 308  	 	 	 case 'M':
 309  	 	 	 	 $s .= "convert(char(3),$col,0)";
 310  	 	 	 	 break;
 311  	 	 	 case 'm':
 312  	 	 	 	 $s .= "replace(str(month($col),2),' ','0')";
 313  	 	 	 	 break;
 314  	 	 	 case 'Q':
 315  	 	 	 case 'q':
 316  	 	 	 	 $s .= "datename(quarter,$col)";
 317  	 	 	 	 break;
 318  	 	 	 case 'D':
 319  	 	 	 case 'd':
 320  	 	 	 	 $s .= "replace(str(day($col),2),' ','0')";
 321  	 	 	 	 break;
 322  	 	 	 case 'h':
 323  	 	 	 	 $s .= "substring(convert(char(14),$col,0),13,2)";
 324  	 	 	 	 break;
 325  
 326  	 	 	 case 'H':
 327  	 	 	 	 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 328  	 	 	 	 break;
 329  
 330  	 	 	 case 'i':
 331  	 	 	 	 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 332  	 	 	 	 break;
 333  	 	 	 case 's':
 334  	 	 	 	 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 335  	 	 	 	 break;
 336  	 	 	 case 'a':
 337  	 	 	 case 'A':
 338  	 	 	 	 $s .= "substring(convert(char(19),$col,0),18,2)";
 339  	 	 	 	 break;
 340  
 341  	 	 	 default:
 342  	 	 	 	 if ($ch == '\\') {
 343  	 	 	 	 	 $i++;
 344  	 	 	 	 	 $ch = substr($fmt,$i,1);
 345  	 	 	 	 }
 346  	 	 	 	 $s .= $this->qstr($ch);
 347  	 	 	 	 break;
 348  	 	 	 }
 349  	 	 }
 350  	 	 return $s;
 351  	 }
 352  
 353  	 /**
 354  	 * Returns a substring of a varchar type field
 355  	 *
 356  	 * The SQL server version varies because the length is mandatory, so
 357  	 * we append a reasonable string length
 358  	 *
 359  	 * @param	 string	 $fld	 The field to sub-string
 360  	 * @param	 int	 	 $start	 The start point
 361  	 * @param	 int	 	 $length	 An optional length
 362  	 *
 363  	 * @return	 The SQL text
 364  	 */
 365  	function substr($fld,$start,$length=0)
 366  	 {
 367  	 	 if ($length == 0)
 368  	 	 	 /*
 369  	 	      * The length available to varchar is 2GB, but that makes no
 370  	 	 	  * sense in a substring, so I'm going to arbitrarily limit
 371  	 	 	  * the length to 1K, but you could change it if you want
 372  	 	 	  */
 373  	 	 	 $length = 1024;
 374  
 375  	 	 $text = "SUBSTRING($fld,$start,$length)";
 376  	 	 return $text;
 377  	 }
 378  
 379  	 /**
 380  	 * Returns the maximum size of a MetaType C field. Because of the
 381  	 * database design, SQL Server places no limits on the size of data inserted
 382  	 * Although the actual limit is 2^31-1 bytes.
 383  	 *
 384  	 * @return int
 385  	 */
 386  	function charMax()
 387  	 {
 388  	 	 return ADODB_STRINGMAX_NOLIMIT;
 389  	 }
 390  
 391  	 /**
 392  	 * Returns the maximum size of a MetaType X field. Because of the
 393  	 * database design, SQL Server places no limits on the size of data inserted
 394  	 * Although the actual limit is 2^31-1 bytes.
 395  	 *
 396  	 * @return int
 397  	 */
 398  	function textMax()
 399  	 {
 400  	 	 return ADODB_STRINGMAX_NOLIMIT;
 401  	 }
 402  
 403  	 // returns concatenated string
 404  	 // MSSQL requires integers to be cast as strings
 405  	 // automatically cast every datatype to VARCHAR(255)
 406  	 // @author David Rogers (introspectshun)
 407  	function Concat()
 408  	 {
 409  	 	 $s = "";
 410  	 	 $arr = func_get_args();
 411  
 412  	 	 // Split single record on commas, if possible
 413  	 	 if (sizeof($arr) == 1) {
 414  	 	 	 foreach ($arr as $arg) {
 415  	 	 	 	 $args = explode(',', $arg);
 416  	 	 	 }
 417  	 	 	 $arr = $args;
 418  	 	 }
 419  
 420  	 	 array_walk(
 421  	 	 	 $arr,
 422  	 	 	 function(&$value, $key) {
 423  	 	 	 	 $value = "CAST(" . $value . " AS VARCHAR(255))";
 424  	 	 	 }
 425  	 	 );
 426  	 	 $s = implode('+',$arr);
 427  	 	 if (sizeof($arr) > 0) return "$s";
 428  
 429  	 	 return '';
 430  	 }
 431  
 432  }
 433  
 434  class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 435  
 436  	 var $databaseType = 'odbc_mssql';
 437  
 438  }