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   1  <?php
   2  /*
   3  V5.19  23-Apr-2014  (c) 2000-2014 John Lim (jlim#natsoft.com). All rights reserved.
   4    Released under both BSD license and Lesser GPL library license.
   5    Whenever there is any discrepancy between the two licenses,
   6    the BSD license will take precedence.
   7  Set tabs to 4 for best viewing.
   8  
   9    Latest version is available at http://adodb.sourceforge.net
  10  
  11    MSSQL support via ODBC. Requires ODBC. Works on Windows and Unix.
  12    For Unix configuration, see http://phpbuilder.com/columns/alberto20000919.php3
  13  */
  14  
  15  // security - hide paths
  16  if (!defined('ADODB_DIR')) die();
  17  
  18  if (!defined('_ADODB_ODBC_LAYER')) {
  19      include(ADODB_DIR."/drivers/adodb-odbc.inc.php");
  20  }
  21  
  22  
  23  class  ADODB_odbc_mssql extends ADODB_odbc {
  24      var $databaseType = 'odbc_mssql';
  25      var $fmtDate = "'Y-m-d'";
  26      var $fmtTimeStamp = "'Y-m-d\TH:i:s'";
  27      var $_bindInputArray = true;
  28      var $metaDatabasesSQL = "select name from sysdatabases where name <> 'master'";
  29      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'))";
  30      var $metaColumnsSQL = # xtype==61 is datetime
  31      "select c.name,t.name,c.length,c.isnullable, c.status,
  32          (case when c.xusertype=61 then 0 else c.xprec end),
  33          (case when c.xusertype=61 then 0 else c.xscale end)
  34          from syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id where o.name='%s'";
  35      var $hasTop = 'top';        // support mssql/interbase SELECT TOP 10 * FROM TABLE
  36      var $sysDate = 'GetDate()';
  37      var $sysTimeStamp = 'GetDate()';
  38      var $leftOuter = '*=';
  39      var $rightOuter = '=*';
  40      var $substr = 'substring';
  41      var $length = 'len';
  42      var $ansiOuter = true; // for mssql7 or later
  43      var $identitySQL = 'select SCOPE_IDENTITY()'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  44      var $hasInsertID = true;
  45      var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  46                                                            # concatenating a null value with a string yields a NULL result
  47  
  48  	function ADODB_odbc_mssql()
  49      {
  50          $this->ADODB_odbc();
  51          //$this->curmode = SQL_CUR_USE_ODBC;
  52      }
  53  
  54      // crashes php...
  55  	function ServerInfo()
  56      {
  57      global $ADODB_FETCH_MODE;
  58          $save = $ADODB_FETCH_MODE;
  59          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  60          $row = $this->GetRow("execute sp_server_info 2");
  61          $ADODB_FETCH_MODE = $save;
  62          if (!is_array($row)) return false;
  63          $arr['description'] = $row[2];
  64          $arr['version'] = ADOConnection::_findvers($arr['description']);
  65          return $arr;
  66      }
  67  
  68  	function IfNull( $field, $ifNull )
  69      {
  70          return " ISNULL($field, $ifNull) "; // if MS SQL Server
  71      }
  72  
  73  	function _insertid()
  74      {
  75      // SCOPE_IDENTITY()
  76      // Returns the last IDENTITY value inserted into an IDENTITY column in
  77      // the same scope. A scope is a module -- a stored procedure, trigger,
  78      // function, or batch. Thus, two statements are in the same scope if
  79      // they are in the same stored procedure, function, or batch.
  80              return $this->GetOne($this->identitySQL);
  81      }
  82  
  83  
  84  	function MetaForeignKeys($table, $owner=false, $upper=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" <[email protected]>
 254      // tested with MSSQL 2000
 255  	function MetaPrimaryKeys($table)
 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          if ($nrows > 0 && $offset <= 0) {
 282              $sql = preg_replace(
 283                  '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 284              $rs = $this->Execute($sql,$inputarr);
 285          } else
 286              $rs = ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 287  
 288          return $rs;
 289      }
 290  
 291      // Format date column in sql string given an input format that understands Y M D
 292  	function SQLDate($fmt, $col=false)
 293      {
 294          if (!$col) $col = $this->sysTimeStamp;
 295          $s = '';
 296  
 297          $len = strlen($fmt);
 298          for ($i=0; $i < $len; $i++) {
 299              if ($s) $s .= '+';
 300              $ch = $fmt[$i];
 301              switch($ch) {
 302              case 'Y':
 303              case 'y':
 304                  $s .= "datename(yyyy,$col)";
 305                  break;
 306              case 'M':
 307                  $s .= "convert(char(3),$col,0)";
 308                  break;
 309              case 'm':
 310                  $s .= "replace(str(month($col),2),' ','0')";
 311                  break;
 312              case 'Q':
 313              case 'q':
 314                  $s .= "datename(quarter,$col)";
 315                  break;
 316              case 'D':
 317              case 'd':
 318                  $s .= "replace(str(day($col),2),' ','0')";
 319                  break;
 320              case 'h':
 321                  $s .= "substring(convert(char(14),$col,0),13,2)";
 322                  break;
 323  
 324              case 'H':
 325                  $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 326                  break;
 327  
 328              case 'i':
 329                  $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 330                  break;
 331              case 's':
 332                  $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 333                  break;
 334              case 'a':
 335              case 'A':
 336                  $s .= "substring(convert(char(19),$col,0),18,2)";
 337                  break;
 338  
 339              default:
 340                  if ($ch == '\\') {
 341                      $i++;
 342                      $ch = substr($fmt,$i,1);
 343                  }
 344                  $s .= $this->qstr($ch);
 345                  break;
 346              }
 347          }
 348          return $s;
 349      }
 350  
 351  }
 352  
 353  class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 354  
 355      var $databaseType = 'odbc_mssql';
 356  
 357  	function ADORecordSet_odbc_mssql($id,$mode=false)
 358      {
 359          return $this->ADORecordSet_odbc($id,$mode);
 360      }
 361  }