lib/adodb/drivers/adodb-odbc_mssql.inc.php

   1 <?php
   2 /*
   3 V4.98 13 Feb 2008  (c) 2000-2008 John Lim (jlim#natsoft.com.my). 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 H:i:s'";
  27         var $_bindInputArray = true;
  28         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'))";
  29         var $metaColumnsSQL = "select c.name,t.name,c.length from syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id where o.name='%s'";
  30         var $hasTop = 'top';            // support mssql/interbase SELECT TOP 10 * FROM TABLE
  31         var $sysDate = 'GetDate()';
  32         var $sysTimeStamp = 'GetDate()';
  33         var $leftOuter = '*=';
  34         var $rightOuter = '=*';
  35         var $substr = 'substring';
  36         var $length = 'len';
  37         var $ansiOuter = true; // for mssql7 or later
  38         var $identitySQL = 'select SCOPE_IDENTITY()'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  39         var $hasInsertID = true;
  40         var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  41                                                                                                                   # concatenating a null value with a string yields a NULL result
  42
  43         function ADODB_odbc_mssql()
  44         {
  45                 $this->ADODB_odbc();
  46                 //$this->curmode = SQL_CUR_USE_ODBC;
  47         }
  48
  49         // crashes php...
  50         function ServerInfo()
  51         {
  52         global $ADODB_FETCH_MODE;
  53                 $save = $ADODB_FETCH_MODE;
  54                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  55                 $row = $this->GetRow("execute sp_server_info 2");
  56                 $ADODB_FETCH_MODE = $save;
  57                 if (!is_array($row)) return false;
  58                 $arr['description'] = $row[2];
  59                 $arr['version'] = ADOConnection::_findvers($arr['description']);
  60                 return $arr;
  61         }
  62
  63         function IfNull( $field, $ifNull )
  64         {
  65                 return " ISNULL($field, $ifNull) "; // if MS SQL Server
  66         }
  67
  68         function _insertid()
  69         {
  70         // SCOPE_IDENTITY()
  71         // Returns the last IDENTITY value inserted into an IDENTITY column in
  72         // the same scope. A scope is a module -- a stored procedure, trigger,
  73         // function, or batch. Thus, two statements are in the same scope if
  74         // they are in the same stored procedure, function, or batch.
  75                         return $this->GetOne($this->identitySQL);
  76         }
  77
  78
  79         function MetaForeignKeys($table, $owner=false, $upper=false)
  80         {
  81         global $ADODB_FETCH_MODE;
  82
  83                 $save = $ADODB_FETCH_MODE;
  84                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  85                 $table = $this->qstr(strtoupper($table));
  86
  87                 $sql =
  88 "select object_name(constid) as constraint_name,
  89         col_name(fkeyid, fkey) as column_name,
  90         object_name(rkeyid) as referenced_table_name,
  91         col_name(rkeyid, rkey) as referenced_column_name
  92 from sysforeignkeys
  93 where upper(object_name(fkeyid)) = $table
  94 order by constraint_name, referenced_table_name, keyno";
  95
  96                 $constraints =& $this->GetArray($sql);
  97
  98                 $ADODB_FETCH_MODE = $save;
  99
 100                 $arr = false;
 101                 foreach($constraints as $constr) {
 102                         //print_r($constr);
 103                         $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3];
 104                 }
 105                 if (!$arr) return false;
 106
 107                 $arr2 = false;
 108
 109                 foreach($arr as $k => $v) {
 110                         foreach($v as $a => $b) {
 111                                 if ($upper) $a = strtoupper($a);
 112                                 $arr2[$a] = $b;
 113                         }
 114                 }
 115                 return $arr2;
 116         }
 117
 118         function &MetaTables($ttype=false,$showSchema=false,$mask=false)
 119         {
 120                 if ($mask) {$this->debug=1;
 121                         $save = $this->metaTablesSQL;
 122                         $mask = $this->qstr($mask);
 123                         $this->metaTablesSQL .= " AND name like $mask";
 124                 }
 125                 $ret =& ADOConnection::MetaTables($ttype,$showSchema);
 126
 127                 if ($mask) {
 128                         $this->metaTablesSQL = $save;
 129                 }
 130                 return $ret;
 131         }
 132
 133         function &MetaColumns($table)
 134         {
 135                 $arr = ADOConnection::MetaColumns($table);
 136                 return $arr;
 137         }
 138
 139
 140         function &MetaIndexes($table,$primary=false)
 141         {
 142                 $table = $this->qstr($table);
 143
 144                 $sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno,
 145                         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,
 146                         CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
 147                         FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id
 148                         INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid
 149                         INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
 150                         WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
 151                         ORDER BY O.name, I.Name, K.keyno";
 152
 153                 global $ADODB_FETCH_MODE;
 154                 $save = $ADODB_FETCH_MODE;
 155         $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 156         if ($this->fetchMode !== FALSE) {
 157                 $savem = $this->SetFetchMode(FALSE);
 158         }
 159
 160         $rs = $this->Execute($sql);
 161         if (isset($savem)) {
 162                 $this->SetFetchMode($savem);
 163         }
 164         $ADODB_FETCH_MODE = $save;
 165
 166         if (!is_object($rs)) {
 167                 return FALSE;
 168         }
 169
 170                 $indexes = array();
 171                 while ($row = $rs->FetchRow()) {
 172                         if (!$primary && $row[5]) continue;
 173
 174             $indexes[$row[0]]['unique'] = $row[6];
 175             $indexes[$row[0]]['columns'][] = $row[1];
 176         }
 177         return $indexes;
 178         }
 179
 180         function _query($sql,$inputarr)
 181         {
 182                 if (is_string($sql)) $sql = str_replace('||','+',$sql);
 183                 return ADODB_odbc::_query($sql,$inputarr);
 184         }
 185
 186         function SetTransactionMode( $transaction_mode )
 187         {
 188                 $this->_transmode  = $transaction_mode;
 189                 if (empty($transaction_mode)) {
 190                         $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
 191                         return;
 192                 }
 193                 if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
 194                 $this->Execute("SET TRANSACTION ".$transaction_mode);
 195         }
 196
 197         // "Stein-Aksel Basma" <basma@accelero.no>
 198         // tested with MSSQL 2000
 199         function &MetaPrimaryKeys($table)
 200         {
 201         global $ADODB_FETCH_MODE;
 202
 203                 $schema = '';
 204                 $this->_findschema($table,$schema);
 205                 //if (!$schema) $schema = $this->database;
 206                 if ($schema) $schema = "and k.table_catalog like '$schema%'";
 207
 208                 $sql = "select distinct k.column_name,ordinal_position from information_schema.key_column_usage k,
 209                 information_schema.table_constraints tc
 210                 where tc.constraint_name = k.constraint_name and tc.constraint_type =
 211                 'PRIMARY KEY' and k.table_name = '$table' $schema order by ordinal_position ";
 212
 213                 $savem = $ADODB_FETCH_MODE;
 214                 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
 215                 $a = $this->GetCol($sql);
 216                 $ADODB_FETCH_MODE = $savem;
 217
 218                 if ($a && sizeof($a)>0) return $a;
 219                 $false = false;
 220                 return $false;
 221         }
 222
 223         function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 224         {
 225                 if ($nrows > 0 && $offset <= 0) {
 226                         $sql = preg_replace(
 227                                 '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 228                         $rs =& $this->Execute($sql,$inputarr);
 229                 } else
 230                         $rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 231
 232                 return $rs;
 233         }
 234
 235         // Format date column in sql string given an input format that understands Y M D
 236         function SQLDate($fmt, $col=false)
 237         {
 238                 if (!$col) $col = $this->sysTimeStamp;
 239                 $s = '';
 240
 241                 $len = strlen($fmt);
 242                 for ($i=0; $i < $len; $i++) {
 243                         if ($s) $s .= '+';
 244                         $ch = $fmt[$i];
 245                         switch($ch) {
 246                         case 'Y':
 247                         case 'y':
 248                                 $s .= "datename(yyyy,$col)";
 249                                 break;
 250                         case 'M':
 251                                 $s .= "convert(char(3),$col,0)";
 252                                 break;
 253                         case 'm':
 254                                 $s .= "replace(str(month($col),2),' ','0')";
 255                                 break;
 256                         case 'Q':
 257                         case 'q':
 258                                 $s .= "datename(quarter,$col)";
 259                                 break;
 260                         case 'D':
 261                         case 'd':
 262                                 $s .= "replace(str(day($col),2),' ','0')";
 263                                 break;
 264                         case 'h':
 265                                 $s .= "substring(convert(char(14),$col,0),13,2)";
 266                                 break;
 267
 268                         case 'H':
 269                                 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 270                                 break;
 271
 272                         case 'i':
 273                                 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 274                                 break;
 275                         case 's':
 276                                 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 277                                 break;
 278                         case 'a':
 279                         case 'A':
 280                                 $s .= "substring(convert(char(19),$col,0),18,2)";
 281                                 break;
 282
 283                         default:
 284                                 if ($ch == '\\') {
 285                                         $i++;
 286                                         $ch = substr($fmt,$i,1);
 287                                 }
 288                                 $s .= $this->qstr($ch);
 289                                 break;
 290                         }
 291                 }
 292                 return $s;
 293         }
 294
 295 }
 296
 297 class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 298
 299         var $databaseType = 'odbc_mssql';
 300
 301         function ADORecordSet_odbc_mssql($id,$mode=false)
 302         {
 303                 return $this->ADORecordSet_odbc($id,$mode);
 304         }
 305 }
 306 ?>