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

   1 <?php
   2 /*
   3 V5.14 8 Sept 2011  (c) 2000-2011 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 H: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 = "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'";
  31         var $hasTop = 'top';            // support mssql/interbase SELECT TOP 10 * FROM TABLE
  32         var $sysDate = 'GetDate()';
  33         var $sysTimeStamp = 'GetDate()';
  34         var $leftOuter = '*=';
  35         var $rightOuter = '=*';
  36         var $substr = 'substring';
  37         var $length = 'len';
  38         var $ansiOuter = true; // for mssql7 or later
  39         var $identitySQL = 'select SCOPE_IDENTITY()'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  40         var $hasInsertID = true;
  41         var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  42                                                                                                                   # concatenating a null value with a string yields a NULL result
  43
  44         function ADODB_odbc_mssql()
  45         {
  46                 $this->ADODB_odbc();
  47                 //$this->curmode = SQL_CUR_USE_ODBC;
  48         }
  49
  50         // crashes php...
  51         function ServerInfo()
  52         {
  53         global $ADODB_FETCH_MODE;
  54                 $save = $ADODB_FETCH_MODE;
  55                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  56                 $row = $this->GetRow("execute sp_server_info 2");
  57                 $ADODB_FETCH_MODE = $save;
  58                 if (!is_array($row)) return false;
  59                 $arr['description'] = $row[2];
  60                 $arr['version'] = ADOConnection::_findvers($arr['description']);
  61                 return $arr;
  62         }
  63
  64         function IfNull( $field, $ifNull )
  65         {
  66                 return " ISNULL($field, $ifNull) "; // if MS SQL Server
  67         }
  68
  69         function _insertid()
  70         {
  71         // SCOPE_IDENTITY()
  72         // Returns the last IDENTITY value inserted into an IDENTITY column in
  73         // the same scope. A scope is a module -- a stored procedure, trigger,
  74         // function, or batch. Thus, two statements are in the same scope if
  75         // they are in the same stored procedure, function, or batch.
  76                         return $this->GetOne($this->identitySQL);
  77         }
  78
  79
  80         function MetaForeignKeys($table, $owner=false, $upper=false)
  81         {
  82         global $ADODB_FETCH_MODE;
  83
  84                 $save = $ADODB_FETCH_MODE;
  85                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  86                 $table = $this->qstr(strtoupper($table));
  87
  88                 $sql =
  89 "select object_name(constid) as constraint_name,
  90         col_name(fkeyid, fkey) as column_name,
  91         object_name(rkeyid) as referenced_table_name,
  92         col_name(rkeyid, rkey) as referenced_column_name
  93 from sysforeignkeys
  94 where upper(object_name(fkeyid)) = $table
  95 order by constraint_name, referenced_table_name, keyno";
  96
  97                 $constraints = $this->GetArray($sql);
  98
  99                 $ADODB_FETCH_MODE = $save;
 100
 101                 $arr = false;
 102                 foreach($constraints as $constr) {
 103                         //print_r($constr);
 104                         $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3];
 105                 }
 106                 if (!$arr) return false;
 107
 108                 $arr2 = false;
 109
 110                 foreach($arr as $k => $v) {
 111                         foreach($v as $a => $b) {
 112                                 if ($upper) $a = strtoupper($a);
 113                                 $arr2[$a] = $b;
 114                         }
 115                 }
 116                 return $arr2;
 117         }
 118
 119         function MetaTables($ttype=false,$showSchema=false,$mask=false)
 120         {
 121                 if ($mask) {$this->debug=1;
 122                         $save = $this->metaTablesSQL;
 123                         $mask = $this->qstr($mask);
 124                         $this->metaTablesSQL .= " AND name like $mask";
 125                 }
 126                 $ret = ADOConnection::MetaTables($ttype,$showSchema);
 127
 128                 if ($mask) {
 129                         $this->metaTablesSQL = $save;
 130                 }
 131                 return $ret;
 132         }
 133
 134         function MetaColumns($table, $normalize=true)
 135         {
 136                 $arr = ADOConnection::MetaColumns($table);
 137                 return $arr;
 138         }
 139
 140
 141         function MetaIndexes($table,$primary=false, $owner=false)
 142         {
 143                 $table = $this->qstr($table);
 144
 145                 $sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno,
 146                         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,
 147                         CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
 148                         FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id
 149                         INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid
 150                         INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
 151                         WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
 152                         ORDER BY O.name, I.Name, K.keyno";
 153
 154                 global $ADODB_FETCH_MODE;
 155                 $save = $ADODB_FETCH_MODE;
 156         $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 157         if ($this->fetchMode !== FALSE) {
 158                 $savem = $this->SetFetchMode(FALSE);
 159         }
 160
 161         $rs = $this->Execute($sql);
 162         if (isset($savem)) {
 163                 $this->SetFetchMode($savem);
 164         }
 165         $ADODB_FETCH_MODE = $save;
 166
 167         if (!is_object($rs)) {
 168                 return FALSE;
 169         }
 170
 171                 $indexes = array();
 172                 while ($row = $rs->FetchRow()) {
 173                         if (!$primary && $row[5]) continue;
 174
 175             $indexes[$row[0]]['unique'] = $row[6];
 176             $indexes[$row[0]]['columns'][] = $row[1];
 177         }
 178         return $indexes;
 179         }
 180
 181         function _query($sql,$inputarr=false)
 182         {
 183                 if (is_string($sql)) $sql = str_replace('||','+',$sql);
 184                 return ADODB_odbc::_query($sql,$inputarr);
 185         }
 186
 187         function SetTransactionMode( $transaction_mode )
 188         {
 189                 $this->_transmode  = $transaction_mode;
 190                 if (empty($transaction_mode)) {
 191                         $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
 192                         return;
 193                 }
 194                 if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
 195                 $this->Execute("SET TRANSACTION ".$transaction_mode);
 196         }
 197
 198         // "Stein-Aksel Basma" <basma@accelero.no>
 199         // tested with MSSQL 2000
 200         function MetaPrimaryKeys($table)
 201         {
 202         global $ADODB_FETCH_MODE;
 203
 204                 $schema = '';
 205                 $this->_findschema($table,$schema);
 206                 //if (!$schema) $schema = $this->database;
 207                 if ($schema) $schema = "and k.table_catalog like '$schema%'";
 208
 209                 $sql = "select distinct k.column_name,ordinal_position from information_schema.key_column_usage k,
 210                 information_schema.table_constraints tc
 211                 where tc.constraint_name = k.constraint_name and tc.constraint_type =
 212                 'PRIMARY KEY' and k.table_name = '$table' $schema order by ordinal_position ";
 213
 214                 $savem = $ADODB_FETCH_MODE;
 215                 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
 216                 $a = $this->GetCol($sql);
 217                 $ADODB_FETCH_MODE = $savem;
 218
 219                 if ($a && sizeof($a)>0) return $a;
 220                 $false = false;
 221                 return $false;
 222         }
 223
 224         function SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 225         {
 226                 if ($nrows > 0 && $offset <= 0) {
 227                         $sql = preg_replace(
 228                                 '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 229                         $rs = $this->Execute($sql,$inputarr);
 230                 } else
 231                         $rs = ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 232
 233                 return $rs;
 234         }
 235
 236         // Format date column in sql string given an input format that understands Y M D
 237         function SQLDate($fmt, $col=false)
 238         {
 239                 if (!$col) $col = $this->sysTimeStamp;
 240                 $s = '';
 241
 242                 $len = strlen($fmt);
 243                 for ($i=0; $i < $len; $i++) {
 244                         if ($s) $s .= '+';
 245                         $ch = $fmt[$i];
 246                         switch($ch) {
 247                         case 'Y':
 248                         case 'y':
 249                                 $s .= "datename(yyyy,$col)";
 250                                 break;
 251                         case 'M':
 252                                 $s .= "convert(char(3),$col,0)";
 253                                 break;
 254                         case 'm':
 255                                 $s .= "replace(str(month($col),2),' ','0')";
 256                                 break;
 257                         case 'Q':
 258                         case 'q':
 259                                 $s .= "datename(quarter,$col)";
 260                                 break;
 261                         case 'D':
 262                         case 'd':
 263                                 $s .= "replace(str(day($col),2),' ','0')";
 264                                 break;
 265                         case 'h':
 266                                 $s .= "substring(convert(char(14),$col,0),13,2)";
 267                                 break;
 268
 269                         case 'H':
 270                                 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 271                                 break;
 272
 273                         case 'i':
 274                                 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 275                                 break;
 276                         case 's':
 277                                 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 278                                 break;
 279                         case 'a':
 280                         case 'A':
 281                                 $s .= "substring(convert(char(19),$col,0),18,2)";
 282                                 break;
 283
 284                         default:
 285                                 if ($ch == '\\') {
 286                                         $i++;
 287                                         $ch = substr($fmt,$i,1);
 288                                 }
 289                                 $s .= $this->qstr($ch);
 290                                 break;
 291                         }
 292                 }
 293                 return $s;
 294         }
 295
 296 }
 297
 298 class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 299
 300         var $databaseType = 'odbc_mssql';
 301
 302         function ADORecordSet_odbc_mssql($id,$mode=false)
 303         {
 304                 return $this->ADORecordSet_odbc($id,$mode);
 305         }
 306 }
 307 ?>