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

   1 <?php
   2 /*
   3 V4.20 22 Feb 2004  (c) 2000-2004 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://php.weblogs.com/
  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 if (!defined('_ADODB_ODBC_LAYER')) {
  16         include(ADODB_DIR."/drivers/adodb-odbc.inc.php");
  17 }
  18
  19
  20 class  ADODB_odbc_mssql extends ADODB_odbc {
  21         var $databaseType = 'odbc_mssql';
  22         var $fmtDate = "'Y-m-d'";
  23         var $fmtTimeStamp = "'Y-m-d h:i:sA'";
  24         var $_bindInputArray = true;
  25         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'))";
  26         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'";
  27         var $hasTop = 'top';            // support mssql/interbase SELECT TOP 10 * FROM TABLE
  28         var $sysDate = 'GetDate()';
  29         var $sysTimeStamp = 'GetDate()';
  30         var $leftOuter = '*=';
  31         var $rightOuter = '=*';
  32         var $upperCase = 'upper';
  33         var $substr = 'substring';
  34         var $length = 'len';
  35         var $ansiOuter = true; // for mssql7 or later
  36         var $identitySQL = 'select @@IDENTITY'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  37         var $hasInsertID = true;
  38         var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  39                                                                                                                   # concatenating a null value with a string yields a NULL result
  40
  41         function ADODB_odbc_mssql()
  42         {
  43                 $this->ADODB_odbc();
  44                 $this->curmode = SQL_CUR_USE_ODBC;
  45         }
  46
  47         // crashes php...
  48         function ServerInfo()
  49         {
  50         global $ADODB_FETCH_MODE;
  51                 $save = $ADODB_FETCH_MODE;
  52                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  53                 $row = $this->GetRow("execute sp_server_info 2");
  54                 $ADODB_FETCH_MODE = $save;
  55                 if (!is_array($row)) return false;
  56                 $arr['description'] = $row[2];
  57                 $arr['version'] = ADOConnection::_findvers($arr['description']);
  58                 return $arr;
  59         }
  60
  61         function IfNull( $field, $ifNull )
  62         {
  63                 return " ISNULL($field, $ifNull) "; // if MS SQL Server
  64         }
  65
  66         function _insertid()
  67         {
  68         // SCOPE_IDENTITY()
  69         // Returns the last IDENTITY value inserted into an IDENTITY column in
  70         // the same scope. A scope is a module -- a stored procedure, trigger,
  71         // function, or batch. Thus, two statements are in the same scope if
  72         // they are in the same stored procedure, function, or batch.
  73                         return $this->GetOne($this->identitySQL);
  74         }
  75
  76
  77         function MetaForeignKeys($table, $owner=false, $upper=false)
  78         {
  79         global $ADODB_FETCH_MODE;
  80
  81                 $save = $ADODB_FETCH_MODE;
  82                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  83                 $table = $this->qstr(strtoupper($table));
  84
  85                 $sql =
  86 "select object_name(constid) as constraint_name,
  87         col_name(fkeyid, fkey) as column_name,
  88         object_name(rkeyid) as referenced_table_name,
  89         col_name(rkeyid, rkey) as referenced_column_name
  90 from sysforeignkeys
  91 where upper(object_name(fkeyid)) = $table
  92 order by constraint_name, referenced_table_name, keyno";
  93
  94                 $constraints =& $this->GetArray($sql);
  95
  96                 $ADODB_FETCH_MODE = $save;
  97
  98                 $arr = false;
  99                 foreach($constraints as $constr) {
 100                         //print_r($constr);
 101                         $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3];
 102                 }
 103                 if (!$arr) return false;
 104
 105                 $arr2 = false;
 106
 107                 foreach($arr as $k => $v) {
 108                         foreach($v as $a => $b) {
 109                                 if ($upper) $a = strtoupper($a);
 110                                 $arr2[$a] = $b;
 111                         }
 112                 }
 113                 return $arr2;
 114         }
 115
 116         function &MetaTables($ttype=false,$showSchema=false,$mask=false)
 117         {
 118                 if ($mask) {$this->debug=1;
 119                         $save = $this->metaTablesSQL;
 120                         $mask = $this->qstr($mask);
 121                         $this->metaTablesSQL .= " AND name like $mask";
 122                 }
 123                 $ret =& ADOConnection::MetaTables($ttype,$showSchema);
 124
 125                 if ($mask) {
 126                         $this->metaTablesSQL = $save;
 127                 }
 128                 return $ret;
 129         }
 130
 131         function &MetaColumns($table)
 132         {
 133                 return ADOConnection::MetaColumns($table);
 134         }
 135
 136         function _query($sql,$inputarr)
 137         {
 138                 if (is_string($sql)) $sql = str_replace('||','+',$sql);
 139                 return ADODB_odbc::_query($sql,$inputarr);
 140         }
 141
 142         // "Stein-Aksel Basma" <basma@accelero.no>
 143         // tested with MSSQL 2000
 144         function &MetaPrimaryKeys($table)
 145         {
 146                 $sql = "select k.column_name from information_schema.key_column_usage k,
 147                 information_schema.table_constraints tc
 148                 where tc.constraint_name = k.constraint_name and tc.constraint_type =
 149                 'PRIMARY KEY' and k.table_name = '$table'";
 150
 151                 $a = $this->GetCol($sql);
 152                 if ($a && sizeof($a)>0) return $a;
 153                 return false;
 154         }
 155
 156         function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 157         {
 158                 if ($nrows > 0 && $offset <= 0) {
 159                         $sql = preg_replace(
 160                                 '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 161                         $rs =& $this->Execute($sql,$inputarr);
 162                 } else
 163                         $rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 164
 165                 return $rs;
 166         }
 167
 168         // Format date column in sql string given an input format that understands Y M D
 169         function SQLDate($fmt, $col=false)
 170         {
 171                 if (!$col) $col = $this->sysTimeStamp;
 172                 $s = '';
 173
 174                 $len = strlen($fmt);
 175                 for ($i=0; $i < $len; $i++) {
 176                         if ($s) $s .= '+';
 177                         $ch = $fmt[$i];
 178                         switch($ch) {
 179                         case 'Y':
 180                         case 'y':
 181                                 $s .= "datename(yyyy,$col)";
 182                                 break;
 183                         case 'M':
 184                                 $s .= "convert(char(3),$col,0)";
 185                                 break;
 186                         case 'm':
 187                                 $s .= "replace(str(month($col),2),' ','0')";
 188                                 break;
 189                         case 'Q':
 190                         case 'q':
 191                                 $s .= "datename(quarter,$col)";
 192                                 break;
 193                         case 'D':
 194                         case 'd':
 195                                 $s .= "replace(str(day($col),2),' ','0')";
 196                                 break;
 197                         case 'h':
 198                                 $s .= "substring(convert(char(14),$col,0),13,2)";
 199                                 break;
 200
 201                         case 'H':
 202                                 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 203                                 break;
 204
 205                         case 'i':
 206                                 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 207                                 break;
 208                         case 's':
 209                                 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 210                                 break;
 211                         case 'a':
 212                         case 'A':
 213                                 $s .= "substring(convert(char(19),$col,0),18,2)";
 214                                 break;
 215
 216                         default:
 217                                 if ($ch == '\\') {
 218                                         $i++;
 219                                         $ch = substr($fmt,$i,1);
 220                                 }
 221                                 $s .= $this->qstr($ch);
 222                                 break;
 223                         }
 224                 }
 225                 return $s;
 226         }
 227
 228 }
 229
 230 class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 231
 232         var $databaseType = 'odbc_mssql';
 233
 234         function ADORecordSet_odbc_mssql($id,$mode=false)
 235         {
 236                 return $this->ADORecordSet_odbc($id,$mode);
 237         }
 238 }
 239 ?>