3 V4.22 15 Apr 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.
9 Latest version is available at http://php.weblogs.com/
11 MSSQL support via ODBC. Requires ODBC. Works on Windows and Unix.
12 For Unix configuration, see http://phpbuilder.com/columns/alberto20000919.php3
15 if (!defined('_ADODB_ODBC_LAYER')) {
16 include(ADODB_DIR . "/drivers/adodb-odbc.inc.php");
19 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';
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
41 function ADODB_odbc_mssql()
44 $this->curmode = SQL_CUR_USE_ODBC;
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']);
61 function IfNull($field, $ifNull)
63 return " ISNULL($field, $ifNull) "; // if MS SQL Server
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);
76 function MetaForeignKeys($table, $owner = false, $upper = false)
78 global $ADODB_FETCH_MODE;
80 $save = $ADODB_FETCH_MODE;
81 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
82 $table = $this->qstr(strtoupper($table));
85 "select object_name(constid) as constraint_name,
86 col_name(fkeyid, fkey) as column_name,
87 object_name(rkeyid) as referenced_table_name,
88 col_name(rkeyid, rkey) as referenced_column_name
90 where upper(object_name(fkeyid)) = $table
91 order by constraint_name, referenced_table_name, keyno";
93 $constraints =& $this->GetArray($sql);
95 $ADODB_FETCH_MODE = $save;
98 foreach ($constraints as $constr) {
100 $arr[$constr[0]][$constr[2]][] = $constr[1] . '=' . $constr[3];
102 if (!$arr) return false;
106 foreach ($arr as $k => $v) {
107 foreach ($v as $a => $b) {
108 if ($upper) $a = strtoupper($a);
115 function &MetaTables($ttype = false, $showSchema = false, $mask = false)
119 $save = $this->metaTablesSQL;
120 $mask = $this->qstr($mask);
121 $this->metaTablesSQL .= " AND name like $mask";
123 $ret =& ADOConnection::MetaTables($ttype, $showSchema);
126 $this->metaTablesSQL = $save;
131 function &MetaColumns($table)
133 return ADOConnection::MetaColumns($table);
136 function _query($sql, $inputarr)
138 if (is_string($sql)) $sql = str_replace('||', '+', $sql);
139 return ADODB_odbc::_query($sql, $inputarr);
142 // "Stein-Aksel Basma" <basma@accelero.no>
143 // tested with MSSQL 2000
144 function &MetaPrimaryKeys($table)
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'";
151 $a = $this->GetCol($sql);
152 if ($a && sizeof($a) > 0) return $a;
156 function &SelectLimit($sql, $nrows = -1, $offset = -1, $inputarr = false, $secs2cache = 0)
158 if ($nrows > 0 && $offset <= 0) {
160 '/(^\s*select\s+(distinctrow|distinct)?)/i', '\\1 ' . $this->hasTop . " $nrows ", $sql);
161 $rs =& $this->Execute($sql, $inputarr);
163 $rs =& ADOConnection::SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache);
168 // Format date column in sql string given an input format that understands Y M D
169 function SQLDate($fmt, $col = false)
171 if (!$col) $col = $this->sysTimeStamp;
175 for ($i = 0; $i < $len; $i++) {
181 $s .= "datename(yyyy,$col)";
184 $s .= "convert(char(3),$col,0)";
187 $s .= "replace(str(month($col),2),' ','0')";
191 $s .= "datename(quarter,$col)";
195 $s .= "replace(str(day($col),2),' ','0')";
198 $s .= "substring(convert(char(14),$col,0),13,2)";
202 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
206 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
209 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
213 $s .= "substring(convert(char(19),$col,0),18,2)";
219 $ch = substr($fmt, $i, 1);
221 $s .= $this->qstr($ch);
230 class ADORecordSet_odbc_mssql extends ADORecordSet_odbc
233 var $databaseType = 'odbc_mssql';
235 function ADORecordSet_odbc_mssql($id, $mode = false)
237 return $this->ADORecordSet_odbc($id, $mode);