📄 adodb-mssql.inc.php
字号:
<?php
/*
V4.80 8 Mar 2006 (c) 2000-2006 John Lim (jlim@natsoft.com.my). All rights reserved.
Released under both BSD license and Lesser GPL library license.
Whenever there is any discrepancy between the two licenses,
the BSD license will take precedence.
Set tabs to 4 for best viewing.
Latest version is available at http://adodb.sourceforge.net
Native mssql driver. Requires mssql client. Works on Windows.
To configure for Unix, see
http://phpbuilder.com/columns/alberto20000919.php3
*/
// security - hide paths
if (!defined('ADODB_DIR')) die();
//----------------------------------------------------------------
// MSSQL returns dates with the format Oct 13 2002 or 13 Oct 2002
// and this causes tons of problems because localized versions of
// MSSQL will return the dates in dmy or mdy order; and also the
// month strings depends on what language has been configured. The
// following two variables allow you to control the localization
// settings - Ugh.
//
// MORE LOCALIZATION INFO
// ----------------------
// To configure datetime, look for and modify sqlcommn.loc,
// typically found in c:\mssql\install
// Also read :
// http://support.microsoft.com/default.aspx?scid=kb;EN-US;q220918
// Alternatively use:
// CONVERT(char(12),datecol,120)
//----------------------------------------------------------------
// has datetime converstion to YYYY-MM-DD format, and also mssql_fetch_assoc
if (ADODB_PHPVER >= 0x4300) {
// docs say 4.2.0, but testing shows only since 4.3.0 does it work!
ini_set('mssql.datetimeconvert',0);
} else {
global $ADODB_mssql_mths; // array, months must be upper-case
$ADODB_mssql_date_order = 'mdy';
$ADODB_mssql_mths = array(
'JAN'=>1,'FEB'=>2,'MAR'=>3,'APR'=>4,'MAY'=>5,'JUN'=>6,
'JUL'=>7,'AUG'=>8,'SEP'=>9,'OCT'=>10,'NOV'=>11,'DEC'=>12);
}
//---------------------------------------------------------------------------
// Call this to autoset $ADODB_mssql_date_order at the beginning of your code,
// just after you connect to the database. Supports mdy and dmy only.
// Not required for PHP 4.2.0 and above.
function AutoDetect_MSSQL_Date_Order($conn)
{
global $ADODB_mssql_date_order;
$adate = $conn->GetOne('select getdate()');
if ($adate) {
$anum = (int) $adate;
if ($anum > 0) {
if ($anum > 31) {
//ADOConnection::outp( "MSSQL: YYYY-MM-DD date format not supported currently");
} else
$ADODB_mssql_date_order = 'dmy';
} else
$ADODB_mssql_date_order = 'mdy';
}
}
class ADODB_mssql extends ADOConnection {
var $databaseType = "mssql";
var $dataProvider = "mssql";
var $replaceQuote = "''"; // string to use to replace quotes
var $fmtDate = "'Y-m-d'";
var $fmtTimeStamp = "'Y-m-d H:i:s'";
var $hasInsertID = true;
var $substr = "substring";
var $length = 'len';
var $hasAffectedRows = true;
var $metaDatabasesSQL = "select name from sysdatabases where name <> 'master'";
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','dtproperties'))";
var $metaColumnsSQL = # xtype==61 is datetime
"select c.name,t.name,c.length,
(case when c.xusertype=61 then 0 else c.xprec end),
(case when c.xusertype=61 then 0 else c.xscale end)
from syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id where o.name='%s'";
var $hasTop = 'top'; // support mssql SELECT TOP 10 * FROM TABLE
var $hasGenID = true;
var $sysDate = 'convert(datetime,convert(char,GetDate(),102),102)';
var $sysTimeStamp = 'GetDate()';
var $_has_mssql_init;
var $maxParameterLen = 4000;
var $arrayClass = 'ADORecordSet_array_mssql';
var $uniqueSort = true;
var $leftOuter = '*=';
var $rightOuter = '=*';
var $ansiOuter = true; // for mssql7 or later
var $poorAffectedRows = true;
var $identitySQL = 'select @@IDENTITY'; // 'select SCOPE_IDENTITY'; # for mssql 2000
var $uniqueOrderBy = true;
var $_bindInputArray = true;
function ADODB_mssql()
{
$this->_has_mssql_init = (strnatcmp(PHP_VERSION,'4.1.0')>=0);
}
function ServerInfo()
{
global $ADODB_FETCH_MODE;
$stmt = $this->PrepareSP('sp_server_info');
$val = 2;
if ($this->fetchMode === false) {
$savem = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
} else
$savem = $this->SetFetchMode(ADODB_FETCH_NUM);
$this->Parameter($stmt,$val,'attribute_id');
$row = $this->GetRow($stmt);
//$row = $this->GetRow("execute sp_server_info 2");
if ($this->fetchMode === false) {
$ADODB_FETCH_MODE = $savem;
} else
$this->SetFetchMode($savem);
$arr['description'] = $row[2];
$arr['version'] = ADOConnection::_findvers($arr['description']);
return $arr;
}
function IfNull( $field, $ifNull )
{
return " ISNULL($field, $ifNull) "; // if MS SQL Server
}
function _insertid()
{
// SCOPE_IDENTITY()
// Returns the last IDENTITY value inserted into an IDENTITY column in
// the same scope. A scope is a module -- a stored procedure, trigger,
// function, or batch. Thus, two statements are in the same scope if
// they are in the same stored procedure, function, or batch.
return $this->GetOne($this->identitySQL);
}
function _affectedrows()
{
return $this->GetOne('select @@rowcount');
}
var $_dropSeqSQL = "drop table %s";
function CreateSequence($seq='adodbseq',$start=1)
{
$this->Execute('BEGIN TRANSACTION adodbseq');
$start -= 1;
$this->Execute("create table $seq (id float(53))");
$ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)");
if (!$ok) {
$this->Execute('ROLLBACK TRANSACTION adodbseq');
return false;
}
$this->Execute('COMMIT TRANSACTION adodbseq');
return true;
}
function GenID($seq='adodbseq',$start=1)
{
//$this->debug=1;
$this->Execute('BEGIN TRANSACTION adodbseq');
$ok = $this->Execute("update $seq with (tablock,holdlock) set id = id + 1");
if (!$ok) {
$this->Execute("create table $seq (id float(53))");
$ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)");
if (!$ok) {
$this->Execute('ROLLBACK TRANSACTION adodbseq');
return false;
}
$this->Execute('COMMIT TRANSACTION adodbseq');
return $start;
}
$num = $this->GetOne("select id from $seq");
$this->Execute('COMMIT TRANSACTION adodbseq');
return $num;
// in old implementation, pre 1.90, we returned GUID...
//return $this->GetOne("SELECT CONVERT(varchar(255), NEWID()) AS 'Char'");
}
function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
{
if ($nrows > 0 && $offset <= 0) {
$sql = preg_replace(
'/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
$rs =& $this->Execute($sql,$inputarr);
} else
$rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
return $rs;
}
// Format date column in sql string given an input format that understands Y M D
function SQLDate($fmt, $col=false)
{
if (!$col) $col = $this->sysTimeStamp;
$s = '';
$len = strlen($fmt);
for ($i=0; $i < $len; $i++) {
if ($s) $s .= '+';
$ch = $fmt[$i];
switch($ch) {
case 'Y':
case 'y':
$s .= "datename(yyyy,$col)";
break;
case 'M':
$s .= "convert(char(3),$col,0)";
break;
case 'm':
$s .= "replace(str(month($col),2),' ','0')";
break;
case 'Q':
case 'q':
$s .= "datename(quarter,$col)";
break;
case 'D':
case 'd':
$s .= "replace(str(day($col),2),' ','0')";
break;
case 'h':
$s .= "substring(convert(char(14),$col,0),13,2)";
break;
case 'H':
$s .= "replace(str(datepart(hh,$col),2),' ','0')";
break;
case 'i':
$s .= "replace(str(datepart(mi,$col),2),' ','0')";
break;
case 's':
$s .= "replace(str(datepart(ss,$col),2),' ','0')";
break;
case 'a':
case 'A':
$s .= "substring(convert(char(19),$col,0),18,2)";
break;
default:
if ($ch == '\\') {
$i++;
$ch = substr($fmt,$i,1);
}
$s .= $this->qstr($ch);
break;
}
}
return $s;
}
function BeginTrans()
{
if ($this->transOff) return true;
$this->transCnt += 1;
$this->Execute('BEGIN TRAN');
return true;
}
function CommitTrans($ok=true)
{
if ($this->transOff) return true;
if (!$ok) return $this->RollbackTrans();
if ($this->transCnt) $this->transCnt -= 1;
$this->Execute('COMMIT TRAN');
return true;
}
function RollbackTrans()
{
if ($this->transOff) return true;
if ($this->transCnt) $this->transCnt -= 1;
$this->Execute('ROLLBACK TRAN');
return true;
}
/*
Usage:
$this->BeginTrans();
$this->RowLock('table1,table2','table1.id=33 and table2.id=table1.id'); # lock row 33 for both tables
# some operation on both tables table1 and table2
$this->CommitTrans();
See http://www.swynk.com/friends/achigrik/SQL70Locks.asp
*/
function RowLock($tables,$where,$flds='top 1 null as ignore')
{
if (!$this->transCnt) $this->BeginTrans();
return $this->GetOne("select $flds from $tables with (ROWLOCK,HOLDLOCK) where $where");
}
function &MetaIndexes($table,$primary=false)
{
$table = $this->qstr($table);
$sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno,
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,
CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id
INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid
INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
ORDER BY O.name, I.Name, K.keyno";
global $ADODB_FETCH_MODE;
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== FALSE) {
$savem = $this->SetFetchMode(FALSE);
}
$rs = $this->Execute($sql);
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -