从 MySQL 转换 DataTables 时 SQLSRV 参数无效

Posted 2023-05-09

【中文标题】从 MySQL 转换 DataTables 时 SQLSRV 参数无效

【英文标题】：SQLSRV Invalid parameter when converting DataTables from MySQL

【发布时间】：2014-12-04 13:32:26

【问题描述】：

我正在尝试转换： http://www.datatables.net/examples/server_side/server_side.html

使用 SQLSRV，这是我目前的代码：

<?php

ini_set("memory_limit",-1);
define('IN_INDEX', 1);
require_once 'config.php';

    $aColumns = array( 'ID', 'CardNumber');

    /* Indexed column (used for fast and accurate table cardinality) */
    $sIndexColumn = "ID";

    /* DB table to use */
    $sTable = "ActivityLog";


    /* 
     * Paging
     */
    $sLimit = "";
    if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
    
    $sLimit = "OFFSET  ".$_GET['iDisplayStart']." ROWS 
                                FETCH NEXT ".$_GET['iDisplayLength']." ROWS ONLY "; 
    


    /*
     * Ordering
     */
    if ( isset( $_GET['iSortCol_0'] ) )
    
        $sOrder = "ORDER BY  ";
        for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
        
            if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
            
                $sOrder .= $aColumns[ intval( $_GET['iSortCol_'.$i] ) ]."
                    ".addslashes( $_GET['sSortDir_'.$i] ) .", ";
            
        

        $sOrder = substr_replace( $sOrder, "", -2 );
        if ( $sOrder == "ORDER BY" )
        
            $sOrder = "";
        
    


    /* 
     * Filtering
     * NOTE this does not match the built-in DataTables filtering which does it
     * word by word on any field. It's possible to do here, but concerned about efficiency
     * on very large tables, and mysql's regex functionality is very limited
     */
    $sWhere = "";
    if ( $_GET['sSearch'] != "" )
    
        $sWhere = "WHERE (";
        for ( $i=0 ; $i<count($aColumns) ; $i++ )
        
            $sWhere .= $aColumns[$i]." LIKE '%".addslashes( $_GET['sSearch'] )."%' OR ";
        
        $sWhere = substr_replace( $sWhere, "", -3 );
        $sWhere .= ')';
    

    /* Individual column filtering */
    for ( $i=0 ; $i<count($aColumns) ; $i++ )
    
        if ( $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
        
            if ( $sWhere == "" )
            
                $sWhere = "WHERE ";
            
            else
            
                $sWhere .= " AND ";
            
            $sWhere .= $aColumns[$i]." LIKE '%".addslashes($_GET['sSearch_'.$i])."%' ";
        
    


    /*
     * SQL queries
     * Get data to display
     */
    $sQuery = "
        SELECT COUNT (*) OVER () AS ROW_COUNT ".str_replace(" , ", " ", implode(", ", $aColumns))."
        FROM   $sTable
        $sWhere
        $sOrder
        $sLimit
    ";
    $rResult = sqlsrv_query( $sQuery ) or die(print_r(sqlsrv_errors()));

    /* Data set length after filtering */
    $sQuery = "
        SELECT @@ROWCOUNT
    ";
    $rResultFilterTotal = sqlsrv_query( $sQuery ) or die(print_r(sqlsrv_errors()));
    $aResultFilterTotal = sqlsrv_fetch_array($rResultFilterTotal);
    $iFilteredTotal = $aResultFilterTotal[0];

    /* Total data set length */
    $sQuery = "
        SELECT COUNT(".$sIndexColumn.")
        FROM   $sTable
    ";
    $rResultTotal = sqlsrv_query( $sQuery ) or die(print_r(sqlsrv_errors()));
    $aResultTotal = sqlsrv_fetch_array($rResultTotal);
    $iTotal = $aResultTotal[0];


    /*
     * Output
     */
    $output = array(
        "sEcho" => intval($_GET['sEcho']),
        "iTotalRecords" => $iTotal,
        "iTotalDisplayRecords" => $iFilteredTotal,
        "aaData" => array()
    );

    while ( $aRow = sqlsrv_fetch_array( $rResult ) )
    
        $row = array();
        for ( $i=0 ; $i<count($aColumns) ; $i++ )
        
            if ( $aColumns[$i] == "version" )
            
                /* Special output formatting for 'version' column */
                $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
            
            else if ( $aColumns[$i] != ' ' )
            
                /* General output */
                $row[] = $aRow[ $aColumns[$i] ];
            
        
        $output['aaData'][] = $row;
    

    echo json_encode( $output );
?>

运行时出现此错误：

数组（[0] => 数组（[0] => IMSSP [SQLSTATE] => IMSSP [1] => -14 [代码] => -14 [2] => 向 sqlsrv_query 传递了一个无效参数。 [消息] => 向 sqlsrv_query 传递了一个无效参数。 ) ) 1

这就是我与 SQL Server 2008 建立连接的方式：

$pdo = new PDO("sqlsrv:Server=$DB_HOST;Database=$DB_DBNAME", $DB_USER, $DB_PWD);

我不太确定实际问题是什么，也看不到要检查的行号。

编辑：我正在使用的 HTML：

<table id="mainTable" class="table table-hover table-bordered table-striped table-condensed" >
    <thead>
        <tr>
            <th>ID</th>
            <th>CardNumber</th>
        </tr>
    </thead>

    <tfoot>
        <tr>
            <th>ID</th>
            <th>CardNumber</th>
        </tr>
    </tfoot>


</table>

</div>
</div>
</div>


<script type="text/javascript" charset="utf-8">
            $(document).ready(function() 

            $('#mainTable').dataTable( 

            "bProcessing": true,
            "bServerSide": true,
            "sAjaxSource": "http://localhost/datatables.php"

                 );
             );
        </script>

【问题讨论】：

如果您使用 PDO 连接，则不应使用任何 sqlsrv_*() 函数，而应使用 PDO 对象执行所有操作。 php.net/manual/en/book.pdo.php

或者，不要连接 PDO，而是使用 connect via sqlsrv_connect()，但 PDO 可能是更好的选择，因为它的预处理语句 API（实际上是它的整个 API）在您将来可能使用的任何 RDBMS 中都是一致的.

如果您使用sqlsrv_connect()，这将是修改代码的更简单路径，sqlsrv_query() 等函数期​​望连接资源作为第一个参数。这就是报告的错误 - 您传递了一个 SQL 字符串作为其第一个参数而不是连接，但传递您的 PDO 对象也不起作用。

感谢您的回复，我会尝试使用sqlsrv_connect() 并为您提供最新信息。

谢谢，我通过了这个错误，但现在我收到另一个提示，Incorrect syntax near 'ID'

【参考方案1】：

最后我在Michael Berkowski的帮助下修复了它

这是我的最终代码：

<?php

$serverName = ""; //serverName\instanceName
$connectionInfo = array( "Database"=>"", "UID"=>"", "PWD"=>"");
$conn = sqlsrv_connect( $serverName, $connectionInfo);

    /*
     * Script:    DataTables server-side script for PHP and MySQL
     * Copyright: 2010 - Allan Jardine
     * License:   GPL v2 or BSD (3-point)
     */

    /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
     * Easy set variables
     */

    /* Array of database columns which should be read and sent back to DataTables. Use a space where
     * you want to insert a non-database field (for example a counter or static image)
     */
    $aColumns = array( 'ID', 'TerminalNumber');

    /* Indexed column (used for fast and accurate table cardinality) */
    $sIndexColumn = "ID";

    /* DB table to use */
    $sTable = "ActivityLog";


    /* 
     * Paging
     */
    $sLimit = "";
    if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
    
    $sLimit = "OFFSET  ".$_GET['iDisplayStart']." ROWS 
                                FETCH NEXT ".$_GET['iDisplayLength']." ROWS ONLY "; 
    


    /*
     * Ordering
     */

    $sOrder = ""; 
    if ( isset( $_GET['iSortCol_0'] ) )
    
        $sOrder = "ORDER BY  ";
        for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
        
            if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
            
                $sOrder .= $aColumns[ intval( $_GET['iSortCol_'.$i] ) ]."
                    ".addslashes( $_GET['sSortDir_'.$i] ) .", ";
            
        

        $sOrder = substr_replace( $sOrder, "", -2 );
        if ( $sOrder == "ORDER BY" )
        
            $sOrder = "";
        
    


    /* 
     * Filtering
     * NOTE this does not match the built-in DataTables filtering which does it
     * word by word on any field. It's possible to do here, but concerned about efficiency
     * on very large tables, and MySQL's regex functionality is very limited
     */
    $sWhere = "";
    if ( $_GET['sSearch'] != "" )
    
        $sWhere = "WHERE (";
        for ( $i=0 ; $i<count($aColumns) ; $i++ )
        
            $sWhere .= $aColumns[$i]." LIKE '%".addslashes( $_GET['sSearch'] )."%' OR ";
        
        $sWhere = substr_replace( $sWhere, "", -3 );
        $sWhere .= ')';
    

    /* Individual column filtering */
    for ( $i=0 ; $i<count($aColumns) ; $i++ )
    
        if ( $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
        
            if ( $sWhere == "" )
            
                $sWhere = "WHERE ";
            
            else
            
                $sWhere .= " AND ";
            
            $sWhere .= $aColumns[$i]." LIKE '%".addslashes($_GET['sSearch_'.$i])."%' ";
        
    


    /*
     * SQL queries
     * Get data to display
     */
    $sQuery = "
        SELECT COUNT (*) OVER () AS ROW_COUNT, ".str_replace(" , ", " ", implode(", ", $aColumns))."
        FROM   $sTable
        $sWhere
        $sOrder
        $sLimit
    ";


    $rResult = sqlsrv_query($conn,  $sQuery ) or die(print_r(sqlsrv_errors()));

    /* Data set length after filtering */
    $sQueryRow = "
        SELECT ".str_replace(" , ", " ", implode(", ", $aColumns))."
        FROM   $sTable
        $sWhere
    ";
    $params = array();
    $options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
    $stmt = sqlsrv_query( $conn, $sQueryRow , $params, $options );

    $iFilteredTotal = sqlsrv_num_rows( $stmt );


    //echo "TOTAL " . $iFilteredTotal;
    /* Total data set length */
    $sQuery = "
        SELECT COUNT(".$sIndexColumn.")
        FROM   $sTable
    ";
    $rResultTotal = sqlsrv_query($conn,  $sQuery ) or die(print_r(sqlsrv_errors()));
    $aResultTotal = sqlsrv_fetch_array($rResultTotal);
    $iTotal = $aResultTotal[0];




    /*
     * Output
     */
    $output = array(
        "sEcho" => intval($_GET['sEcho']),
        "iTotalRecords" => $iTotal,
        "iTotalDisplayRecords" => $iFilteredTotal,
        "aaData" => array()
    );

    while ( $aRow = sqlsrv_fetch_array( $rResult ) )
    
        $row = array();
        for ( $i=0 ; $i<count($aColumns) ; $i++ )
        
            if ( $aColumns[$i] == "version" )
            
                /* Special output formatting for 'version' column */
                $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
            
            else if ( $aColumns[$i] != ' ' )
            
                /* General output */
                $row[] = $aRow[ $aColumns[$i] ];
            
        
        $output['aaData'][] = $row;
    

    echo json_encode( $output );
?>