Image 如何从SQL Server获取映像

我有一个名为

IMG

的表，其中有

ID

和

Content

列保存图片

从那里怎么可能拍到照片

我在谷歌上搜索这个问题，得到的只是vb.net、c#和php-mysql

也许有人会说，获取图片（示例、复制/粘贴代码、程序）的最佳和最简单的方法是什么

谢谢大家!

试试这样（从d_r_w的答案）：

请看电视

执行此操作的更多选项：

我找到了PHP，但使用了MySQL（您需要更改与服务器的连接）：

---

经过大量阅读和工作，找到了解决方案

给你！工作100%

      Dim conn, sql, a, filename
      Dim dir 
      dir = "c:\images\" //saves files into this directory
      Dim fileObj
      Set fileObj = CreateObject("Scripting.FileSystemObject")
      Set conn = CreateObject("ADODB.Connection")
      Dim strStream
      Set strStream = CreateObject("ADODB.Stream")
      Dim rstRecordset
      Set rstRecordset = CreateObject("ADODB.Recordset")
      conn.Open "Provider=SQLOLEDB;Data Source=yourserver;Integrated Security = SSPI","username","password"
      rstRecordset.Open "Select xxx, yyy, zzz from table (nolock) where xxx = '' order by xxx desc", conn    ', adOpenKeyset, adLockOptimistic
      Set fso = CreateObject("Scripting.FileSystemObject")

      While Not rstRecordset.EOF  
     filename = rstRecordset.Fields(0) 
     er = 0

Do
    er = er+1
Loop While (fso.FileExists(dir & filename & "_" & er  & ".JPG"))  

    filename = dir & filename & "_" & er  & ".JPG"
    strStream.Type = 1
    strStream.Open
    strStream.Write rstRecordset.Fields(2).Value
    strStream.SaveToFile filename
    strStream.Close
        rstRecordset.MoveNext
    Wend

---

给你

您使用的是

linq

、

dataset

、

entityFramework

，还是纯查询语句？也许有一些解释？这是什么语言？我应该用我的服务器IP、用户名、密码替换

yourConnectionReference

吗？很抱歉，我没有注意到上面提到的任何编程语言，这个例子是C#，您实际使用的是哪种语言？我将首先尝试使用cursor，如果它不起作用，我将尝试使用PHP one:）谢谢！不起作用。有必要下载mssql连接的驱动程序，我已经阅读了这篇文章。一定有更简单的方法来获取图片：）这太复杂了。你做得很辛苦，伙计，用C#，+1可以更容易地完成。谢谢：）我对C不熟悉。在VB上找到了一个非常酷的脚本。只是做了一些更正，它成功了：）

<?php 
// image.php - by Hermawan Haryanto &lt;hermawan@dmonster.com&gt; 
// Example PHP Script, demonstrating Storing Image in Database 
// Detailed Information can be found at http://www.codewalkers.com 

// database connection 
$conn = mysql_connect("localhost", "user", "password") 
  OR DIE (mysql_error()); 
@mysql_select_db ("hermawan", $conn) OR DIE (mysql_error()); 
$sql    = "SELECT * FROM image WHERE image_id=".$_GET["iid"]; 
$result = mysql_query ($sql, $conn); 
if (mysql_num_rows ($result)&gt;0) { 
  $row = @mysql_fetch_array ($result); 
  $image_type = $row["image_type"]; 
  $image = $row["image"]; 
  Header ("Content-type: $image_type"); 
  print $image; 
} 
?>

      Dim conn, sql, a, filename
      Dim dir 
      dir = "c:\images\" //saves files into this directory
      Dim fileObj
      Set fileObj = CreateObject("Scripting.FileSystemObject")
      Set conn = CreateObject("ADODB.Connection")
      Dim strStream
      Set strStream = CreateObject("ADODB.Stream")
      Dim rstRecordset
      Set rstRecordset = CreateObject("ADODB.Recordset")
      conn.Open "Provider=SQLOLEDB;Data Source=yourserver;Integrated Security = SSPI","username","password"
      rstRecordset.Open "Select xxx, yyy, zzz from table (nolock) where xxx = '' order by xxx desc", conn    ', adOpenKeyset, adLockOptimistic
      Set fso = CreateObject("Scripting.FileSystemObject")

      While Not rstRecordset.EOF  
     filename = rstRecordset.Fields(0) 
     er = 0

Do
    er = er+1
Loop While (fso.FileExists(dir & filename & "_" & er  & ".JPG"))  

    filename = dir & filename & "_" & er  & ".JPG"
    strStream.Type = 1
    strStream.Open
    strStream.Write rstRecordset.Fields(2).Value
    strStream.SaveToFile filename
    strStream.Close
        rstRecordset.MoveNext
    Wend