Cannot create an instance of OLE DB provider "OraOL

2019-10-11 21:23栏目:计算机论坛

在SQL SERVER 2008 R2下用Windows 身份认证的登录名创建了一个访问ORACLE数据库的链接服务器xxxxx,测试成功,木有问题,但是其它登录名使用该链接服务器时,报如下错误:

消息 7302,级别 16,状态 1,第 1 行

Cannot create an instance of OLE DB provider "OraOLEDB.Oracle" for linked server "xxxxxx".


此时需要在“服务器对象”——>“链接服务器”——>“访问接口”下,找到OraOLEDB.Oracle选项,单击右键选择属性,然后在访问接口选项下勾选“允许进程内”(Allow inprocess)。即可解决上面问题,有时候,可能需要重新新建此链接服务器。

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Ran into this issue where the linked server would work for users who were local admins on the server, but not for anyone else. After many hours of messing around, I managed to fix the problem using the following steps:

  1:Run “dcomcnfg.exe”. Navigate to “Component Services -> Computers -> My Computer -> DCOM Config”.

  2:Open the properties page of “MSDAINITIALIZE”.

  3:Copy the “Application ID” on the properties page.

  4:Close out of “dcomcnfg”.

  5:Run “regedit”. Navigate to “HKEY_CLASSES_ROOTAppID{???}” with the ??? representing the application ID you copied in step #3.

  6:Right click the “{???}” folder and select “Permissions”

  7:Add the local administrators group to the permissions, grant them full control.

  8:Close out of “regedit”.

  9:Reboot the server.

  10:Run “dcomconfig”. Navigate to “Component Services -> Computers -> My Computer -> DCOM Config”.

  11:Open the properties page of “MSDAINITIALIZE”.

  12:On the “Security” tab, select “Customize” under “Launch and Activation Permissions”, then click the “Edit” button.

  13:Add “Authenticated Users” and grant them all 4 launch and activation permissions.

  14:Close out of “dcomcnfg”.

  15:Find the Oracle install root directory. “E:Oracle” in my case.

  16:Edit the security properties of the Oracle root directory. Add “Authenticated Users” and grant them “Read & Execute”, “List folder contents” and “Read” permissions. Apply the new permissions.

  17:Click the “Advanced Permissions” button, then click “Change Permissions”. Select “Replace all child object permissions with inheritable permissions from this object”. Apply the new permissions.

  18:Find the “OraOLEDB.Oracle” provider in SQL Server. Make sure the “Allow Inprocess” parameter is checked.

  19:Reboot the server.



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