Oracle системная ошибка 5 отказано в доступе

I am starting to learn SQL and I have a book that provides a database to work on. These files below are in the directory but the problem is that when I run the query, it gives me this error:

Msg 5120, Level 16, State 101, Line 1 Unable to open the physical file
«C:MurachSQL Server 2008DatabasesAP.mdf». Operating system error
5: «5(Access is denied.)».

   CREATE DATABASE AP
      ON PRIMARY (FILENAME = 'C:MurachSQL Server 2008DatabasesAP.mdf')
      LOG ON (FILENAME =     'C:MurachSQL Server 2008DatabasesAP_log.ldf')
      FOR ATTACH
    GO

In the book the author says it should work, but it is not working in my case. I searched but I do not know exactly what the problem is, so I posted this question.

To get around the access denied issue, I started SSMS as administrator and that allowed me to attach a database from my local drive. The database was created in another SQL and windows instance.

I had this problem. Just run SQL Server as administrator

Yes,It’s right.The first you should find out your service account of sqlserver,you can see it in Task Manager when you press ctrl+alt+delete at the same time;Then,you must give the read/write privilege of «C:MurachSQL Server 2008Databases» to the service account.

I solve this problem by adding Full control permission for both .mdf and .ldf files for Users group.

The problem is due to lack of permissions for SQL Server to access the mdf & ldf files. All these procedures will work :

1. you can directly change the MSSQLSERVER service startup user account, with the user account who have better privileges on the files. Then try to attach the database.
2. Or you can assign the user to the file in security tab of the mdf & ldf files properties with read and and write privileges checked.
3. Startup with windows administrator account, and open SQL Server with run as administrator option and try to login with windows authentication and now try to attach the database.

For me it was solved in the following way with SQL Server Management studio
-Log in as admin (I logged in as windows authentication)
-Attach the mdf file (right click Database | attach | Add )
-Log out as admin
-Log in as normal user

answered Sep 11, 2014 at 19:27

Even if you do the following steps you COULD get the same error message.

1. login as SA user (SSMS)
2. Edit the file permissions to say "everyone" full access (windows folder)
3. Delete the Log file (Windows Exploring  (this was what I had done per advise from some msdn forum) 

I still GOT the permission error, but then I noticed that in the Attach screen, the bottom section STILL showed the LOG file, and the error message remained the same.

Hope this helps someone who did the same thing.

answered May 21, 2014 at 0:18

It means the SSMS login user does not have permission on the .mdf file. This is how it has worked for me:

I had opened the SSMS (Run as administrator) and login as an administrator user, database right-click attach, click add, select the .mdf file, click Ok. Done.

answered Jul 15, 2020 at 22:44

answered Jul 17, 2017 at 7:45

If you get this error on an .MDF file in the APP_DATA folder (or where ever you put it) for a Visual Studio project, the way I did it was to simply copy permissions from the existing DATA folder here (I’m using SQL Express 2014 to support an older app):

C:Program FilesMicrosoft SQL ServerMSSQL12.SQLEXPRESS2014MSSQLDATA

(note: your actual install path my vary — especially if your instance name is different)

Double click on theDATA folder first as administrator to make sure you have access, then open the properties on the folder and mimic the same for the APP_DATA folder. In my case the missing user was MSSQL$SQLEXPRESS2014 (because I named the instance SQLEXPRESS2014 — yours may be different). That also happens to be the SQL Server service username.

answered Jan 24, 2019 at 1:37

For some reason, setting all the correct permissions did not help in my case. I had a file db.bak that I was not able to restore due to the 5(Access is denied.) error. The file was placed in the same folder as several other backup files and all the permissions were identical to other files. I was able to restore all the other files except this db.bak file. I even tried to change the SQL Server service log on user — still the same result. I’ve tried copying the file with no effect.

Then I attempted to just create an identical file by executing

type db.bak > db2.bak

instead of copying the file. And voila it worked! db2.bak restored successfully.

I suspect that some other problems with reading the backup file may be erroniously reported as 5(Access is denied.) by MS SQL.

answered Nov 27, 2019 at 8:49

In linux, I went to /var/opt/mssql/data/ folder and opened a terminal with sudo then, changed my *.mdf and *.ldf file permissions as below in which you replace yourDB with your Database file name and myUser to currently logged username:

chmod 755 yourDB.mdf
chown myUser yourDB.mdf

chmod 755 yourDB.ldf
chown myUser yourDB.ldf

After that, it was reconnected without any issue.

answered Jan 8, 2020 at 8:07

1. Run SQL Server management studio as Administrator
2. Log in as Windows user
3. Remove log file if you have only MDF file (haven’t log file)

With 3 items in the above checklist, you will remove almost problems related with attach database task.

answered May 22, 2021 at 5:17

If you’re using Storage Gateway — SMB (S3)
Do this from the management studio

1. EXEC xp_cmdshell ‘net use X: 100.155.16.6mystoragegatewayfolder xxmysuperpassxx /user:sgw-445577smbguest /persistent:yes /y’

2. EXEC XP_CMDSHELL ‘Dir X:’ (this should show you the Directory info, serial no etc)

3. Mount the drive (This PC — > Mount network drive, using the same info above)
   Test run a backup job using scheduled backup, this will force to use the sql server agent and you can see where it’s writing and whats the issue if any.

answered Aug 9, 2022 at 4:51