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sql server readonly permission


sql server readonly permission

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Which permission under sql server database properties->permission in SSMS should i select to make the database readonly for a user?
chvenkataraman
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Assign role 'read_only' to the user on that databse
GilaMonster
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Add the user to the roles db_datareader and db_denydatawriter. Bear in mind that you cannot deny permissions to a sysadmin though.


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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GilaMonster
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chvenkataraman (4/1/2013)
Assign role 'read_only' to the user on that databse


Except there is no such role...


Gail Shaw
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SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
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Lowell
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an example of what Gail was referring to:

USE [SandBox] --my db for users to do stuff.
CREATE ROLE [ReallyReadOnly]
--give my new role READ permission to ALL tables
EXEC sp_addrolemember N'db_datareader', N'ReallyReadOnly'
--explicitly DENY access to writing
EXEC sp_addrolemember N'DB_DenyDataWriter', N'ReallyReadOnly'
--give my new role permission to run the procedures you've created? uncomment if true
--GRANT EXECUTE TO [ReallyReadOnly]

--finally, add our already exisiting user "bob" to the role we created

EXEC sp_addrolemember N'ReallyReadOnly', N'bob'




Lowell

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GilaMonster
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Though, do note that even with those permissions such a user could, if they had the appropriate execute permissions, execute a stored procedure that deletes data. Ownership chaining (feature, not bug)


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


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