Questions On Users/Schemas
Oct 24, 2007
Hi,
I am looking for some advice on securing a sql 2005 database.
I have a database to which I want to grant 3 different users access.
The first users, who we will call 'public' should have access to a set of stored procedures, and no access to tables without using the stored procedures they have access to.
The second users have again got access to a certain set of stored procedures, along with the stored procedures for 'public'. These should be called 'moderator'.
Finally the third set of users 'admin' should have access to all stored procedures, but again no access to the database unless its through a stored procedure.
Questions :
Using SQL 2005, how do I assign access to particular stored procedures to a user?
How do I ensure that a 'user' cannot access stored procedures I don't want them to access?
Some of the stored procedure use dynamic sql within them, will this affect my setup. If I deny direct access to the tables to all three users, but allow them access the stored procedures, can the stored procedures access the tables?
If schemas are the answer, how on earth do I set them up, Ive never seen something so badly documented online in my experience! In my development environment im using sql express, so will probably working through the query analyzer.
Thanks in advance.
Conor
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Apr 5, 2008
Sql 2005
I want to grate execute permissions on my stored procedures to a role. While creating the role, it asks for "schemas owned by this role".
To me, the schema is merely a namespace that allows you to group objects, but arent schemas such as db_datawriter roles that are central to the db and only admin type users should have ownership of these, correct ?
In a nutshell, I want to:
create a new role and assign a user to that role
with a stored procedure, grant execute permissions to this role
I was confused by the sql 2005 dialog that asks me to take ownership of roles such as db_datawriter, db_datareader etc, wouldnt that mess up other things with the database ?
help ...
I think its time I review all of the above items
role
user
login
schema
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Jun 20, 2007
Hi eveyone, I'm reading about namespaces and schemas in MS SQL 2005, and that's exactly what I was looking for for the structure of my database.
I've a database and 4 different applications that will use it, and every application will create a new database every year, for example, i'd like to use the following schema:
MainDatabase.MyApplication.MyYear.MyTable
In MS SQL i've created my main schema using:
USE Mydatabase;
CREATE SCHEMA MyApplication
GO
Now I want to add sub-groups (in this example, I need to create Year2006, Year2007, and so on).
Even If i create those schemas, how can I "add" them inside the Salary main schema?
I've tryed with
ALTER SCHEMA MyApplication TRANSFER Year2006
but it doesn't work since Year2006 is not an object.
Thank you!
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Nov 27, 2006
I'm trying to find some documentation or procedures that will allow me to xfer existing users' roles, etc from sql2000 to sql2005.
When our sql 2005 database was restored on a new server (from sql2000), all of the database users were orphaned. I need to create identical server logins and then make the logins database users. It is also important to understand the significance of the new schema concept. The Microsoft SQL2005UpgradeTechRef.doc white paper does not explain any of this.
Ultimately, I would like to create a script for the above scenario once a sql2005 db is restored from a sql2000 db.
Could someone please help me out on this?
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Nov 27, 2006
I'm trying to find some documentation or procedures that will allow me to xfer existing users' roles, etc from sql2000 to sql2005.
When our sql 2005 database was restored on a new server (from sql2000), all of the database users were orphaned. I need to create identical server logins and then make the logins database users. It is also important to understand the significance of the new schema concept. The Microsoft SQL2005UpgradeTechRef.doc white paper does not explain any of this.
Ultimately, I would like to create a script for the above scenario once a sql2005 db is restored from a sql2000 db.
Could someone please help me out on this?
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Aug 2, 2007
Hi,
I've a Problem with a Function called by different users.
I want the different callers to query a table in their own default Schema.
So if i refence the full Path [Schema].[Tablename] it works Properly.
If i just Use the [Tablename] for reference it fails.
The function was created with EXECUTE AS CALLER option ;
if I call it with dynamic SQL i retreive the error-message
"Only functions and extended stored procedures can be executed from within a function."
does anybody know a solution for this problem?
thanks in advance
Raimund
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Aug 20, 2007
Hello,
I think now MS SQL 2005 support packaging database object into schemas which may be granted access by any of the db users, while SQL 2000 only we could use the database creator user instead of schema. my case is i am working in a system with more than one module, e.g. HR + TaskManagemt.
Both HR and TaskManagement objects are in the same database, and there are some common objects.
I want to isolate the HR objects from the TaskManagemt objects, so i can package any module separated from the other, suppose i want to buy only the HR module, so that i want only to exctract the HR Object + the common objects but not the TaskManagement objects.
So how can i accomplish such operations using SQL 2005 schemas AND using SQL 2000 users.
P.S. i have two servers one with 2000 and the other with 2005, so i want to find solutions for both 2000 and 2005
Thanks in advance
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May 16, 2008
I have been struggling with this for a while and cannot get it right. I have read countless articles on the internet as well as MSDN documentation about SQL Server 2005 and no success so far.
What I want is a database with multiple SCHEMAS, DATABASE ROLES and USERS in order to have a finer grade of security to access the various objects.
My schemas are (in order to simplify the situation and provide an example of the setup):
- [dbo] the standard DBO schema which is always default. Contains public objects.
- [com] a special module integrated into the system
- [ofc] contains objects used by back-office only
- [aud] contains objects used for auditing, etc.
Each of these schemas has their fair share of tables, views, functions and stored procedures which have been created appropriately (i.e. CREATE TABLE [ofc].[Addresses]), in other words prefixed by the name of the schema to which they belong.
Then I have created various database roles (don't confuse them with SQL2005 application roles) as follows:
- PublicRole mostly used for viewing, no data alterations
- WorkerRole used by front end processes that need write access to data in [dbo] and [aud]
- OfficeRole used by back-office for dealing with backoffice data (basically [ofc], [aud] stuff)
- AdminRole used by application administrator
Each of these database roles has been defined with owner 'dbo', none of them own any schemas. And last but not least to each of these roles I have selected the above named schemas (dbo, ofc, aud) as securables and for each of those securables schemas I have then given the correct set of GRANT/DENY on the Alter, Control, Delete, Execute, Insert, References, Select, Update, Take ownership and View definition.
As an example, the PublicRole role has been given the following permissions (Y=GRANT, N=DENY):
Table #1 of Application Permissions [dbo] [com] [ofc] [aud]Alter N N N N
Control N N N N Delete N N N N Execute Y Y N Y Insert N N N Y References Y Y N Y Select Y Y N Y Update N N N Y Take ownership N N N N View definition N N N N
And I have the following minimum set of database users defined (the server login has the same name):
- upublic, assigned to PublicRole
- uworker, assigned to WorkerRole
- uoffice, assigned to OfficeRole
- uadmin, assigned to AdminRole
As I understand when I assign these users to a particular custom Database Role, the users inherit the permissions granted to THAT role thus liberating me from having to assign the permissions to each and every user account on the same role.
What I expected was that when I logged in to the database with the upublic user account I would at least be able to view (SELECT at least) ALL the objects with the exception of those in th e[ofc] schema. Unfortunately the account is not able to access ANYTHING at all, I get an error like
"The SELECT permission has been denied on object XYZ, database DB, schema 'dbo'"
So, when I use Management Studio to look at the properties I selected the PublicRole and it showed the upublic user as a member of the role (Members of this role). So far so good.
Then when I switch to the Securables page for this role it shows all the schemas I defined and for each of them the same list shown in Table #1 except it has two lines for each permission, the first for Grantor dbo and the second for Grantor upublic. The first has the same permissions I assigned to the role (as shown on Table #1) but the 2nd does not show a checkmark on either GRANT or DENY!!! For example ([x] = checked, [ ] unchecked):
Table #2 Explicit permissions for Securable
Permission Grantor Grant Grant-with Deny
Select dbo [x] [ ] [ ] Select upublic [ ] [ ] [ ]
What am I doing wrong here? Apparently I then have to repeat the whole grant/deny for EACH and EVERY USER I define when the idea was that I would grant/deny on the database role and every member of that role would inherit those permissions automatically.
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Mar 5, 2006
Hello,
I am new user of SQL Server. I have some problems with these words. I want to make my database works in my specified permissions. I will specify permissions with schemas and these schema wants an owner. I want this owner should be my user. When creating a user it needs a valid login. I am selecting my login and it occurs and error says this login has an different user. I am specifying permissions with roles. But i can't make association all of them. I hope i told my problem to you as well. If you explain these words to me and tell me how can i do my database's works with my own schemas, users and roles i'll be grateful. Thanks for advices.
Happy coding...
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Jul 28, 2015
We have an existing SSRS server, and have just created a new child domain. We'll be migrating users from the parent to the child, and want to add the users of that new domain with access to SSRS. In the parent domain they are able to access, but after migration with the child domain account, they cannot.
I have added the group CHILDDomain Users with a system user role on SSRS, and PARENTDomain Users was already there.
Is there any additional step I should/could take to get this active?
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Mar 6, 2008
I have had this issue just pop up. I have local users who can connect fine, but my users that require connection by VPN cannot connect. I get the server not available or access denied error. I did confirm that the VPN'ers are connected to the network correctly and can see that their shares and mappings are correct. Any ideas? Thanking you all in advance!!
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Sep 28, 2015
I am trying to revert back to Windows 7 after upgrading to Windows 10, however it will not let me and the following message occurs: "Remove new accounts.Before you can go back to a previous version of Windows, you'll need to remove any user accounts you added after the most recent upgrade. The accounts need to be completely removed, including their profiles.You created one account (NT SERVICEMSSQLSERVER) Go to Settings> Accounts> Other users to remove these accounts and then try again".However I did not create any new users and there are no other users listed in the Accounts section.
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Apr 30, 2008
hi alli've got two tables called "webusers" (id, name, fk_country) and "countries" (id, name)
at the meantime, i've a search-page where i can fill a form to search users. in the dropdown to select the country i included an option which is called "all countries".
now the problem is: how can i make a stored procedure that makes a restriction to the fk_country depending on the submitted fk_country parameter?it should be something like
SELECT * FROM webusers(if @fk_country > 0, which is the value for "all countries"){ WHERE fk_country = @fk_country}
who has an idea how to solve this problem?
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Jan 28, 2008
I'm trying to understand the schemas in SQL Server 2005. I have a script which was given to me by someone as follow and I'm trying to run the script but it gave me an error at the create view section:
Assume an empty database has been created.
CREATE SCHEMA [mySchema] AUTHORIZATION [dbo]
GO
CREATE TABLE [tblABC] ( ... ) /*note: it didn't bind the table to the above schema*/
create view mySchema.vwMyView as
SELECT * FROM mySchema.tblABC
GO
However I'm confused because the above CREATE VIEW made a reference to the table with the schema. Can someone help clarify. When i tried to create the view, it gives me an error that it is unable to find the mySchema.tblABC table. To me, the error is correct as per my understanding of binding a table to a schema ---> If you do not create a table and bind it to a schema, you are not able to call it together with the schema.
What I'm trying to understand is, without explicitly stating [mySchema] during the table creation, is there a way where it is mysteriously binded thus the CREATE VIEW somehow understood that tblABC has been binded therefore it called the table in the view? or is this just a script error.
Btw, this script was generated from a working database.
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Mar 1, 2001
Hi Guys,
I'm afraid the schemas of the Development and Production versions of a database are in fact diferent.
How may I compare two database schemas?
Thanks in advance !-)
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Dec 12, 2011
Is there anyway to differentiate between two schemas between two SQL server instances?
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Aug 15, 2007
Hi,Anyone know an online source for database schemas, or schemas for singletables i.e. where can I download a schema for an addresses table?--Richhttp://www.badangling.com -= Sea fishing badly explained =-
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Mar 25, 2008
Is there any way to create a local database cache from an SQL 2005 database that uses non standard schemas (like AdventureWorks). I have tried in Visual Studio 2008 but any database that does not use .dbo will not allow any tables to be copied locally. Even setting the default schema for my login does not enable adding any tables in the Configure Data Synchronization dialog box.
If it is not possible via Visual Studio is there any other way? I notice all examples with Sql Compact conveniently use Northwind. Seemingly Compact edition does not support non .dbo schemas.
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Dec 27, 2007
Hi,
I wanted to find out what the statement is for finding out the number of schemas in all your databases.
I know in 2005 the you can do a select * from sys.schemas
but how do you achieve the same thing in sql server 2000 ?
Please let me know..
Thanks,
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Dec 26, 2007
Hi,
How do I find out the number of schemas in sql server 2000 and 2005 for each database?
Also, how can i find the number of tables in each database?
I'm trying to figure this out but can't find anything on google.
Please help.
Thanks,
Kapinak
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Apr 25, 2007
I have schema called [sitex] for some tables .
I have to perform insert or update operations in to these tables through views only and these views were created with [site] schema
All stored procedures are written in the point of view only ( all DML operations into the tables are through views).and these stored procedures has schema same as views.
Now come to the permissions and authorization.
We have some users like sa,112,janu
These users must have permissions only on site schema not on [sitex].
I have a role called €œtestrole€? with 112,janu users and I gave authorization on site schema on for testrole
ALTER AUTHORIZATION ON SCHEMA::[site] TO [testRole]
Now I€™m getting error select permessions are denied on [sitex] schema.
But our requirement is 112 must don€™t have any type of permissions on tables
And also is there schema to schema permissions. (that mean [site] schema has permissions on [sitex] schema .
PLZ help me
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Jan 7, 2006
Hello
Can anyone give an introduction to the use of schemas i SQL Server 2005. If have noticed the feature, but i would like to know why and how the use of schemas is a good thing.
If anyobe has a link to a whitepaper or practical insight that would be nice.
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Nov 28, 2006
Hi Team,
In SQL Enterprise Manager, when we expand "Database -->Users", we see the
users there. When we expand "Security --> logins" we see the same users there.
Can you differentiate these two.
Thanks
Santhosh
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Nov 17, 2006
We're using Sql Server 2000. The one database contained tables and stored procedures which were possibly updated with some script information. Is there an application(commercial or free) or script I can use to compare the base database against this updated database to confirm there schema information is the same.
Thanks
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Dec 10, 2007
Is there a way to create a table in SQL Server Management Studio under a different schema? I've tried setting my default schema and adding a table, but that didn't work. I know I could do it with a SQL statement, but wanted to know if I could do it with the designer.
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Mar 27, 2008
Is there an easy way to move a view from one schema to another?
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Mar 28, 2008
I have some tables sitting in schema "A", then I created a view in schema "B" based on the tables in schema "A". Then I gave the user just access to schema "B" to only run the view but not see the tables in schema "A".
Could it be that if the user tried to ODBC to that db, they would only see the view in schema "B" and not the tables in schema "A"?
Thanks!
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Apr 28, 2008
Hey folks,
I'm looking to gather ideas on this before I start the project; so what better way to start than to ask here? ;)
The situation is this: we are in the process of replacing a large data driven application with a new one. Before turning the old'un off (that's not for a minimum of 6 months), we need to migrate data between the two entirely different schemas, and I've been tasked with writing the interfaces.
Now, here comes the kicker; they don't just want a "straight-forward data conversion", they want to run a period where they can still update both databases and any changes in the old one are to be pushed into the new db.
Because the schemas are not the same, I believe replication is out of the question so I was looking for advice as to what possibilies I have ahead of me to achieve this.
I fear I may not have expained this well enough; so as always if there are holes in the detail let me know and I'll do my best to fill them in :)
Old db = SQL Server 2000
New db = 2005
Thanks,
George
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Jul 24, 2007
We have a system with multiple modules, for each module we have a separate database. Is it better to have multiple databases or have multiple schemas. Performance, advantages, disadvantages...
When is too much too much, 10-25-50-100 Schemas???
Course.dbo.table1
Program.dbo.table1
vs.
NEWDB.Course.table1
NEWDB.Program.table1
Thanks
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Jul 20, 2005
Hi, I am storing information being sent to me weekly into a ms sqldatabase. The one twist I am running into is that later down the linethe information I recieve may require more columns, or columns mightbe renamed so having a static database call is out of the question. Iwas using mysql but for certain reasons switched to ms sql 2000.Currently before ms sql, I query the database for show fields whichreturns all the database data such as type, column name, etc... then Iuse a giant if statement structure to deal with matching andconverting data from my users display to the information into thedatabase.So my first question is how do I either query or using datatypes builtinto C# return information about a tables setup. I was hoping therewas some sort of table array object which could be returned with namesand types, if not then just an sql statement return.My second question is I have user data which needs to be displayeddifferently then the database raw data, how do I use a C# dataset, andconvert it's column data into my raw database data without having tocreate raw insert and update sql strings myself? I would really liketo use the sort of automatic update features of the dataset.Lastly am I going about this the wrong way? Are there other ways tomap & convert datatypes between a dataset column and a table column.
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Jan 25, 2007
My problem is very simple and that is that I'm trying to copy some tables between databases, but these tables are in different schemas.
let's say I have
dbo.tableA
sch1.tableA
sch2.tableA
sch3.tableA
And I just want to copy let's say sch1.tableA to a Different DB.
If I use Transfer SQL Server Object task and select the table and save the package and try to open the task again, all the tables with name TableA will be selected!! it seems like although it does show the schema ( when I am selecting the table manually ) but it doe snot store the schema detail in the tablelist collection property of the task.
Would please recommend any other way to achieve this.
Many Thanks in advance
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Feb 22, 2007
Hi SQL guys,
I have 2 different databases and an import tool that reads from one and fills the other one and then whenever we run it, it should synch the two databases and its kind of a heavy task. I was wondering if i can replace it with replication between these databases. I defined publisher and subscriber, but i cannot find anywhere that i can say which field in source maps to which field in destination.
Is it possible at all to have a replication between 2 databases with totally different schemas? If so, please let me know how.
Thanks,
Sina
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Apr 16, 2007
I have noticed that some folks create a user to own a schema, with both having the same name (ex: userowner = pfm schema = pfm) and others make dbo the owner for all their schemas. From what I can tell, it doesn't really matter; what does matter is if your database users are granted access to the schema. Since most users only have public rights and dbo has database owner rights, is there any particular reasoning to use one scenario over the other?
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