Obfuscate Database Schema
Jun 6, 2007
I can't believe I am asking this but I have been "requested" to.
Scenario:
Database based app installed on client site
Goal:
Protection of database schema.
Solution:
Obfuscate? - Any tools available?
Host db in secure location - Not going to happen!
Any thoughts?
DavidM
Production is just another testing cycle
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Sep 27, 2007
Locally I develop in SQL server 2005 enterprise. Recently I recreated my db on the server of my hosting company (in sql server 2005 express).I basically recreated the tables and copied the data in it.I now receive the following error when I hit the DB:The 'System.Web.Security.SqlMembershipProvider' requires a
database schema compatible with schema version '1'. However, the
current database schema is not compatible with this version. You may
need to either install a compatible schema with aspnet_regsql.exe
(available in the framework installation directory), or upgrade the
provider to a newer version.I heard something about running aspnet_regsql.exe, but I dont have that access to the DB. Also I dont know if this command does anything more than creating the membership tables and filling it with some default data...Any other solutions/thought on what this can be?Thanks!
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Nov 26, 2006
I am developing a small application mainly using User-defined functions and one stored procedure that calls on a few other stored procedures that in turn make use of the UDF.
As for the input of data and editing and deleting records and tables I make use of the Datasets and Object data sources as taught in the data tutorials given by Scott Mitchell.
What worries me is that all these scripts are written in clear texts. Someone mentioned in other discussion that we can use "with encryption� clause when writing the stored procedures. I look through the book online and couldn’t find any such clause for the UDF.
I read through some other discussions in the Google search and see the term obfuscation mentioned. It was even mentioned that such a tool comes with VS 2005.
My question is whether obfuscation tool also comes with VWD or SQL 2005 Express?
Where do I find it and how do I use it to obfuscate the UDF and USP in my SQL 2005 Express scripts?
Your answer and advice would be much appreciated.
Moderator Edit: Please refrain from using excessively large font sizes.
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Sep 24, 2006
Hi there,
we are porting a huge PL/SQL(on Oracle 10g) application to TSQL (SQL2005) right now and we will offer a test drive for download. In Oracle we could "obfuscate" the PL/SQL code with a hash, so nobody can see the PL/SQL statements after the encryption. Is there something like that for SQL Server 2005 as well which can not be overidden by a local admin (like with changing a password for example)? We have spent 5 years in writing SQL code (it is huge) and don't really want to spread the source all over the internet. Any help is appreciated.
Niko
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Apr 12, 2008
Hello everybody!I'm using ASP.NET 3.5, MSSQL 2005I bought virtual web hosting .On new user registrations i have an error =(The 'System.Web.Security.SqlMembershipProvider' requires a database schema compatible with schema version '1'. However, the current database schema is not compatible with this version. You may need to either install a compatible schema with aspnet_regsql.exe (available in the framework installation directory), or upgrade the provider to a newer version. On my virtual machine it work fine but on web hosting i have an error =(What can you propose to me?
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Jan 11, 2006
I recently added a new user to my database. Now I want to delete that user, but I keep getting the error above. What do I need to do to delete my recently added user?
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Mar 21, 2007
The error message:
An error has occurred during report processing. (rsProcessingAborted)
Query execution failed for data set 'TestID'. (rsErrorExecutingCommand)
For more information about this error navigate to the report server on the local server machine, or enable remote errors
The log file reads:
---> Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Query execution failed for data set 'TestID'. ---> System.Data.SqlClient.SqlException: SELECT permission denied on object 'TableID', database 'Database', schema 'dbo'.
***Background***
General Users got an error message when trying to access any reports we have created.
All admin have no problems with the reports. Users (Domain Users) are given rights (Browser) to the reports and the Data Sources (Browser) and yet cannot view the reports.
An error has occurred during report processing. (rsProcessingAborted)
Cannot create a connection to data source 'DS2'. (rsErrorOpeningConnection)
For more information about this error navigate to the report server on the local server machine, or enable remote errors
I'll add this from the report logs...
w3wp!processing!1!3/20/2007-11:43:25:: e ERROR: Data source €˜DS2€™: An error has occurred. Details: Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Cannot create a connection to data source €˜DS2€™. ---> System.Data.SqlClient.SqlException: Cannot open database €œDatabase€? requested by the login. The login failed.
Login failed for user €˜DOMAINUsername€™.
The user has rights via a local group to the report and data source (Browser rights) and the local group has been added as a SQL login.
I gave rights to the databases themselves instead of just to SQL and the error changed (Ah-ha...progress, but why!?!?)
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Sep 21, 2007
I need to export a database, x, of a server, X, to another database, y, of a server, Y and I need export the database schema only, not include the data.
Does anyone know how to do that?
Many thanks for replying.
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Feb 15, 2006
Trying to get my hands around all the new security features of SQL Server 2005. In Management Studio did something I don't know how to undo. I added a database role ReadOnlyRole and clicked the box next to db_datareader in the owned schemas box. Then I tried to remove the ReadOnlyRole and could not. How do I undo what I did? Is it possible?
The below is the TSQL that generates the my issue.
Use [master]
go
create database [test]
go
USE [test]
GO
CREATE ROLE [ReadOnlyRole]
GO
USE [test]
GO
ALTER AUTHORIZATION ON SCHEMA::[db_datareader] TO [ReadOnlyRole]
GO
drop role [ReadOnlyRole]
go
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Apr 28, 2005
What would be the best way to get the Schema from a complete database.
Thanks.
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Sep 9, 2005
hello,
here is my problem.
I have to rebuild database after crash. there is no backup. So
I did a bcp to get data from. But I do not have the original database so my question is how to get the full schema off the data base, tables,colomns,stored procedures etc...
thanks lot for any help.
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Mar 16, 2007
Hello All,
My project uses MS SQL server database and is not too big database (have aound 200 table).
Now I have to create Database schema for my database as my project needs to be integrated with some other product.
I don't know much about database schema and how to start with it.
Can someone please give me some inputs on following:
1) What exactly database schema should include?
2) How should I start creating the schema for my database?
3) Are there any tools for doing this?
Thanks in advance
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Oct 24, 2005
Hi. I would like to retrieve the table names of a database, the column names nad its contraints of each table in a database.. How can this be achieved???
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May 24, 2007
We currently have a product in which each client has their own Database. We adjust the connection when a user for that client logs into the system. This system has continued to grow and a good pace, but we have come to a point where failover is taking too long.
Refactoring the Database to handle multiple sites in a single database is not an option because of the time it would take to make the change. So, we are looking for another way in which this could be handle. One idea is to take multiple clients and place them in a single database using a schema to seperate them. (ex. Client A = server1.db1.schema1, Client B = server1.db1.schema2, etc).
Is there another option that would be better, or what kind of performance can we expect if we follow this path? Or, is there a way to decrease the failover time (it appears the problem is the startup of the database on the failover server)?
Thad
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Oct 26, 2007
We have a RS 2000 server with a over a hundred reports, and about half as many weekly and monthly subscriptions.
In reply to my request to upgrade to RS2005, the boss asked me today for a compete list of the reports, who subscribes to them, and their delivery frequency.
He was not interested in paying for a VB or C# development effort with the SOAP API that it would require to obtain a simple list from a SQL server database, since he already has SQL programmers on staff.
So how can I get this list? Anyone know of any demo code out there?
Forgive my sarcasm and Thanks in advance.
Herb
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Oct 23, 2007
Does anyone know which database table/view one can query to get a list of all objects that have been changed by users accessing a database?
Is there any? or is there some other way of doing this?
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Sep 26, 2006
Is there a way for VS2005 to export the database schema of a .mdf into a .sql file? Preferably from a Web PRoject, not a Database Project, but right now I am anything but picky, so whatever works. Thanks.
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Oct 15, 2007
SQL Database Schema Sync
We have development and production databases, when we change database schema in development database how can I synchronize it to production without creating data problems in production, is this possible in SQL2005? Or any external tool I can use?
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Nov 12, 2007
Hi all,
I am doing a replication of a SQL Server 2005 database from one server to another server, everything worked fine. Now, when I added some fields to this database, the replication stopped. can I do replication of a schema of a SQL database? how? Should the replication work even if I add some fields.
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Feb 4, 2002
Hi,
Can anyone help me to figure out how to generate the SQL Script that can produce the same database schema with the existing database?
I have tried the "Generate SQL Script" tool. However, it only creates the object such as tables, stored procedures, triggers and etc. I still have to create the database first in order to run that script. I have an existing database that has a 2.7 GB size (let's called this ABC Database). In a different server, I would like to create the same database with the ABC DB without having to restore the ABC DB. Bottom line, I would like to see the script creates the database along with all stored procedures, triggers and the size of the database will be 2.7 GB. Is it possible?
Thank you very much!
Jane
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Jul 10, 2002
MS SQL 6.5
NT
I have been asked to export the database schema (containing table names, field names, data types, field lengths, field defaults, nulls, etc) to an MS Excel spread sheet. "sp_help filename" provides some data but the format is difficult to manage.
All help with this matter would be greatly appreciated....
Thanks in advance.
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Feb 26, 2004
Case 1:
A company is involved into e-commerce..hosting multiple websites for different products.
CAse 2:
The above scenario could also be implemented with a single site having multiple products for sale.
For Case 2 one would go for a single database for all the products.
While for CAse 1 ,a separate Database is developed for each Site.
What I fill is CAse2 is a more appropriate choice even if we have multiple sites for different products.
This would help us in rapid development of any ecommerce site...
ANd better ERP management for the Company.
I would appreciate some expert guidelines for the above scenario
Thanx in Advance
Warm Regards
Girija
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Aug 2, 2007
Hi Friends
We have a database that contains tables having 4 million records
Can you tell me a way to copy the schema of the Database to a new database.
Generate SQL Script...Is it the only option or can i use the DTS package
Which is the most reliable one?
Regards
Vivek
Vic
http://vicdba.blogspot.com
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Jul 20, 2005
Hello all,I am doing some research on database conversions. Currently, I aminterested in any information that would help me convert a database fromone schema to another. This could be changes as minimal as adding afield to a table, or as large as deleting tables and changingrelationships. Unfortunately, my experience with SQL Server is minimal.I know how to do a lot, but I do not know a lot of intricacies thatmost experts know. I know how to add tables, delete them, alterrelationships, add fields, work with stored procedures, take care ofsecurity, etc. I also know how to backup, restore, etc.The type of information I am looking for could be:1) Open source software that performs conversions2) Tutorials/books/<any reference> that would assist me in learningwhat I must to complete this task.3) Third party software that could be used on a large scale andwouldn't resort in unnecessary licensing cost if I was to deploy on thislarge scale.I greatly appreciate any information that could be provided me.To give you guys an idea of my experience level:I've been programming C# and .NET for a year now. I've also hadextensive experience in object-oriented design. I've worked with visualbasic, cobol (did I mention this? LOL), asp.net, php, javascript, andseveral other programming languages on an extensive basis. Whileprogramming is my speciality, I've strayed away from database work untilnow. I would greatly appreciate any assistance in researching this matter.Thanks ahead guys,Shock
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Jun 1, 2008
database schema seems just a tag ?
I have found some materials about schema, they said ,schema is seperated from owner.
But , no materials are talking about what things schema can do / how to programming with schema.
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Jul 13, 2007
Hello all. I am using Sql Compact Edition for a small standalone application, I create and build the initial database schema on initial startup. What I am looking for is a way to upgrade the software and on initial startup of the new version, I would like it to compare the existing database with a new schema and then update the database based on the difference. This way I can have a version that will update the database without me having to know what version it is to begin with. Is there a way to do this or am I asking too much?
Thank you,
Jim
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Sep 14, 2007
What are some basic commands to query information about a CE database schema. I'd like to see my foreign keys etc. Where can I find this information in BOL?
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May 27, 2008
I have 35+ tables and 15+ stored procedures with SchemaA, now I want to transfer them to SchemaB.
I know how to do one by one...!
alter schema SchemaB transfer
SchemaA.TableA
but it will take long time...!
Thanks,
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Dec 19, 2006
Hi .Net Guru’s,I have an urgent requirement for my project; the issue is mentioned below;Using .Net(C#/VB.Net) I need to generate/created Database objects from XML schemas.I don't have any sample xml schema file to give you. You just imagine you have a sample .xsd file and this .xsd file will be used to create database tables.Please let me know if you have any queries. Thanks,nick
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Apr 4, 2008
Hi,
I need to extract or get the schema from tables in my databse and what is the best way to do it. Is there any third party tool to do it??
Any idea will be appreciated..
Thanks
Karen
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Nov 5, 2004
Hey,
I was wondering does anyone know a way to get the structure, with relationships, of a Sql Database and generate a XML Schema. I want to use the Schema to build a CrystalReport.
Thanks!
-Kevin
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Nov 15, 2005
helloi have to make helpdesk application for teh IT Department of my company,so if anyone can help by supporting me by database schema for HelpDesk application.thank you for the help
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May 8, 2006
I have written some software using .NET 2.0, a WinForms app, which uses SQL Server Express as a database. Although I've done my best to set up the database to take into account all of the features, etc., after releasing the first version, I need to make some changes to the database schema, but want to do so without wiping out the entire database for existing users. How do I go about upgrading the database schema for users who are already using the software? I'm thinking I should start by writing a helper app to do so whose sole purpose is to upgrade the schema. The app would be run at install-time, but I don't have any idea how to actually upgrade the schema. I am using C++/CLR .NET, but examples in other .NET languages are more than welcome. Any help is greatly appreciated. Thanks!
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