MDS Business rule regular expression to validate code to be combination of two attributes

Hi
I need to have a business rule as below:
entity1 have code, Attr1 and Attr2
I have to ensure code is always combination of Attr1 and Attr2. If either of the Attr1 or Attr2 is blank, validation should fail.
I tried below possibilities:
1. Set Code to Auto generate
2. Change tracking enabled for Attr1 and Attr2
and below BRs:
1. Attr1 has changed in group 1 AND (Attr2 has changed in group 1) then action:     Code equals a concatenated value Attr1 + Attr2
2. Attr1 is equal to Blank OR Attr2 is equal to Blank then action:     Attr1 is required
    Attr2 is required
3. Code must be unique Attr1 ,Attr2
I see BRs 1 and 2 working. I have BR 3 to fail validation in case BR1 fails resulting code to remain auto generated value.
but i dont see BR-3 working. At the end teh result is code with auto generated value validation is success.
Is there a way i can overcome this issue?
Any idea of referring attrbitues in Regular expression of this sort... to set Code equals to [Attr1] + [Attr2]?

OK I bit the bullet and contacted support on this one.
There is a known issue with MDS 2012 and business rules with a combination of "must be unique" attributes. If you do not list the attributes in the same order that they were created you will get the generic error I cited. At first they told me it must be
in the same order the attributes are in and that worked on one entity but not the other. The difference was that in the second entity I previously rearranged the attributes in question. Once I changed the order in the business rule to reflect the *original*
order it worked like a champ.
Hopefully this helps save someone some time and money.

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Hi,
I would write it that way :SQL> with t as (
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Business rule in MDS 2012 error: A database error has occurred. Contact your system administrator.

I get the following information in my MDS log as well as the above error message when I execute a business rule that has a condition of AND and an Action of Attribute must be unique in combination with 2 other attributes.
I'm running SQL Server 2012 11.0.3000
MDS database version 11.1.0.0
Any ideas?
MDS Error: 0 : SqlException message: A database error has occurred. Contact your system administrator.
at Microsoft.MasterDataServices.Core.DataAccess.DbHelper.HandleExceptions(Exception ex)
at Microsoft.MasterDataServices.Core.DataAccess.DbHelper.ExecuteDataSet(String spName, CloseConnectionBehavior closeBehavior, Object[] parameterValues)
at Microsoft.MasterDataServices.Core.DataAccess.MasterDataAccess.<>c__DisplayClass5.<ValidateEntityMembers>b__4()
at Microsoft.MasterDataServices.Core.DataAccess.DbHelper.ExecuteMethodWithDeadlockProtection(MethodDelegate method)
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at Microsoft.MasterDataServices.Core.BusinessLogic.Validations.Process(ValidationProcessCriteria criteria, Boolean commitVersion, Boolean validateEntityAsync, Boolean returnValidationResults, RequestContext context, OperationResult results)
SQL Error Debug Info: Number: 208, Message: Invalid object name 'cteDuplicates0a070e37b106b9e3efe35a455076efa7'., Server: SQLRS-01, Proc: udp_SYSTEM_3_38_CHILDATTRIBUTES_ProcessRules, Line: 230
SQL Error Debug Info: Number: 266, Message: Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1., Server: SQLRS-01, Proc: udp_SYSTEM_3_38_CHILDATTRIBUTES_ProcessRules, Line: 230
SQL Error Debug Info: Number: 266, Message: Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1., Server: SQLRS-01, Proc: , Line: 0
SQL Error Debug Info: Number: 266, Message: Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1., Server: SQLRS-01, Proc: udpBusinessRule_AttributeMemberController, Line: 0
SQL Error Debug Info: Number: 266, Message: Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1., Server: SQLRS-01, Proc: udpValidateMembers, Line: 0
DateTime=2013-08-15T13:25:15.6684023Z
MDS Error: 0 : <ArrayOfError xmlns="http://schemas.microsoft.com/sqlserver/masterdataservices/2009/09" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Error>
<Code>208</Code>
<Context i:nil="true" />
<Description>A database error has occurred. Contact your system administrator.</Description>
</Error>
</ArrayOfError>
DateTime=2013-08-15T13:25:15.7152026Z

OK I bit the bullet and contacted support on this one.
There is a known issue with MDS 2012 and business rules with a combination of "must be unique" attributes. If you do not list the attributes in the same order that they were created you will get the generic error I cited. At first they told me it must be
in the same order the attributes are in and that worked on one entity but not the other. The difference was that in the second entity I previously rearranged the attributes in question. Once I changed the order in the business rule to reflect the *original*
order it worked like a champ.
Hopefully this helps save someone some time and money.

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This works fine in a regular expression test tool http://regexpal.com/ , but when I use in Oracle, it does not.
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select '[email protected]'       as val from dual union all
select 'ad{[email protected]' as val from dual union ALL
select '[email protected]' as val from dual union all
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select '[email protected]'      as val from dual union all
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[email protected], N
[email protected], N
[email protected], N
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I am not sure why it is not working in Oracle.
Can any body please help me to find the mistake and to have it correctly?
Advance Thanks,
Natarajan
Edited by: Nattu on Dec 4, 2012 1:31 AM

Try this regular expression:
>> ^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$
>> [email protected], *Y*
>> [email protected], *Y*
>> ad{[email protected], N
>> [email protected], *Y*
>> [email protected], *Y*
>> [email protected], N
>> no#good, N
[Using a regular expression to validate an email address|http://stackoverflow.com/questions/201323/using-a-regular-expression-to-validate-an-email-address]
Edited by: stefan nebesnak on 4.12.2012 2:25

MDS Business rule regular expression to validate code to be combination of two attributes

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