Additional Articles


Technical Article

Writing an SSBS App When the Initiator and Target are on the Same Database

SQL Server Service Broker (SSBS), introduced with SQL Server 2005 and enhanced in SQL Server 2008, allows you to write queuing/message based applications within the database itself. This article discusses creating an application in which Initiator and Target both are in the same database.

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2010-08-30

2,117 reads

External Article

SQL Schema Comparison with Visual Studio 2010

we normally do development on the development box; then during the build preparation we compare the development database with the QA/UAT/Production database to identify differences and generate schema objects for synchronization or incremental deployment scripts. How we can compare schema objects between databases and generate synchronization or incremental deployment scripts?

2010-08-27

4,519 reads

Technical Article

A deadlock was detected while trying to lock variables in SSIS

Error: 0xC001405C at SQL Log Status: A deadlock was detected while trying to lock variables "User::RowCount" for read/write access. A lock cannot be acquired after 16 attempts. The locks timed out. Have you ever considered variable locking when building your SSIS packages? I expect many people haven’t just because most of the time you never see an error like the one above. I’ll try and explain a few key concepts about variable locking and hopefully you never will see that error

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2010-08-26

3,320 reads

Technical Article

Additional Columns in StreamInsight Event Flow Debugger

This tool is excellent when investigating what is going on in your StreamInsight Streams. I was looking through the menu items recently and went to Query => Event Fields I found that there were a couple of columns not added by default to the event viewer (Reminds me of the fact that the Variables viewer in SSIS hides columns also) Latency NewEndTime EnqueueTime Here they all are together. This gives us even more information about what is going on

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2010-08-19

1,579 reads

Technical Article

Performing a Left Anti Semi Join in StreamInsight

Performing a LEFT OUTER JOIN in TSQL is easy. The same logic in StreamInsight requires a little more work. In this presentation I show exactly how you can perform a LEFT OUTER JOIN on your event streams. Your browser cannot play this video. Learn how to fix this.

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2010-08-17

2,348 reads

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Question of the Day

Symmetric Key Encryption

If I run this statement in SQL Server 2025, how is the password encrypted?

CREATE SYMMETRIC KEY MySymmetricKey
WITH ALGORITHM = AES_256,
KEY_SOURCE = 'My secret key source passphrase',
IDENTITY_VALUE = 'My secret identity value'
ENCRYPTION BY PASSWORD = 'S&perS#cretP@ssword7';
GO

See possible answers