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Concatenating Strings to NULL values
Concatenating Strings to NULL values
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Bru Medishetty
Bru Medishetty
Posted Sunday, January 31, 2010 4:36 PM
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Concatenating Strings to NULL values
Bru Medishetty
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Post #856878
Bru Medishetty
Bru Medishetty
Posted Monday, February 01, 2010 7:54 AM
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Interestingly, I found the database option "concat null yields null" when set to either True or False, it yields null values only.. unless SET CONCAT_NULL_YIELDS_NULL ON is specified..
I could not upload in the comments section, so find them here..
Test script with the option turned ON
Test script with the option turned OFF
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Post #857200
L' Eomot Inversé
L' Eomot Inversé
Posted Tuesday, February 16, 2010 8:45 AM
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I think that what is going on here is that the properties of the connection are over-riding the DB option - the connection supporting a QA or SMSS query window always has concat null yields null ON for the connection until it is overridden by a SET statement. The db option is only relevant for connections where concat null yields null is not set for the connection, so it is not relevant to QA or SMSS query windows.
Tom
Que conclure à la fin de tous mes longs propos? C'est que les préjugés sont la raison des sots. (Voltaire, 1756)
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