8:23 AM
Deep Dey
********************Check For NULL********************
If you check for Null using <> or = operator, it might not return the results even if the table contains NULLs
Select * from Person.Address where AddressLine2 = Null
will not yield any results
on the otherhand it is a good practice to get the intended value using the following
Select * from Person.Address where AddressLine2 Is Null
If you still want to use = or <> with Nulls then the following will work
SET ANSI_NULLS OFF
Select * from Person.Address where AddressLine2 = Null
However, this feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
If you check for Null using <> or = operator, it might not return the results even if the table contains NULLs
Select * from Person.Address where AddressLine2 = Null
will not yield any results
on the otherhand it is a good practice to get the intended value using the following
Select * from Person.Address where AddressLine2 Is Null
If you still want to use = or <> with Nulls then the following will work
SET ANSI_NULLS OFF
Select * from Person.Address where AddressLine2 = Null
However, this feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
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