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SQL Server internals by Paul White
Showing posts with label
Merge
.
Show all posts
Showing posts with label
Merge
.
Show all posts
Wednesday 2 August 2023
Importing a File in Batches
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Importing a File in Batches There are a million ways to import data into SQL Server. Most of the time, we want to inges...
Sunday 26 July 2020
A bug with Halloween Protection and the OUTPUT Clause
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A bug with Halloween Protection and the OUTPUT Clause Background The OUTPUT clause can be used to return results fro...
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Thursday 21 February 2013
Halloween Protection – The Complete Series
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Halloween Protection – The Complete Series I have written a four-part series on the Halloween Problem . Some of you wi...
Wednesday 6 February 2013
Incorrect Results with Indexed Views
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Incorrect Results with Indexed Views If you use MERGE , indexed views and foreign keys, your queries might return incor...
Monday 10 December 2012
MERGE Bug with Filtered Indexes
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MERGE Bug with Filtered Indexes A MERGE statement can fail, and incorrectly report a unique key violation when: The ...
Wednesday 4 August 2010
An Interesting MERGE Bug
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An Interesting MERGE Bug Investigating an optimizer transformation that exposes a bug in SQL Server’s MERGE implementa...
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