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Internals of the Seven SQL Server Sorts – Part 1

 Posted by Paul White on April 29, 2015  6 Responses »
Apr 292015
 

Paul White (@SQL_Kiwi) rolls up his sleeves in his usual way, showing off the debugger several times while explaining the internals of SQL Server sorts.

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 Tagged with: sorting

The Read Uncommitted Isolation Level

 Posted by Paul White on April 23, 2015  6 Responses »
Apr 232015
 

With detailed information and his uncanny knack for explaining technical concepts very well, Paul White (@SQL_Kiwi) concludes his series on ACID, transactions, and isolation levels in SQL Server with a great read on READ UNCOMMITTED.

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 Tagged with: ACID, concurrency, isolation, NOLOCK, transactions

Mitigating Index Fragmentation

 Posted by Paul Randal on April 20, 2015  4 Responses »
Apr 202015
 

Paul Randal (@PaulRandal) of SQLskills provides some thorough and helpful tips on reducing or eliminating the impact of index fragmentation in SQL Server.

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 Tagged with: fragmentation

T-SQL Tuesday #65 : Teach Something New

 Posted by Aaron Bertrand on April 14, 2015  1 Response »
Apr 142015
 

For T-SQL Tuesday, Aaron Bertrand (@AaronBertrand) gives a little detail on something he learned this week about altering a column from NOT NULL to NULL.

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 Tagged with: alter table, metadata, T-SQL Tuesday

Dealing with high severity errors in SQL Server

 Posted by Tim Radney on April 8, 2015  No Responses »
Apr 082015
 

Tim Radney (@tradney) of SQLskills discusses addressing high severity errors in SQL Server – those with high severity (19-25) and the dreaded I/O error 825.

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 Tagged with: corruption, errors

An Indexed View Bug with Scalar Aggregates

 Posted by Paul White on April 1, 2015  5 Responses »
Apr 012015
 

Paul White (@SQL_Kiwi) follows up on his thorough breakdown of indexed view maintenance with the details of a bug that can render an indexed view incorrect.

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 Tagged with: aggregates, bug, indexed views

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