SQL Code Smells

Kevin Feasel

2017-09-01

T-SQL

Phil Factor has updated his code smells compendium:

Some time ago, Phil Factor wrote his booklet ‘SQL Code Smells’, collecting together a whole range of SQL Coding practices that could be considered to indicate the need for a review of the code. It was published as 119 code smells, even though there were 120 of them at the time. Phil Factor has continued to collect them and the current state of the art is reflected in this article. There are now around 150 of these smells and SQL Code Guard is committed to cover as many as possible of them.

I loved this booklet when it came out almost as much as I loved his Confessions of an IT Manager.  If you’re looking for some light reading over a long weekend, you can do a lot worse than this.

Related Posts

Refreshing Views After DDL Changes

Eduardo Pivaral shows how you can refresh the metadata for a view in SQL Server after one of its underlying tables or functions changes: So we proceed to execute an alter view over the first view: ALTER VIEW dbo.[vi_invoices_received_by]ASSELECT ConfirmedReceivedBy as [Received by], COUNT(InvoiceID) as [# of Invoices], CustomerIDFROM Sales.InvoicesGROUP BY ConfirmedReceivedBy, CustomerID;GO So we […]

Read More

Finding Gaps in Dates

Jason Brimhall shows how you can find gaps in your data: This method is the much maligned recursive CTE method. In my testing it runs consistently faster with a lower memory grant but does cause a bit more IO to be performed. Some trade-off to be considered there. Both queries are returning the desired data-set […]

Read More

Categories

September 2017
MTWTFSS
« Aug Oct »
 123
45678910
11121314151617
18192021222324
252627282930