Removing a Column

Question

Removing a Column

Steve Jones - SSC Editor

SSC Guru

Points: 736297
More actions
September 23, 2022 at 12:00 am

#4079839

Comments posted to this topic are about the item Removing a Column

Viewing 3 posts - 1 through 2 (of 2 total)

You must be logged in to reply to this topic. Login to reply

Jeff Moden SSC Guru Points: 1004378 More actions · Answer 1

Good question, Steve. If you want to have some fun with two more questions, ask folks how to de-allocate the space at the page level and then how to actually recover the space at the HoBT level. 😀

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

ScottPletcher SSC Guru Points: 101109 More actions · Answer 2

Btw, you should always specify nullability (NULL / NOT NULL) when ADDing a column, otherwise it's extremely difficult to determine what you'll get there.

SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".