Adding Multiple Columns

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Adding Multiple Columns

Steve Jones - SSC Editor

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April 3, 2023 at 12:00 am

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Comments posted to this topic are about the item Adding Multiple Columns

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Jeff Moden SSC Guru Points: 1003865 More actions · Answer 1

Nice question, Steve!

--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)

Steve Jones - SSC Editor SSC Guru Points: 734459 More actions · Answer 2

Thanks, ran into someone that didn't know you could do this in one statement.

ScottPletcher SSC Guru Points: 100949 More actions · Answer 3

But you should add the NULLability setting to the column. The default is somewhat obscure so you should always specify NULL or NOT NULL when adding a column.

SQL DBA,SQL Server MVP(07, 08, 09) A socialist is someone who will give you the shirt off *someone else's* back.

Jeff Moden SSC Guru Points: 1003865 More actions · Answer 4

Steve Jones - SSC Editor wrote:

Thanks, ran into someone that didn't know you could do this in one statement.

That's the main reason I really liked the question. I've run into a whole lot of folks by way of code reviews that don't know this.

There's another nuance about adding columns. I'll see if I'm remembering it correctly and, maybe, submit a question on it.

And, thanks for what you do, Steve.

--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)