Comments on: SQL SERVER – Solution of Puzzle – Swap Value of Column Without Case Statement

By: SQL SERVER – Simple Explanation and Puzzle with SOUNDEX Function and DIFFERENCE Function « SQL Server Journey with SQL Authority

Sat, 16 Jun 2012 01:31:17 +0000

[...] Earlier this week I asked a question where I asked how to Swap Values of the column without using CASE Statement. Read here: A Puzzle – Swap Value of Column Without Case Statement,there were more than 50 solutions proposed in the comment. There were many creative solutions. I have mentioned my personal favorite (different ones) here: Solution of Puzzle – Swap Value of Column Without Case Statement. [...]

By: harshcontractor

harshcontractor — Fri, 15 Jun 2012 16:15:15 +0000

Thanks Raji P Thomas for selecting my solution .

I have another simple solution.

UPDATE SimpleTable
SET Gender = LTRIM(REPLACE(‘ male female’,’ ‘ +Gender,”))
GO

By: Nikhildas

Nikhildas — Fri, 15 Jun 2012 04:20:55 +0000

Hai Pinal,

Really i inspired by myself bcoz of one solution among the five is mine.

I personally like the solution by SIJIN KUMAR V P

By using COALESCE() and NULLIF()

UPDATE SimpleTable
SET Gender = COALESCE(NULLIF(‘female’,Gender), ‘male’)

Thanks,
Nikhildas
Cochin

By: EscrimaRyan

EscrimaRyan — Thu, 14 Jun 2012 14:07:18 +0000

update SimpleTable
set Gender = coalesce(nullif(‘male’, Gender), nullif(‘female’, Gender))

By: SIJIN KUMAR V P

SIJIN KUMAR V P — Thu, 14 Jun 2012 11:17:59 +0000

Thank you all.
I like the Solution by Roji P Thomas
Its a general one and works for any values.

UPDATE S
SET S.Gender = D.Gender
FROM SimpleTable S
INNER JOIN SimpleTable D
ON S.Gender != D.Gender

Once again thank you so much Pinal for the excellent Puzzle that added a lot to my knowledge.

By: pinaldave

pinaldave — Thu, 14 Jun 2012 10:03:39 +0000

Roji P Thomas,

Great comment as usual. However, I must acknowledge that your comments are indeed the first one to start the great conversation.

By: Roji P Thomas

Roji P Thomas — Thu, 14 Jun 2012 02:43:05 +0000

To be clear, I will NOT use any of my solutions if I have to really use it in Production code. I will either use the good old CASE or IIF.

And the solutions I like from the comments are

UPDATE SimpleTable
SET Gender = COALESCE(NULLIF(‘female’,Gender), ‘male’)

UPDATE SimpleTable
SET Gender = RIGHT(‘female’, 10 – LEN(Gender))

By: sathyanarayanansrinivasan

sathyanarayanansrinivasan — Thu, 14 Jun 2012 02:21:21 +0000

I have never used that soundex function, as you said that was an excellent way of thinking I have never thought so Pinal.. Superb Sijin…