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 Please help me this query very urgent please!!

Author  Topic 

AskSQLTeam
Ask SQLTeam Question

0 Posts
Posted - 2006-03-07 : 08:18:16
Anand writes "Hi all please help me in my query one recruiter ask me how to do this. here it is what they did ask me:-------
there is one table in that table two columns name and gender and the things is that suppose the table is like that

Name Gender
Ken  M
kate F
Lucy F
Brian M
so please what we have to do write only one single query which we will select all the male from the databse and update them to female and all female to Mail but this should be only in one single query.
Not a two query at all ok
please help i did use select case but no luck!!!
:(
please reply to me onephpguy@yahoo.com
Thanks to whole SQL team."

robvolk
Most Valuable Yak

15732 Posts
Posted - 2006-03-07 : 08:18:55
Before posting any answers, please refer to this thread:

http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=62702
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khtan
In (Som, Ni, Yak)

17689 Posts
Posted - 2006-03-07 : 08:25:16
What have you already tried ?

----------------------------------
'KH'
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mr_mist
Grunnio

1870 Posts
Posted - 2006-03-07 : 08:26:33
Before I can provide an answer to this question, I need to know which washing powder Lucy uses.

-------
Moo. :)
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twhelan1
Yak Posting Veteran

71 Posts
Posted - 2006-03-07 : 09:29:26
Must have been a job interview with a Swiss company? Nevermind... bad joke.

~Travis
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Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts
Posted - 2006-03-07 : 11:26:44
This should do the job.

update Mytable
set
	Gender =
		case
		when name in ('Ken','Brian')
		then 'F'
		when name in ('Kate','Lucy')
		then 'Mail'
		else Gender
		end




CODO ERGO SUM
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jsmith8858
Dr. Cross Join

7423 Posts
Posted - 2006-03-07 : 11:41:04
Perhaps he works for a doctor that performs sex changes?
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graz
Chief SQLTeam Crack Dealer

4149 Posts
Posted - 2006-03-07 : 12:37:59
quote:
Originally posted by Michael Valentine Jones

This should do the job.

update Mytable
set
	Gender =
		case
		when name in ('Ken','Brian')
		then 'F'
		when name in ('Kate','Lucy')
		then 'Mail'
		else Gender
		end




CODO ERGO SUM


I really hope someone submits this in an interview.

===============================================
Creating tomorrow's legacy systems today.
One crisis at a time.
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Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts
Posted - 2006-03-07 : 13:58:58
quote:
Originally posted by graz
...I really hope someone submits this in an interview...

I believe it meets all stated requirements.





CODO ERGO SUM
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SwePeso
Patron Saint of Lost Yaks

30421 Posts
Posted - 2006-11-10 : 00:45:35
This can be fun!
update Mytable
set
	Gender =
		case
		when len(name) % 2 = 0
		then 'M'
		else 'F'
		end


Peter Larsson
Helsingborg, Sweden
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madhivanan
Premature Yak Congratulator

22864 Posts
Posted - 2006-11-10 : 10:51:44


Madhivanan

Failing to plan is Planning to fail
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General Anders
Starting Member

3 Posts
Posted - 2007-07-23 : 19:40:53
It sounds like the professor isn't asking you to modify the database but just to return the inverse of M/F? If the datatypes are set properly (restricts to M or F) could we just use the NOT function?

select name, NOT gender
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