Careful with table name alias

Question

Careful with table name alias

joeroshan

SSChampion

Points: 10377
More actions
May 13, 2010 at 8:58 pm

#221096

Comments posted to this topic are about the item Careful with table name alias
----------------------------------------------------------------------------------------------------------------------------------------------------
Roshan Joe
Jeff Moden -Forum Etiquette: How to post data/code on a forum to get the best help[/url]

Viewing 15 posts - 1 through 15 (of 44 total)

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

Atif-ullah Sheikh SSChampion Points: 12495 More actions · Answer 1

Very interesting...

----------------------------------------------------------------------------------------------------------------------------------------------------------------------

Sometimes, winning is not an issue but trying.
You can check my BLOG [font="Arial Black"]here[/font][/url][/right]

SQLRNNR SSC Guru Points: 281334 More actions · Answer 2

I think the results on this should be expected. I think the query was written interestingly enough.

Jason...AKA CirqueDeSQLeil
_______________________________________________
I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
Posting Performance Based Questions - Gail Shaw[/url]
Learn Extended Events

erajendar SSC Eights! Points: 840 More actions · Answer 3

It is very interesting. However, am still not clear on [flag ='y' ]. Can someone tell me what is this flag. I didnt get any content in BOL.

thanks

erajendar

Koen Verbeeck SSC Guru Points: 259105 More actions · Answer 4

Good question, although not that hard (for 2 points).

erajendar (5/13/2010)
It is very interesting. However, am still not clear on [flag ='y' ]. Can someone tell me what is this flag. I didnt get any content in BOL.

The flag isn't actually there. Since it is contained in brackets, it is just an alias name for the table.

Need an answer? No, you need a question
My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

muhammad.mazhar SSC Veteran Points: 290 More actions · Answer 5

very interesting, this table alias in select clause got me puzzled for a moment. 🙂

Th. Fuchs SSC Enthusiast Points: 144 More actions · Answer 6

fine, but correct is 'Careful with '

(no rtrim and lower used)

keyur.patel SSC Enthusiast Points: 189 More actions · Answer 7

Really good question, create confusion in mind for the "=" sign used in alias.

Kratos SSC Enthusiast Points: 128 More actions · Answer 8

I learnt another thing, thanks to the Question of the day. 🙂

saranya.megalai SSC Rookie Points: 30 More actions · Answer 9

if flag is alias then can we use next statement like

select [flag='y'].some_data from [where]?

Koen Verbeeck SSC Guru Points: 259105 More actions · Answer 10

saranya.megalai (5/14/2010)
if flag is alias then can we use next statement like
select [flag='y'].some_data from [where]?

No 🙂

I haven't tested it, but the following should work:

select [flag='y'].some_data from [where] [flag='y']

Need an answer? No, you need a question
My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

Kari Suresh Hall of Fame Points: 3712 More actions · Answer 11

Really interesting and good question. :Wow:

KSB
-----------------------------
Thousands of candles can be lit from a single candle, and the life of the candle will not be shortened. Knowledge and happiness never decreases by being shared.” - Buddha

malleswarareddy_m SSCertifiable Points: 5847 More actions · Answer 12

Really its a good question about square brackets.we can use square brackets efficiently at any time.

Malleswarareddy
I.T.Analyst
MCITP(70-451)

RichardDouglas SSCarpal Tunnel Points: 4029 More actions · Answer 13

Interesting question, it was the alias that almost caught me out. Have seen plenty of attributes named as reserved words in the past which has caused a few issues unless squared brackets were used. Thinking back I had an interview question once where there was a table called ORDER and the question was what would happen.

Hope this helps,
Rich

[p]
[/p]

DaveD-128295 SSChasing Mays Points: 608 More actions · Answer 14

saranya.megalai (5/14/2010)
if flag is alias then can we use next statement like
select [flag='y'].some_data from [where]?

Yes it would look like:

Select [flag ='y' ].some_data from [where] [flag ='y' ]