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SELECT (Transact-SQL)


SELECT (Transact-SQL)

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Koen Verbeeck
Koen Verbeeck
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An easy one to close the week, thanks!



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Koen Verbeeck
Koen Verbeeck
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kapil_kk (10/25/2012)
One question, I am confused on this...

select ID, name name from person

select ID ID, name name from person

Both these statements dont give any error message and run successfully...
wht is it so?


Think both statements as the following:


select ID, name [AS] name from person;

select ID [AS] ID, name [AS] name from person



The AS keyword is optional when used for aliases in the SELECT statement.



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Lokesh Vij
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kapil_kk (10/25/2012)
One question, I am confused on this...

select ID, name name from person

select ID ID, name name from person

Both these statements dont give any error message and run successfully...
wht is it so?


'coz they are syntactically correct. They follow the belew rule

SELECT <column_name> [optional "AS" keyword] [optional <alias_name>]
FROM <table_name>


Alias_name can be same as that of column_name. Hope it is clear now

~ Lokesh Vij

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kapil_kk
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Thanks Koen and Lokesh Smile

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To get quick answer follow this link:
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Lokesh Vij
Lokesh Vij
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demonfox (10/25/2012)
I found the glitch ..
nice question...

thanks


A trick to catch the glitch.
1) Use SSMS, go to "Query" and select "IntelliSense Enabled"
2) Copy paste the code
3) the syntax error in the query (with error) will be highlighted with zig-zag red line :-)

Check the attached image.



~ Lokesh Vij

Guidelines for quicker answers on T-SQL question
Guidelines for answers on Performance questions

Link to my Blog Post --> www.SQLPathy.com

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palotaiarpad
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An easy basic question! Thanks!
Stewart "Arturius" Campbell
Stewart "Arturius" Campbell
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Nice, simple, back-to-basics question, thanks

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JoseACJr
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Lokesh Vij (10/25/2012)
demonfox (10/25/2012)
I found the glitch ..
nice question...

thanks


A trick to catch the glitch.
1) Use SSMS, go to "Query" and select "IntelliSense Enabled"
2) Copy paste the code
3) the syntax error in the query (with error) will be highlighted with zig-zag red line :-)

Check the attached image.



Thanks to all!
Ps: don´t "copy paste the code", ok ?
;-)
Thomas Abraham
Thomas Abraham
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Thanks for the question. A basic but clear one. Just right for a Friday. More?

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(Bob Brown)
(Bob Brown)
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Thanks. I needed an easy one for Friday. Confused me for a second with having 5 possible answers and showing only 4 examples but was awake enough to get it right.
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