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why wont this join?

Author

Topic

kcarbone1970
Yak Posting Veteran

52 Posts

Posted - 2015-03-31 : 12:49:52

I keep getting invalid column ?? abc


SELECT    CAST(c.CountyCode AS VARCHAR(2)) + CAST(c.DistrictCode AS VARCHAR(10)) +  CAST(c.SchoolCode AS VARCHAR(12)) AS abc

FROM CAHSEE2014new c INNER JOIN CDS a ON abc = a.CDSCODE

Cartesian Yak

gbritton
Master Smack Fu Yak Hacker

2780 Posts

Posted - 2015-03-31 : 13:19:03

You can't use an alias until the order by clause. here's one easy way around it.


select abc
from CAHSEE2014new c
cross apply
(
    select CAST(c.CountryCode AS VARCHAR(2)) + CAST(c.DistrictCode AS VARCHAR(10)) +  CAST(c.SchoolCode AS VARCHAR(12)) AS abc
) _
INNER JOIN CDS a ON abc = a.CDSCODE

kcarbone1970
Yak Posting Veteran

52 Posts

Posted - 2015-04-01 : 13:39:42

Thank You!

Cartesian Yak

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