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Group by with Concat

Group by with Concat

Group by with Concat

(OP)
Hi,

I am new to this forum and hope I can get some good info.
I am trying to write an sql statement that has a group by and concatinates a field as one string. I have been trying to use the following but with no success. I have tried many ways but none seam to work.

select distinct wieghts.part_no,sum(wieght) as wieght, concat(material_code) as allmaterials
from wieghts
where part_no like 'DH/Y0%'
group by wieghts.part_no


Kind Regards
Bill Button

RE: Group by with Concat

What version of PSQL?
What error are you getting?

Mirtheil
Certified Pervasive Developer
Certified Pervasive Technician
http://www.mirtheil.com

RE: Group by with Concat

(OP)
Hi,

Thanks for you reply,

The Version on Pervasive is 9.1
The error message "[LNA][Pervasive][ODBC Engine Interface] Invalid parameter count for scalar function concat"

I am not sure it likes the concat function in conjunction with the group by and I could not think of another way of doing this.

Bill

RE: Group by with Concat

Actually, I think it's your CONCAT function itself that's the problem.  The PSQL docs say the format for CONCAT is:

CONCAT (string1, string2)

Your's is only:

concat(material_code) as allmaterials

You're trying to concat something with nothing and that doesn't work.

Mirtheil
Certified Pervasive Developer
Certified Pervasive Technician
http://www.mirtheil.com

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