Concatenate integer and varchar

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Concatenate integer and varchar

Author

Topic

Apples
Posting Yak Master

146 Posts

Posted - 2008-02-29 : 11:49:22

I have a table like this:

tbl_Projects
-------------------------
ProjID | Description
-------------------------
1 | First
2 | Second
3 | Third

I want to write a SELECT statement that will output in this format:
1 - First
2 - Second
etc...

I've tried these two statements:

SELECT (ProjID + ' - ' + Description) AS Projects
FROM tbl_Projects
//Error: Conversion failed when converting the varchar value 'First' to data type int.

and

SELECT CONCAT(ProjID, CONCAT(' - ', Description)) AS Projects
FROM tbl_Projects
//Error: The data types int and varchar are incompatible in the concat operator.

Is there any way to concatenate an int value with a varchar value?

jdaman
Constraint Violating Yak Guru

354 Posts

Posted - 2008-02-29 : 11:58:51

[code]DECLARE @sample TABLE ( id INT, val VARCHAR(6) )
INSERT @sample ( id, val )
SELECT 1, 'First' UNION
SELECT 2, 'Second' UNION
SELECT 3, 'Third'

SELECT CAST(id AS VARCHAR)+' - '+val FROM @sample[/code]

slimt_slimt
Aged Yak Warrior

746 Posts

Posted - 2008-03-01 : 16:10:50

you are having problems merging int and varchar field; i assume.

use CAST to convert int to varchar.


select 
		projid
		,description 
		,cast(projId as varchar)+ ' - ' +description as full_name
from tbl_project

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2008-03-03 : 01:27:16

You should always specify length for character columns
http://sqlblogcasts.com/blogs/madhivanan/archive/2007/12/04/column-length-and-data-length.aspx

Madhivanan

Failing to plan is Planning to fail

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