Combine text and numerical fields in SQL statement

i NEED to combine a text field and a number field in a sequel query and I keep getting "Error converting data type varchar to numeric.

The combination should look like this when done:  HTR-123456789

My sql I tried was 'HTR-' + {TX.TRANSACTION_ID} as TX_ID

What am I missing?
Becky EdwardsEpic Clarity DeveloperAsked:
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Aneesh RetnakaranDatabase AdministratorCommented:
'HTR-' +  cast( TX.TRANSACTION_ID as varchar(10) ) as TX_ID

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Kent OlsenDBACommented:
SQL Server (like most SQL engines will do) is trying to convert 'HTR-' to an integer instead of converting left-to-right as you're expecting.

Several approaches will work just fine, like casting the integer to a string.

  'HTR-' + cast (TX.TRANSACTION_ID as varchar) as TX_ID

Good Luck,
Becky EdwardsEpic Clarity DeveloperAuthor Commented:
Thank you for the correct syntax using CAST.  This was extremely helpful!
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