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I have a university table that consists of prospective student information. I need to populate the email address column and the format is [email protected].

I have been trying to used the CONCAT method but every time I execute the code I run into an error stating that 'invalid number of arguements'.

SELECT CONCAT(first_name, '.', last_name, '@su.edu') AS prospect_email FROM prospect;

The expected output should be [email protected].

melpomene
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Chris
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1 Answers1

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CONCAT accepts two params, CONCAT returns first_name concatenated with '.'.

You could nest bunch of concats like

SELECT CONCAT(first_name, CONCAT('.', CONCAT(last_name, '@su.edu'))) AS prospect_email FROM prospect;

but it's easier to use concatenation operator ||:

SELECT first_name || '.'  || last_name || '@su.edu' AS prospect_email FROM prospect;

See the concat and concatenation documentation.

Dontwan
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