Generate MD5 hash string with T-SQL

CONVERT(VARCHAR(32), HashBytes('MD5', '[email protected]'), 2)

Use HashBytes

SELECT HashBytes('MD5', '[email protected]')

That will give you 0xF53BD08920E5D25809DF2563EF9C52B6

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SELECT CONVERT(NVARCHAR(32),HashBytes('MD5', '[email protected]'),2)

That will give you F53BD08920E5D25809DF2563EF9C52B6

Solution:

SUBSTRING(sys.fn_sqlvarbasetostr(HASHBYTES('MD5','your text')),3,32)

None of the other answers worked for me. Note that SQL Server will give different results if you pass in a hard-coded string versus feed it from a column in your result set. Below is the magic that worked for me to give a perfect match between SQL Server and MySql

select LOWER(CONVERT(VARCHAR(32), HashBytes('MD5', CONVERT(varchar, EmailAddress)), 2)) from ...