Something like:
SELECT * FROM sys.functions
Something like:
SELECT * FROM sys.functions
Something like this will give you all the details of the udfs you've created.
SELECT *
FROM
sysobjects
WHERE
(type = 'TF' OR type = 'FN' OR type = 'IF')
AND
objectproperty(id, 'IsMSShipped') = 0
Get rid of the second condition if you want everything.
This will give you the names and the definitions :
SELECT SPECIFIC_NAME, ROUTINE_DEFINITION
FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = 'FUNCTION'