I am looking for a SQL query that outputs the function definitions for all of the user defined functions in a database catalog.
I have found as far as
SELECT O.name, M.definition, O.type_desc, O.type
FROM sys.sql_modules M
INNER JOIN sys.objects O ON M.object_id=O.object_id
WHERE O.type IN ('IF','TF','FN')
SELECT name, definition, type_desc
FROM sys.sql_modules m
INNER JOIN sys.objects o
ON m.object_id=o.object_id
WHERE type_desc like '%function%'
You could use a CTE:
with functions(routine_name) as
(SELECT ROUTINE_NAME FROM information_schema.routines WHERE routine_type = 'function')
select
OBJECT_DEFINITION(OBJECT_ID(routine_name)) AS [Object Definition]
from
functions
Similar to this solution: Query to list all stored procedures
SELECT *
FROM DIDS0100.INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = 'FUNCTION'
AND LEFT(ROUTINE_NAME, 3) NOT IN ('fn_')