Explanation:
Option A is correct because external functions are indeed a type of User-defined Function (UDF) in Snowflake, specifically designed to call external code. Option B is incorrect because external functions do not contain their own SQL code; instead, they call external code. Option C is incorrect because external functions call code stored and executed outside Snowflake, not inside Snowflake. Option D is incorrect because external functions return a single value per row, not multiple rows. The community discussion strongly supports A as the correct answer, with 100% consensus and references to Snowflake documentation confirming external functions are UDFs that call external code.
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Which of the following statements accurately describes external functions in Snowflake?
A
They are a type of User-defined Function (UDF).
B
They contain their own SQL code.
C
They call code that is stored inside of Snowflake.
D
They can return multiple rows for each row received.
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