User-defined function (UDF) overview

Users can create user-defined functions (UDFs). Functions are used to manipulate stored data in queries.

Creating a user-defined function (UDF)

Write custom functions using Java or JavaScript to use in SELECT, INSERT, and UPDATE statements.

Checking a user-defined function (UDF)

Check existence of UDF.

Dropping a user-defined function (UDF)

Use the DROP FUNCTION command to drop a UDF.

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