With the release of 7.1, Couchbase N1QL adds support for JavaScript user-defined functions. Originally as seen in Part2: Views and UDFs and Part3: Stored Procedures, we used N1QL UDFs to map the MySQL UDFs and stored procedures. With N1QL UDFs, we can do only a single query or operation per function. This meant our translation to UDFs in Couchbase was a bit cumbersome. However, with the addition of the JS UDFs,  mapping an SQL function as is becomes much simpler. 

Now let’s look at the individual functions and stored procedures and their direct mappings.

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