From N1QL to JavaScript and Back – Part 3: Iterating over Documents and DML

The text explores the execution of N1QL statements within JavaScript functions, focusing on processing and handling data using iterators. It emphasizes the ability to gather data from a statement handle returned by the N1QL function and discusses methods for iterating through and processing documents using constructs like the for..of loop. The text highlights the importance of processing query values as they are received to manage memory efficiently and explains that iterators automatically close once processing is complete. It further illustrates data manipulation language (DML) statements, including inserting and deleting documents, and describes how these statements may return values, necessitating careful handling to ensure changes are properly committed to disk. The explanation includes the necessity for serial execution of statements to avoid losing unprocessed results. The discussion concludes with a brief mention of upcoming content on error handling.

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