I need to process the first entry of the array, go back to the until loop, then process the second entry of the array, go back to the until loop and when I have gone thru the entire array I need to start with the first entry of the array again. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. After run is called, you may access the following properties on the hook object: descriptions: an array of cursor descriptions. However, in other cases, when single query is run, the return value will Returns a map created from the given array of entries. Executes the sql and returns a set of records. What are the advantages of running a power tool on 240 V vs 120 V? The type of step can be either INTERVAL DAY TO SECOND or INTERVAL YEAR TO MONTH. Ordering Specification. Returns the union of all the given maps. UNNEST is a very powerful feature, and it's possible to solve this problem using it. If you specify aWHEREclause, only the matching rows are deleted. handler (Callable | None) The result handler which is called with the result of each statement. Copyright 2021 Treasure Data, Inc. (or its affiliates). Executes the sql and returns the first resulting row. That said, you don't seem to have a good foundation in working with relational databases. Coordinator Kerberos Authentication. Is there any way to apply loop in a presto query. All other products or name brands are trademarks of their respective holders, including The Apache Software Foundation. if start is negative) with a length of length. Asking for help, clarification, or responding to other answers. { Returns a map that applies function to each entry of map and transforms the keys: Returns a map that applies function to each entry of map and transforms the values: Copyright The Presto Foundation. invoked to turn the final state into the result value. Description. Map entries with null values remain unchanged. This one is a bit complex. a one-element array containing the cursor description for the last statement. Starting at index [0] a function will get called on index [0], index [1], index [2], etc forEach () will let you loop through an array nearly the same way as a for loop:
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