Implementing Conditional Logic for Dependent Tasks Using SQL Output and Task Values
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10-26-2024 05:19 AM
Hi team,
I'm working on setting up a workflow with task dependencies where a subsequent task should execute conditionally, based on the result of a preceding SQL task. Specifically, I need to evaluate an if/else condition on the output of the SQL query to determine whether the dependent task should run.
Currently, I’m running the SQL query within a Spark script using Spark compute, setting task values from the SQL output with dbutils.jobs.taskValues.set(key="my_value", value=my_result). This approach has been working well with Spark, but I'm interested in using SQL Compute (SQL Warehouse) for this task, as it could be more efficient for SQL workloads. My goal is to maintain the ability to set and reference task values from the SQL output while using SQL Warehouse.
Does anyone have recommendations for achieving this, or alternative approaches to manage conditional task execution based on SQL output when using SQL Compute? Any insights into the best practices for conditional task dependencies in Databricks would be greatly appreciated.
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10-26-2024 06:41 AM
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10-27-2024 10:48 PM
Thanks sathya,
I initially explored this approach but ran into challenges passing the SQL query output directly into an If/Else condition within the control flow. As a workaround, I used a Spark script to execute the SQL and then passed the output via dbutils.jobs.taskValues.set(key="my_value", value=my_result). However, if there’s a more streamlined method to achieve this directly, I’d love to learn about it. Any specific techniques or examples you could share on handling SQL outputs in control flow conditions would be invaluable. Thank you again for your insights!
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10-31-2024 08:08 AM
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