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Cancel flow if SQL DB unreachable?

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Posted on by funkyman50

I have a flow that triggers on a pretty short timer. It is set to cancel if the SQL query returns no results, but if the server goes down the flow keeps running and returns a null value instead and causes my flow to fail.

Does anyone have a better technique than what I've come up with that could handle both Nulls and 0 len?

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Building flows

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PrasadAthalye on at

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Re: Cancel flow if SQL DB unreachable?

You can just add a check to see if its not null. Add this as first condition. Make sure to use Null as an expression by typing it in Expression section. Below is an example. If you are writing positive condition for error then use equal to.

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Pstork1 68,678 Most Valuable Professional on at

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Re: Cancel flow if SQL DB unreachable?

You could add a Coalesce() function inside the length() to provide an empty string or array if the returned value is null.

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funkyman50 21 on at

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Re: Cancel flow if SQL DB unreachable?

Thanks to both of you! I'll try the coalesce() add-in first because that'll be easier to plug in.

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