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MySQL "Before insert" trigger stops insertion process
Posted by: Hamsavardhini Deventhiran
Date: December 27, 2016 03:57AM

I have one sensors which is writing its processed data into an MySQL database.

Since the scanning process is every 40seconds, my data grows huge.

So I decided to prevent my sensor to write some unwanted data using triggers.

But the thing is, If any such row satisfies violates the condition, mysql trigger throws exception and prevent my sensor from writing data.

From the time I executed my the trigger till I deleted it, there is no data written by sensor. As soon as I dropped my trigger, data started to flow in.

My Expectation:-
I want to write a logic to an mysql table which should not allow insertion of a record, lets say if a column value is "A" and insertion process should continue.

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MySQL "Before insert" trigger stops insertion process
December 27, 2016 03:57AM

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