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Proper way of using expr in complicated queries
Posted by: Chris Brown
Date: April 13, 2022 05:53AM

Trying to create the following query in Connector/C++ 8 (xDevAPI):
SELECT * FROM table
WHERE column1 IS NULL OR (column2 is NULL AND DATE_SUB(NOW(), INTERVAL 10 SECOND) > column1);

Not sure how to go about this WHERE part in code. Wrapping everything in expr() throws an error: CDK Error: After seeing '...IS NULL OR (column2 is NULL AND DATE_SUB(NOW(), INTERVAL ', looking at '10 SEC...': Expected ')' to close function argument list (cdk:8)

What is a proper way? Also will it work if I parametrize 10 with :timeout and then bind("timeout", 10)?

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Proper way of using expr in complicated queries
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April 13, 2022 05:53AM


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