How to resolve the failure of using WITH RECURSIVE in M…

If the use of the WITH RECURSIVE clause fails in MySQL, it may be due to a few reasons:

1. MySQL versions below 8.0 do not support WITH RECURSIVE clause; it is necessary to have MySQL 8.0 or above to use it.
2. There may be errors in the syntax of your query, particularly with the WITH RECURSIVE clause. Please carefully review your query to ensure it follows the syntax rules for WITH RECURSIVE.
3. Recursive query conditions are incorrect: WITH RECURSIVE is used for executing recursive queries, it must have a termination condition. If your recursive query does not have the correct termination condition set, it may result in query failure.

The solution to these problems is as follows:

1. Upgrade your MySQL version: If your current version is below 8.0, upgrade to 8.0 or higher to enable support for WITH RECURSIVE.
2. Check for grammar errors: carefully review your query statement for any syntax errors, you can refer to the official MySQL documentation for the correct syntax format of WITH RECURSIVE.
3. Set the termination condition for recursive queries: Make sure to properly set the termination condition in your recursive query to avoid infinite recursion leading to query failure.

If you are still unable to resolve the issue, you can provide specific search queries and error messages so we can better assist you in solving the problem.