<p>MySQL raises ER_VIEW_NONUPD_CHECK when you add WITH CHECK OPTION to a view that the server considers non-updatable.</p>
<p>MySQL Error 1368 ER_VIEW_NONUPD_CHECK appears when WITH CHECK OPTION is declared on a non-updatable view. Remove the clause or make the view updatable-for example, select a single base table without aggregates-to resolve the error.</p>
CHECK OPTION on non-updatable view '%s.%s'
MySQL throws ER_VIEW_NONUPD_CHECK with SQLSTATE HY000 when a CREATE VIEW or ALTER VIEW statement includes WITH CHECK OPTION but the view is not updatable. An updatable view must allow INSERT, UPDATE, or DELETE to propagate to its base table. When the optimizer detects that updates cannot be pushed down, it blocks the definition.
WITH CHECK OPTION guarantees that any row written through the view satisfies its WHERE clause. If a view cannot accept writes, the guarantee is pointless and potentially misleading. Therefore, MySQL enforces the rule at definition time.
The statement returns an error and the view is not created or altered, halting deployment scripts. Continuous integration pipelines and application releases can fail until the definition is corrected.
The rule exists in MySQL 5.6, 5.7, 8.0, and MariaDB forks. Behavior is consistent across platforms because it is part of the SQL standard.
The view selects derived columns, expressions, or functions instead of direct base table columns, preventing updates.
GROUP BY, HAVING, DISTINCT, or window functions make the result set non-deterministic for row-level writes, so the view becomes non-updatable.
Combining multiple tables or UNION clauses breaks the one-to-one mapping required for updatable views.
Row restrictions hide part of the underlying data set, so MySQL blocks updates.
If MySQL cannot use the MERGE algorithm, it falls back to TEMPTABLE, which is inherently read-only.
Occurs when an INSERT or UPDATE through a view violates its CHECK OPTION.
Raised when trying to modify a result set that is fundamentally read-only, including some views.
Triggered when the SELECT list of a view contains invalid items, such as a subquery.
No - the option only enforces data validation on writes. Select queries behave the same.
Not directly. Convert the view to reference a single table or use triggers to enforce constraints.
Run SELECT * FROM information_schema.views and check the IS_UPDATABLE column. A value of YES confirms updatability.
Minimal - MySQL only evaluates the view WHERE clause during write operations.
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