MySQL error 1348 occurs when an UPDATE or INSERT targets a column that the server has marked read-only, such as a derived column, calculated field, or a view column lacking proper keys.
MySQL Error 1348: ER_NONUPDATEABLE_COLUMN means you tried to modify a column that MySQL treats as read-only, often in a view, join, or derived table. Grant direct table access, add WITH CHECK OPTION to the view, or rewrite the query to target the base table to fix it.
Column '%s' is not updatable
MySQL raises error 1348 with the message “Column '%s' is not updatable” when you attempt to INSERT, UPDATE, or DELETE through a view, join, or derived table that MySQL deems read-only.
The server marks a column non-updatable when it cannot safely map the change back to a single underlying physical column, preventing silent data loss. Correcting the query or the object definition removes the restriction.
Updating a view that lacks a primary key or WITH CHECK OPTION forces MySQL to treat its result set as read-only, triggering error 1348.
Modifying a column that is produced by an expression, aggregate, window function, or constant also fails because such columns have no direct storage location.
Updating through a multitable join or subquery alias (derived table) is blocked unless every referenced column belongs to exactly one underlying table.
Target the base table directly if possible. Updating the real table bypasses read-only view restrictions.
For views you need to update, redefine them with primary keys and add WITH CHECK OPTION so MySQL can verify each row maps to a unique base-table row.
Remove calculated columns from your UPDATE list or rewrite them as stored columns if business logic permits.
Scenario: Updating a timestamp column in a view that joins two tables. Solution: Issue the UPDATE on the single table instead.
Scenario: Inserting into a view that selects COUNT(*) AS total. Solution: Insert into the underlying fact table and let the view recalculate totals.
Scenario: Updating through Galaxy’s editor using an auto-generated query. Solution: Use Galaxy AI copilot to rewrite the query so it hits the base table, then endorse the correct version for teammates.
Create views with explicit primary keys and WITH CHECK OPTION to keep them updatable.
Avoid including computed or aggregate columns in views you intend to modify.
Leverage role-based permissions in Galaxy so users run vetted, updatable queries instead of ad-hoc join updates.
Error 1093 “You can’t specify target table” appears when a query updates and selects from the same table without an alias. Rewrite the query or use a temporary table.
Error 1288 “The target table is not updatable” is broader and applies to entire views; check the view definition and keys.
The view joins multiple tables, so MySQL cannot map changes to a single target table.
The column is derived from an expression or aggregate and has no physical storage.
The view omits a primary key or unique index, making row identity ambiguous.
You attempted to update a result set produced by a subquery in the FROM clause.
Raised when an entire view or derived table is non-updatable, not just one column.
Occurs when a subquery references the table being updated without proper aliasing.
Raised when a column in the UPDATE list or WHERE clause does not exist in the referenced tables.
No. You must rewrite the query or schema so the column maps to a real table column.
Not always. If each column maps to exactly one underlying table and the view has a primary key, it may still be updatable.
Galaxy’s AI copilot flags non-updatable views during query generation and suggests direct table updates, reducing runtime errors.
Error 1348 appears in MySQL 5.0 and later, including Percona and MariaDB forks.
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