<p>The view definition references a temporary table, which MySQL blocks for safety.</p>
<p>MySQL Error 1352: ER_VIEW_SELECT_TMPTABLE occurs when a view's SELECT pulls data from a temporary table. Replace the temp table with a persistent table or inline subquery, then rebuild the view to resolve the issue.</p>
View's SELECT refers to a temporary table '%s'
Error 1352 fires when you attempt to create or alter a view whose SELECT statement references a temporary table. MySQL disallows this because a temporary table exists only for the current session, making the view unusable for other sessions.
The error appears during CREATE VIEW, ALTER VIEW, or during startup when the server reloads view metadata. Fixing it is essential so that dependent queries run reliably across sessions.
Temporary tables vanish when the connection closes. If a view relied on such a table, any later connection would find the source missing and fail. MySQL therefore raises error 1352 to enforce schema consistency.
Developers often prototype queries with CREATE TEMPORARY TABLE, forget to swap in a permanent structure, and then wrap the logic in a view. Automated migration scripts can also capture a temp table by mistake.
Run SHOW CREATE VIEW your_view; or inspect your CREATE VIEW script. If the FROM clause lists a table created with CREATE TEMPORARY TABLE or prefixed by # in some tools, the cause is confirmed.
Replace the temporary table with one of three options: a permanent table, a derived table (subquery) inside the view, or a common table expression in MySQL 8.0+. Then recreate the view.
Keep prototype tables in a separate schema, add schema review checks, and run CI scripts that refuse to commit CREATE VIEW statements referencing temp tables. Galaxy's SQL editor highlights temporary table usage and warns before you save a view.
Developers spin up temp tables for quick joins and forget to replace them before committing the view.
Automated export tools may dump a view definition while a temp table is present, embedding it in source control.
Some GUI editors let multiple tabs share a connection. A view created in one tab may accidentally point to a temp table defined in another.
In test environments, frameworks that auto-create temp tables for fixtures can leak them into view definitions.
Triggered when the view SELECT contains a wildcard and a GROUP BY without column listing. Fix by naming columns explicitly.
Occurs when the CHECK OPTION fails due to a row not satisfying view criteria. Update data or relax the check.
Raised when a view references objects in a database where the definer lacks privileges.
No. MySQL hard codes the restriction to preserve schema integrity across sessions.
All supported MySQL versions enforce it, including 5.7 and 8.0.
Galaxy flags CREATE VIEW statements referencing temp tables and suggests inlining or persisting the data before you run them.
Not usually. The optimizer treats derived tables and CTEs efficiently, but always test on production data.
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