Common SQL Errors

MySQL Error 1345: ER_VIEW_NO_EXPLAIN - How to Fix and Prevent

Galaxy Team
August 6, 2025

EXPLAIN or SHOW was run on a view but the user lacks SELECT privilege on at least one underlying table, triggering ER_VIEW_NO_EXPLAIN.

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What is MySQL error 1345?

MySQL Error 1345 ER_VIEW_NO_EXPLAIN means the database blocked an EXPLAIN or SHOW because the caller lacks SELECT privilege on a table used by the view. Grant SELECT on the underlying tables or execute the command as a user with sufficient rights to resolve the issue.

Error Highlights

Typical Error Message

EXPLAIN/SHOW can not be issued; lacking privileges for

Error Type

Permission Error

Language

MySQL

Symbol

ER_VIEW_NO_EXPLAIN

Error Code

1345

SQL State

HY000

Explanation

Table of Contents

What is MySQL Error 1345 ER_VIEW_NO_EXPLAIN?

Error 1345 appears when MySQL refuses to execute EXPLAIN or SHOW on a view because the session user does not hold the required SELECT privilege on one or more base tables referenced by that view.

The server protects data visibility by checking privileges on every underlying object involved in the view definition. If any table check fails, MySQL returns ER_VIEW_NO_EXPLAIN with SQLSTATE HY000.

What Causes This Error?

Missing SELECT privilege on a base table is the dominant trigger. MySQL also emits the error when a definer with rights exists, but the current user invokes EXPLAIN without the proper WITH CHECK OPTION or views security context.

How to Fix MySQL Error 1345 ER_VIEW_NO_EXPLAIN

Grant the requesting user SELECT on all tables and views referenced by the target view, or rerun the command as the view DEFINER or a DBA role. After privileges are aligned, EXPLAIN will succeed.

Common Scenarios and Solutions

Developers in staging often copy production schemas but not grants and hit the error. DBAs resolve it by synchronizing privileges. In multi-tenant SaaS, read-only roles may need explicit table grants to inspect query plans safely.

Best Practices to Avoid This Error

Always package view creation and privilege grants in the same deployment script. Adopt role based access control so roles, not individuals, own permissions. Continuous integration tools like Galaxy can verify required grants before promotion.

Related Errors and Solutions

ER_TABLEACCESS_DENIED_ERROR (1142) arises for direct table queries with missing SELECT rights. ER_PROCACCESS_DENIED_ERROR (1370) blocks stored routine execution when EXECUTE privilege is absent. The fix pattern is identical—grant the necessary permission or adjust the security context.

Common Causes

Missing SELECT privilege

The user running EXPLAIN lacks SELECT on at least one base table, causing MySQL to reject the statement.

View created with SQL SECURITY DEFINER but invoked by low-privilege user

If the view was created without SQL SECURITY DEFINER, MySQL checks the invoker's rights, leading to the error.

Partial privileges on partitioned or federated tables

Having SELECT on some but not all partitions or remote tables still fails the privilege check.

Privilege revocation after view creation

DBAs might revoke table rights after the view exists, breaking future EXPLAIN or SHOW attempts.

Related Errors

MySQL Error 1142 ER_TABLEACCESS_DENIED_ERROR

Raised when direct SELECT on a table is attempted without proper rights.

MySQL Error 1370 ER_PROCACCESS_DENIED_ERROR

Occurs when EXECUTE privilege is missing for a stored procedure.

MySQL Error 1227 ER_SPECIFIC_ACCESS_DENIED_ERROR

Generic access denied message that covers many privilege failures.

FAQs

Does granting SELECT on the view fix the error?

No. The user needs SELECT on every base table used by the view, not just on the view itself.

Is it safe to use SQL SECURITY DEFINER?

Yes if the definer account is tightly controlled. It centralizes privilege management and avoids leaking data.

Can I allow EXPLAIN without exposing data?

Starting in MySQL 8.0.31 the EXPLAIN option FOR CONNECTION permits plan viewing without returning row data.

How does Galaxy help prevent this error?

Galaxy highlights privilege errors in the editor and lets teams verify roles during code review, reducing production surprises.

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