The MySQL client raises error 2052 CR_NO_STMT_METADATA when you request metadata from a prepared statement that returns no result set.
MySQL Error 2052: CR_NO_STMT_METADATA occurs when a client API tries to fetch column metadata from a prepared statement that produces no result set, such as INSERT or UPDATE. Call metadata functions only after SELECT statements or test mysql_stmt_field_count first to resolve the issue.
Prepared statement contains no metadata
MySQL throws Client Error 2052 with the message “Prepared statement contains no metadata” when a client program calls mysql_stmt_result_metadata or similar functions on a prepared statement that does not return a result set.
The error is client-side and appears in native connectors (C, C++, Java, PHP, Python) when you treat a non-SELECT statement as if it produced columns.
Fixing it prevents wasted network round-trips and stops libraries from halting execution.
MySQL returns metadata only for prepared SELECT, SHOW, or DESCRIBE statements. INSERT, UPDATE, DELETE, and DDL statements return an affected-rows count but no column list.
Calling metadata APIs after those statements triggers error 2052.
Mismatched statement reuse, forgotten statement re-prepare after a schema change, or framework bugs that assume every statement returns data are frequent triggers.
Call mysql_stmt_field_count (or its equivalent) immediately after mysql_stmt_prepare. If the count is zero, skip metadata retrieval and execute the statement directly.
Always re-prepare statements after exchanging SQL text.
In ORMs, update to the latest driver or patch your query builder to detect statement types before requesting metadata.
Scenario: A loop alternates SELECT and INSERT on the same prepared handle. Solution: Close or re-prepare the handle for each statement type so metadata is only requested for SELECT.
Scenario: PHP mysqli_stmt_result_metadata is called on UPDATE.
Solution: Surround the call with if(mysqli_stmt_field_count($stmt)>0) checks.
Separate read and write prepared statements, test field counts before metadata access, and enable MySQL client warnings during development to surface misuse early.
Galaxy’s context-aware AI suggests correct statement patterns and warns when a metadata call is unnecessary, reducing the risk of CR_NO_STMT_METADATA in team code reviews.
Error 2014: Commands out of sync arises if you continue after 2052 without clearing results.
Resolve 2052 first, then ensure proper result consumption.
Error 1242: Subquery returns more than 1 row differs because it is a server SQL error, not a client metadata issue, and requires query rewrite rather than API changes.
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Occurs when you issue a new command without properly handling the previous statement's results. Often appears after ignoring 2052. Clear or close the statement to fix.
Raised when you try to execute or fetch from an invalid statement ID. Happens if you close a handle too early while chasing 2052.
A server-side logical error unrelated to metadata.
Indicates the subquery needs LIMIT 1 or aggregation.
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The client requested column metadata from a prepared statement that does not return a result set, such as INSERT or UPDATE, so MySQL raised error 2052.
No. Ignoring it often leads to follow-up errors like 2014. Check field counts and call metadata routines only for statements that return data.
Call mysql_stmt_field_count immediately after mysql_stmt_prepare. A value of zero means no columns will be returned and metadata calls should be skipped.
Yes. Galaxy’s SQL editor analyzes prepared statement patterns and warns when result metadata calls are unnecessary, reducing the likelihood of triggering error 2052 in team code.
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