## Direct Database Query Issues

A direct database query issue occurs when SQL queries are not properly prepared before execution, potentially leading to SQL injection vulnerabilities.

Using the case as a reference, check the code to see if the database query is properly prepared.

Details:
- All SQL queries with variable data must use `$wpdb->prepare()`.
- Queries using only hardcoded values (no variables) do not need `$wpdb->prepare()`.
- `$wpdb->insert()`, `$wpdb->update()`, `$wpdb->delete()`, and `$wpdb->replace()` handle their own preparation when format parameters are provided.
- Table names cannot be prepared with `$wpdb->prepare()` — using `$wpdb->prefix` concatenation for table names is acceptable.
- Column names also cannot be prepared — they should be whitelisted/validated instead.
- `IN` clauses with dynamic lists need special handling with multiple placeholders.
- If the variable used in the query comes from a trusted source (e.g., `$wpdb->posts`, `$wpdb->prefix`), it may not be an issue.
- Interpolated variables in SQL strings that are not user-controlled may be flagged but could be acceptable if the source is verified.
