QL0011 Column Not Found

A referenced column could not be matched in the loaded schema snapshot.

When It Appears

• Level 3 validation is active and a column name is missing in SELECT, WHERE, JOIN, ORDER BY, INSERT, or UPDATE
• Typos and stale schema snapshots are the most common causes

Example

var query = new SqlQuery("SELECT customer_nam FROM dbo.customers");
Assert.Contains(query.Errors, issue => issue.Code == "QL0011");

Next Steps

• Confirm the column belongs to the referenced table
• Refresh the snapshot if the schema changed
• Review issue suggestions and candidates