Query editor

The query editor runs batch SQL with ; and GO separators, cancel, history, Find/Replace, zoom/wrap, line numbers, bookmarks, and IntelliSense grounded in the Object Explorer catalog.

Results and Messages tabs support copy, filter, and export (CSV/TSV/JSON). Explain returns a structural plan-step stub today — not a cost-based graphical plan. Do not claim SSMS-style tuning plans yet.