Messages tab for SQL Server messages

[GordonBeeming]

Description

Messages pane below results showing SQL Server output messages.

Content

• PRINT statement output
• Row count messages ("(N row(s) affected)")
• Error messages with line numbers
• Warning messages

Acceptance Criteria

• Tabbed view: Results | Messages (switchable)
• Messages appear in order received
• Errors highlighted in red with line/column info
• Clickable error line numbers navigate to the error position in the editor
• Messages auto-scroll to bottom
• Copy messages to clipboard