In Aqua Data Studio 18.0.10, the Describe feature does not work for tables in SQL Server 2008 databases.  Steps to reproduce are as follows:

• Open a new Query Analyzer window for a database on a SQL Server 2008 server
• Type in a table name into the Query Analyzer window
• Select the table name by double clicking it or manually highlighting it
• Select Query -> Describe from the menu
• Observe that the results are as follows: "Error occurred while describing: null..."

I have tested this against view objects in SQL Server 2008 and it works; this only appears to be broken for table objects.  I have also tested it in MySQL and SQLite and it appears to work fine for tables on both server types.  As far as I can tell, this is only broken for Table objects in SQL Server 2008.

ADS Version: 18.0.10, build 54137

OS Version: macOS Sierra 10.12.4

SQL Server Version: Microsoft SQL Server 2008 (SP3) - 10.0.5500.0 (X64)