flexible search query for table description

Hi gurus.

I am beginner in SAP Hybris.

I want to know description of particular table (means which fields are present in tables and what are datatypes of those fields and all like we do in sql ) through HAC.

When i enter "describe {table name} " this query in HAC,its giving me an error that "query is not correct"

Please help me with correct query or any other possible solution