SQL like interface?

At first, this may not appear to be an appropriate answer to your question, but data table form permissions set to ‘can search, edit, and delete’, along with ‘write back’ bindings in a repeating panel give you quick and malleable create, edit, delete, and query access to any/every column in your tables (see the search and sort example above - the Anvil ORM search criteria can be edited as needed to satisfy your SQL-like query requirements). The basic examples above just give you a standardized UI interface to Create Read Update and Delete tables, and apply filer/sort criteria to your table views.

NOTE: form permissions are per app, as opposed to per data table, so you can create a single quick admin app like the examples above, with fast access to a shared data table, without exposing form permissions in your client app(s).