Javascript help needed (Svelte) - Postgres SQL query generator / dynamic form

Looking for some help on a project to create 3 dynamic forms which would:

- Create a dynamic 'SELECT ... WHERE... ORDERBY... LIMIT...' statement from table schema provided
- Create a dynamic 'ALTER TABLE' statement from existing table structure
- Create a dynamic 'CREATE TABLE' statement from user provided fields

We have some sample JSON dummy data which has the general shape of the tables we're looking to use:
- schema
- table_name
- column_name
- data_type
- default
- is_nullable

As well as a prototype of the form's design in Svelte and some specs for the project.