text: -----------------------------------------------------------------------
  -- products
  -----------------------------------------------------------------------
  
  DROP TABLE IF EXISTS [products];
  
  CREATE TABLE [products]
  (
      [id] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      [title] VARCHAR(255) NOT NULL,
      [price] FLOAT(6,2) NOT NULL,
      UNIQUE ([id])
  );
  
  -----------------------------------------------------------------------
  -- carts
  -----------------------------------------------------------------------
  
  DROP TABLE IF EXISTS [carts];
  
  CREATE TABLE [carts]
  (
      [id] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      UNIQUE ([id])
  );
  
  -----------------------------------------------------------------------
  -- product_cart
  -----------------------------------------------------------------------
  
  DROP TABLE IF EXISTS [product_cart];
  
  CREATE TABLE [product_cart]
  (
      [cart_id] INTEGER NOT NULL,
      [product_id] INTEGER NOT NULL,
      PRIMARY KEY ([cart_id],[product_id]),
      UNIQUE ([cart_id],[product_id])
  );
  