This is true to a degree, but there are ways you can use multiple tools mixed and matched.
For a simple example, I might write my prototype in Python. After profiling I might decide to rewrite a couple of inner loops in C (or Cython). I might tie it to SQL Server as a datastore and use T-SQL in the interface.
For a simple example, I might write my prototype in Python. After profiling I might decide to rewrite a couple of inner loops in C (or Cython). I might tie it to SQL Server as a datastore and use T-SQL in the interface.