# What percentage of revenue from the order database comes from local
# orders that were joined with the master database?
from data_integration import master_db,order_db
from soundex import soundex
from decimal import Decimal
joined_local_orders = sum([
select quantized
for m in master_db,
o in order_db
where soundex(m.first_name) == soundex(o.first_name) and
soundex(m.last_name) == soundex(o.last_name) and
any([ select c_addr.city == o.store.address.city
for c_addr in m.addresses ])
let orig = try Decimal(o.amount) except None,
quantized = try Decimal(o.amount).quantize(Decimal('1.00')) except None
where (orig and quantized) and orig == quantized ])
all_valid_orders = sum([
select quantized
for o in order_db
let orig = try Decimal(o.amount) except None,
quantized = try Decimal(o.amount).quantize(Decimal('1.00')) except None
where (orig and quantized) and orig == quantized ])
print ("Percentage of revenue from local orders = %.3g%%" % (joined_local_orders/all_valid_orders * 100 ))
Welcome to the PythonQL Web Demo
The Demo is organized into a number of scenarios that demonstrate the power and usability of PythonQL.
Each scenario illustrates a specific use case in data science that is addressed by PythonQL.
