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Combining Two Lists Of Customers

#1 · 1 of 10Free sample

Instructions

Combining Two Lists Of Customers

Retrieve a combined list of customer cities using UNION from two sets of conditions, ensuring no duplicates appear. Show only the city column.

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customers7 cols

customer_idINTEGER
first_nameTEXT
last_nameTEXT
emailTEXT
cityTEXT
join_dateTEXT
phoneTEXT

departments3 cols

department_idINTEGER
department_nameTEXT
locationTEXT

employees6 cols

employee_idINTEGER
first_nameTEXT
last_nameTEXT
department_idINTEGER
hire_dateTEXT
salaryREAL

categories2 cols

category_idINTEGER
category_nameTEXT

products6 cols

product_idINTEGER
product_nameTEXT
category_idINTEGER
unit_priceREAL
stock_quantityINTEGER
creation_dateTEXT

orders6 cols

order_idINTEGER
customer_idINTEGER
employee_idINTEGER
order_dateTEXT
statusTEXT
total_amountREAL

order_items4 cols

order_idINTEGER
product_idINTEGER
quantityINTEGER
unit_priceREAL

suppliers4 cols

supplier_idINTEGER
supplier_nameTEXT
cityTEXT
products_suppliedTEXT

shipping_addresses6 cols

shipping_idINTEGER
order_idINTEGER
addressTEXT
cityTEXT
stateTEXT
postal_codeTEXT

inventory_movements5 cols

movement_idINTEGER
product_idINTEGER
change_quantityINTEGER
movement_dateTEXT
reasonTEXT

cities3 cols

city_idINTEGER
city_nameTEXT
stateTEXT

Tables

11 tables