Unique Orders and Customers Per Month
[]
['Create table If Not Exists Orders (order_id int, order_date date, customer_id int, invoice int)', 'Truncate table Orders', "insert into Orders (order_id, order_date, customer_id, invoice) values ('1', '2020-09-15', '1', '30')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('2', '2020-09-17', '2', '90')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('3', '2020-10-06', '3', '20')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('4', '2020-10-20', '3', '21')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('5', '2020-11-10', '1', '10')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('6', '2020-11-21', '2', '15')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('7', '2020-12-01', '4', '55')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('8', '2020-12-03', '4', '77')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('9', '2021-01-07', '3', '31')", "insert into Orders (order_id, order_date, customer_id, invoice) values ('10', '2021-01-15', '2', '20')"]
{"mysql": ["Create table If Not Exists Orders (order_id int, order_date date, customer_id int, invoice int)"], "mssql": ["Create table Orders (order_id int, order_date date, customer_id int, invoice int)"], "oraclesql": ["Create table Orders (order_id int, order_date date, customer_id int, invoice int)", "ALTER SESSION SET nls_date_format='YYYY-MM-DD'"], "database": true, "name": "unique_orders_and_customers", "pythondata": ["Orders = pd.DataFrame([], columns=['order_id', 'order_date', 'customer_id', 'invoice']).astype({'order_id':'Int64', 'order_date':'datetime64[ns]', 'customer_id':'Int64', 'invoice':'Int64'})"], "postgresql": ["Create table If Not Exists Orders (order_id int, order_date date, customer_id int, invoice int)"], "database_schema": {"Orders": {"order_id": "INT", "order_date": "DATE", "customer_id": "INT", "invoice": "INT"}}}
{"mysql": ["MySQL", "<p><code>MySQL 8.0</code>.</p>"], "mssql": ["MS SQL Server", "<p><code>mssql server 2019</code>.</p>"], "oraclesql": ["Oracle", "<p><code>Oracle Sql 11.2</code>.</p>"], "pythondata": ["Pandas", "<p>Python 3.10 with Pandas 2.2.2 and NumPy 1.26.4</p>"], "postgresql": ["PostgreSQL", "<p>PostgreSQL 16</p>"]}
['Database']