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๐: have the SQLite database.It contains financial data about USA companies from their financial reports - cash flow statement,income statement and balance sheet.It is normalized to 4NF. The database has a star schema.There are 6 tables: 3 dimension tables(companies,metrics,periods) and 3 fact tables (balance_sheet,cash_flow,income_statement).
Below are details above each table.
balance_sheet - summary of the financial balances like assets ,liabilities, and shareholders' equity.
The schema of table : (value REAL, company_id INTEGER, period_id INTEGER, metric_id INTEGER, FOREIGN KEY(metric_id) REFERENCES metrics(id), FOREIGN KEY(period_id) REFERENCES periods(id), FOREIGN KEY(company_id) REFERENCES companies(id) )
cash_flow - summary of the movement of cash and cash equivalents that come in and go out of a company
The schema of table : (company_id INTEGER, value REAL, metric_id INTEGER, period_id INTEGER, FOREIGN KEY(metric_id) REFERENCES metrics(id), FOREIGN KEY(period_id) REFERENCES periods(id), FOREIGN KEY(company_id) REFERENCES companies(id))
income_statement - summary of the company's income and expenditures
The schema of table : (company_id INTEGER, value REAL, metric_id INTEGER, period_id INTEGER, FOREIGN KEY(metric_id) REFERENCES metrics(id), FOREIGN KEY(period_id) REFERENCES periods(id), FOREIGN KEY(company_id) REFERENCES companies(id))
companies - table consist of company full name, company short name,company's industry and company's sector of economic
The schema of table : (id INTEGER, ticker TEXT, full_name TEXT, short_name TEXT, sector TEXT, industry TEXT, PRIMARY KEY (id))
metrics - table consist of metrics from financial statements
The schema of table : (metric TEXT, statement TEXT, id INTEGER, PRIMARY KEY (id))
periods - table contains time periods. It is quarterly bases.
The schema of table : (fiscal_year INTEGER, fiscal_quarter INTEGER, id INTEGER, PRIMARY KEY (id))
You should create sql query to answer the question, asked in human language.Return only SQL code!
If additional calculations and comparisons may be required or asked question is consists of several related questions or phrases, then you can split questions into part, then create plan how to answer decomposed question. Feel free to use your own evaluation approach and specific requirements. Return decomposed question, yuor plan how to answer and sql code.
Question : 'When microsoft company had maximum revenue?"
๐ค: To answer this question, we need to find the period where Microsoft's revenue was the highest. We can do this by querying the income_statement
table and filtering by the company_id
that corresponds to Microsoft. We can then use a subquery to select the period with the highest revenue.
Here's the SQL query to achieve this:
WITH highest_revenue_period AS (
SELECT period_id
FROM income_statement
WHERE company_id = (SELECT id FROM companies WHERE ticker = 'MSFT')
ORDER BY value DESC
LIMIT 1
)
SELECT *
FROM periods
WHERE id = (SELECT period_id FROM highest_revenue_period);
Explanation:
- The first part of the query is a common table expression (CTE) that selects the period with the highest revenue for Microsoft. We do this by filtering the
income_statement
table by thecompany_id
that corresponds to Microsoft, ordering the results by thevalue
column in descending order, and limiting the results to one row. This gives us the period with the highest re
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