NW6 | Fikret Ellek | Module-DataBases | [TECH ED] Big Spender | week 2 #161
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sayoiscool
reviewed
Jun 15, 2024
| @@ -68,39 +68,39 @@ INSERT YOUR QUERY HERE | |||
| **You:** Then here's the query for that: | |||
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| ```sql | |||
| INSERT YOUR QUERY HERE | |||
| SELECT * FROM spends WHERE LOWER(description) LIKE '%fee%'; | |||
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Good work taking the capitlisations into consideration with 'LOWER'
| ``` | ||
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| **Farnoosh:** Hi, it's me again. It turns out we also need the transactions that have the expense area of 'Better Hospital Food'. Can you help us with that one? | ||
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| **You:** No worries. Here's the query for that: | ||
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| ```sql | ||
| INSERT YOUR QUERY HERE | ||
| SELECT s.*, e.expense_area FROM spends s JOIN expense_areas e ON s.expense_area_id=e.id WHERE LOWER(e.expense_area) LIKE '%better hospital food%'; |
| ``` | ||
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| **Claire:** Great, that's very helpful. How about the total amount spent for each month? | ||
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| **You:** You can get that by using the GROUP BY clause. Here's the query: | ||
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| ```sql | ||
| CREATE YOUR QUERY HERE | ||
| SELECT DATE_TRUNC('month', date)::DATE AS month, SUM(amount) AS total_amount FROM spends GROUP BY month ORDER BY month; |
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Nice work with the date format in your select statement!
| INSERT INTO expense_types (expense_type) | ||
| SELECT 'Hardware' | ||
| WHERE NOT EXISTS ( | ||
| SELECT 1 FROM expense_types WHERE expense_type = 'Hardware' |
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Great attention to detail! The 'Hardware', 'Dell', and 'IT' rows were missing from the other tables, and you've done well by adding the necessary insert statements to populate them.
sayoiscool
approved these changes
Jun 15, 2024
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