NW6 | Hadika Malik | Module-Database | Big-spender | Week 2 #167
Conversation
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| @@ -68,39 +68,48 @@ 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 description ilike '%fee%'; | |||
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Good work taking the capitlisations into consideration with 'ilike'
| select s.* | ||
| from spends s | ||
| join expense_areas ea on s.expense_area_id = ea.id | ||
| where ea.expense_area ilike '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 to_char(date,'YYYY-MM') as month from spends group by month; |
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Good attempt and nice formatting of the date, however you have partially answered the question. Only one column is returned, but two are expected in your results. Which column is missing?
| ``` | ||
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| **Farnoosh:** Oh, how do I know who these suppliers are? There's only numbers here. | ||
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| **You:** Whoops! I gave you ids to key the totals, but let me give you names instead. | ||
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| ```sql | ||
| INSERT YOUR QUERY HERE | ||
| select sp.amount, sup.supplier |
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The question is for the total amount spent by each supplier. Which operator missing here is needed to get the desired result?
| '3780119655', | ||
| 'Computer Hardware Dell', | ||
| 32000 | ||
| ); |
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Good attempt here. The rows ' Dell', 'Hardware' and 'IT' are missing from other tables, what extra step is needed to have the rows populated where necessary? What effect will this change have on the 'id's inserted in spends table?
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