11 lines
		
	
	
		
			147 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			11 lines
		
	
	
		
			147 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ## Comparisons vs. Functions
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| 
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| 1. Improve the following query
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| 
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| ```
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| SELECT count(*)
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| FROM shawarma_purchases
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| WHERE
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|   YEAR(purchased_at) == '2017'
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| ```
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