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10 TechQA 2015-06-17 21:34:01How to get number of invoices for last 12 weeks in Postgres
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								Asked by Andrus
								
							
						
					Select one row per day for each value
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					Dynamic Date Table
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					Rails ActiveRecord Arels: Unsupported argument type: String. Construct an Arel node instead
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					Create a row for every month between 2 dates in PostgreSQL
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					Generate serie with prefix and leading zeros (postgresql)
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					generate_series() - how to use it to populate multiple columns in a table?
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								Asked by Happydevdays
								
							
						
					How to get a simple hash join query to perform as well as a complex sort merge query?
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								Asked by foobar0100
								
							
						
					Selecting an average of records grouped by 5 minute periods
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								Asked by Piotr Zduniak