课程: Access 2016 Essential Training
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Challenge: Creating queries
- Now that we've seen a lot of different ways that we can pull information out of our data tables with queries it's time to pull all of the pieces together with another challenge. At the Landon Hotel we have classes of rooms named after different areas around London. You'll find them listed in the RoomName field on the Rooms table. And they have names such as Cambridge, Oxford, and Westminster. I'd like to have you create a query that determines the popularity to each of these room names with the guests of the hotel. Specifically I want to find out which of the room names have had the most guests and which have generated the most revenue. Here's a hint, you'll need to use the Totals button in your query to get the answer. I estimate that this challenge should take about five minutes to complete.
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内容
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Understanding queries3 分钟 10 秒
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Creating queries with the Simple Query Wizard3 分钟 58 秒
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Building queries in Design view9 分钟 23 秒
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Establishing constraints with criteria5 分钟 28 秒
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Specifying criteria with wildcards4 分钟 16 秒
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Leveraging multiple criteria with AND and OR statements6 分钟 7 秒
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Filtering with mathematical comparisons3 分钟 41 秒
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Creating flexible queries with parameter requests5 分钟 7 秒
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Building expressions7 分钟 26 秒
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Obtaining summary statistics7 分钟 3 秒
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Challenge: Creating queries42 秒
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Solution: Creating queries4 分钟 38 秒
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