课程: Access 2016 Essential Training
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Specifying criteria with wildcards
- Adding wildcard characters to your query criteria is a perfect way for those times when you want to filter your data, based off of a common pattern, rather than an exact text match. Let's go ahead and create a new query by going to the create tab and then choosing the query designer. I'm going to build a query based off of our guests table. So, I'll double click it here in the show table window, and then we'll go ahead and close the show table window. From the guests table, we're going to pull out a couple of fields. I'm going to double click first name, double click last name, and we'll go ahead and scroll down here, and we'll double click on phone, and then we'll go ahead and scroll back up, and double click on country here. So, we've already seen that we can do an exact text search by coming down here to the criteria row, for instance, I'm in a criteria row below last name, and I can just type in Miller, for instance, if I wanted to find all of our guests with the last name of…
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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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