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Should I index a bit field in SQL Server?
I remember reading at one point that indexing a field with low cardinality (a low number of distinct values) is not really worth doing. I admit I don't know enough about how indexes work to understand why that is.
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How to get a file or blob from an object URL?
...via drag&drop and other methods. When an image is dropped, I'm using URL.createObjectURL to convert to an object URL to display the image. I am not revoking the url, as I do reuse it.
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Python in Xcode 4+?
How does one create a Python friendly environment in Xcode 4, 5, 6 or 7?
8 Answers
8
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'dragleave' of parent element fires when dragging over children elements
I have the following HTML structure and I've attached the dragenter and dragleave events to the <div id="dropzone"> element.
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How to create id with AUTO_INCREMENT on Oracle?
It appears that there is no concept of AUTO_INCREMENT in Oracle, up until and including version 11g.
16 Answers
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【HarmonyOS】真机测试ble - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
[2:01:15 PM] YAIL[254]: (begin (require <com.google.youngandroid.runtime>) (process-repl-input "P:)R:yv~...
[2:01:15 PM] → SimpleYail 执行
[2:01:15 PM] [YAIL] 解析 YAIL (244 chars)
[2:01:15 PM] [YAIL] 解析得到 1 个顶层表达式
[2:01:15 PM] [YAIL] 执行[0]: (be...
Why can a class not be defined as protected?
Why can we not define a class as protected ?
12 Answers
12
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SQL WHERE.. IN clause multiple columns
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Easiest way to detect Internet connection on iOS?
... will appear to be a dupe of many others, however, I don't feel the simple case is well explained here. Coming from an Android and BlackBerry background, making requests through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I wa...
How to import local packages without gopath
I've used GOPATH but for this current issue I'm facing it does not help. I want to be able to create packages that are specific to a project:
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