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SQL Joins Vs SQL Subqueries (Performance)?
I wish to know if I have a join query som>me m>thing like this -
8 Answers
8
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Exception thrown in catch and finally clause
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Based on reading your answer and seeing how you likely cam>me m> up with it, I believe you think an "exception-in-progress" has "precedence". Keep in mind:
When an new exception is thrown in a catch block or finally block that will propagate out of that block, then the current excepti...
Does Java have a HashMap with reverse lookup?
I have data that is organized in kind of a "key-key" format, rather than "key-value". It's like a HashMap, but I will need O(1) lookup in both directions. Is there a nam>me m> for this type of data structure, and is anything like this included in Java's standard libraries? (or maybe Apache Commons?)
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How do you maintain developm>me m>nt code and production code? [closed]
... Is it good practice to have only the production ready code in the developm>me m>nt branch, or should untested latest code be available in the developm>me m>nt branch?
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... or --file scriptfile
从脚本文件中读取awk命令。
-mf nnn and -mr nnn
对nnn值设置内在限制，-mf选项限制分配给nnn的最大块数目；-mr选项限制记录的最大数目。这两个功能是Bell实验室版awk的扩展功能，在标准awk中不适用。
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How to get domain URL and application nam>me m>?
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The web application nam>me m> (actually the context path) is available by calling HttpServletrequest#getContextPath() (and thus NOT getServletPath() as one suggested before). You can retrieve this in JSP by ${pageContext.request.contextPath}.
<p&g...
How to remove outliers from a dataset
I've got som>me m> multivariate data of beauty vs ages. The ages range from 20-40 at intervals of 2 (20, 22, 24....40), and for each record of data, they are given an age and a beauty rating from 1-5. When I do boxplots of this data (ages across the X-axis, beauty ratings across the Y-axis), there are so...
How to use a variable to specify column nam>me m> in ggplot
I have a ggplot command
6 Answers
6
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Does VBA have Dictionary Structure?
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Yes.
Set a reference to MS Scripting runtim>me m> ('Microsoft Scripting Runtim>me m>'). As per @regjo's comm>me m>nt, go to Tools->References and tick the box for 'Microsoft Scripting Runtim>me m>'.
Create a dictionary instance using the code below:
Set dict = C...
What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...binary data using only printable (text) characters.
See this paragraph from the wikipedia page for HTTP Basic Authentication:
While encoding the user nam>me m> and password with the Base64 algorithm typically makes them unreadable by the naked eye, they are as easily decoded as they are encoded. Sec...