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How do you check if a certain index exists in a table?
...ropping and Creating an index on a large table is an expensive operation - esp if the existing index is already the one you want. This statement is good for one-step replacement. It doesn't compare the existing index - rather a brute force "do this, even if existing - drop it...just do it, get'r ...
Build Eclipse Java Project from Command Line
...h is after.
For a batch compilation, please refer to Compiling Java code, especially the section "Using the batch compiler"
The batch compiler class is located in the JDT Core plug-in. The name of the class is org.eclipse.jdt.compiler.batch.BatchCompiler. It is packaged into plugins/org.eclipse...
How can I write a heredoc to a file in Bash script?
...
EOF
Note that the final 'EOF' (The LimitString) should not have any whitespace in front of the word, because it means that the LimitString will not be recognized.
In a shell script, you may want to use indentation to make the code readable, however this can have the undesirable effect of indenti...
Can my enums have friendly names? [duplicate]
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So annoying when posts don't include the non-default namespaces that they reference... System.ComponentModel and System.Reflection
– musefan
Jan 24 '12 at 10:24
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融资千万美元后的足记要如何应对“爆款后遗症”？ - 资讯 - 清泛网 - 专注C...
...用户之间的‘缘分指数’，让用户看到彼此之间的连接点。还会有话题、标签，基于时间线的feed流等等。”杨柳介绍了新版增加的一些功能。
“8月底优先解决的是让用户找到用户。通过某一个很爆的功能，吸引到大批新...
MongoDB logging all queries
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this is the most complete response to the OP. esp. regarding the 'tail-able' requirement.
– Luke W
Dec 1 '16 at 15:12
add a com...
Iterate over the lines of a string
...ry fast ways; putting strings together by programming at a very low level (esp. by loops of += of very small pieces) can be quite slow.
Edit: added @Jacob's proposal, slightly modified to give the same results as the others (trailing blanks on a line are kept), i.e.:
from cStringIO import StringIO...
What does the “>” (greater-than sign) CSS selector mean?
... IE6 if it matters for your projects, OK everywhere else. This resource is esp. useful for siblings, :nth-child() etc where support is still incomplete
– FelipeAls
Jul 12 '10 at 4:59
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【软著】软件著作权证书申请流程及注意事项，模板分享 - App Inventor 2 中...
...表一个事件、一个函数、一个条件判断等。
块的布局和连接：除了保存块本身的代码逻辑，.blk 文件还记录了这些块如何在界面上布局和连接，确保应用逻辑在界面中正确呈现和执行。
.blk 文件的特点：
图形化编程的底层表...
How do you automatically set the focus to a textbox when a web page loads?
... answered Sep 5 '08 at 13:35
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