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What is the difference between precision and scale?
...s it won't accept a number with 7 or more significant digits.
Reference:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT1832
That page also has some examples that will make you understand precision and scale.
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7款在线思维导图制作网址及相关介绍 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...团队创建，于2006年6月上线，只是网站很不稳定，网址：http://www.mindpin.com。
百度脑图：百度也推出了在线的思维导图，网址：naotu.baidu.com。
参考：
http://blog.sina.com.cn/s/blog_6542dd420100w5l9.html
在线 思维导图
How do I make a redirect in PHP?
...two cents:
1. Basic answer
You can use the header() function to send a new HTTP header, but this must be sent to the browser before any HTML or text (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: ht...
Capture keyboardinterrupt in Python without try-except
...SystemExit exception for me. You can make it work nicely if you use it in combination with this: stackoverflow.com/a/13723190/353094
– leetNightshade
Mar 21 '15 at 19:42
2
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PHP check whether property exists in object or class
... and if it's null too, you can use the function property_exists().
Docs: http://php.net/manual/en/function.property-exists.php
As opposed with isset(), property_exists() returns TRUE even if the property has the value NULL.
bool property_exists ( mixed $class , string $property )
Example:
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Force browser to clear cache
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Look into the cache-control and the expires META Tag.
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
<META HTTP-EQUIV="EXPIRES" CONTENT="Mon, 22 Jul 2002 11:12:01 GMT">
Another common practices is to append constantly-changing strings to the end of the requested files....
How to request Administrator access inside a batch file
...un as administrator. Instead, they are just seeing "Access denied" on the command line window.
16 Answers
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What is the difference between .text, .value, and .value2?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What are some good Python ORM solutions? [closed]
...ance differences.
SQLAlchemy also has a declarative layer that hides some complexity and gives it a ActiveRecord-style syntax more similar to the Django ORM.
I wouldn't worry about Django being "too heavy." It's decoupled enough that you can use the ORM if you want without having to import the re...
How to print third column to last column?
...
awk '{ print substr($0, index($0,$3)) }'
solution found here:
http://www.linuxquestions.org/questions/linux-newbie-8/awk-print-field-to-end-and-character-count-179078/
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