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从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术

...游戏 ,吸引了越来越多的关注。现在的教育者也开始探索如何让学生在学习时也能像玩游戏一样沉浸其中。在游戏中需要解决一些交流、协作问题 ,这在学习系统中也会同样关注 ,因此很多学者也开始研究非正式学习领域内如何将...
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When to use single quotes, double quotes, and backticks in MySQL

...le and column identifiers, but are only necessary when the identifier is a MySQL reserved keyword, or when the identifier contains whitespace characters or characters beyond a limited set (see below) It is often recommended to avoid using reserved keywords as column or table identifiers when possibl...
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Inserting a Python datetime.datetime object into MySQL

I have a date column in a MySQL table. I want to insert a datetime.datetime() object into this column. What should I be using in the execute statement? ...
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In php, is 0 treated as empty?

...sset($var) && $var != 0){ Do Something} ?? – mysqllearner Feb 8 '10 at 9:22 1 @mysql For ...
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那些曾被追捧的90后创业男神女神,还好吗? - 资讯 - 清泛网 - 专注C/C++及内核技术

...右,距离1%还差不少。但不晓得安妮以及她的团队今后会如何去做,或许这样让人眼前一亮的作品再次出现要等很久,但我们却不得不承认,这次的1%亮了。 点评:鸡汤是这个时代最好的精神补品,但此前以漫画形式成功的案例...
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UTF-8 all the way through

...character set on all tables and text columns in your database. This makes MySQL physically store and retrieve values encoded natively in UTF-8. Note that MySQL will implicitly use utf8mb4 encoding if a utf8mb4_* collation is specified (without any explicit character set). In older versions of MyS...
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What is cardinality in MySQL?

What is cardinality in MySQL? Please explain in simple, non-technical language. 8 Answers ...
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那些微信公众大号是如何赚钱的? - 资讯 - 清泛网 - 专注C/C++及内核技术

那些微信公众大号是如何赚钱的?如今,微信公众号不仅是传递好文的平台,承载着万千运营者的兴趣和梦想,而且当粉丝量和文章阅读量高涨之后,随之而来的还有丰厚的经济效益。“你开公众号了吗?”不知从何时起,这个...
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MySQL/Amazon RDS error: “you do not have SUPER privileges…”

I'm attempting to copy my mysql database from an Amazon EC2 to an RDS: 7 Answers 7 ...
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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?

I tried this in mysql: 14 Answers 14 ...