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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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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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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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What is cardinality in MySQL?

What is cardinality in MySQL? Please explain in simple, non-technical language. 8 Answers ...
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OnInitUpdate、OnUpdate、OnDraw与OnPaint - C/C++ - 清泛网 - 专注C/C++及内核技术

...情况下可能需要和框架直接发生作用,而在多视的情况下如何在视之间传递数据。 在使用菜单时大家会发现当一个菜单没有进行映射处理时为禁止状态,在多视的情况下菜单的状态和处理映射是和当前活动视相联系的,这...
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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 ...
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MySQL Workbench: How to keep the connection alive

Error Code: 2013. Lost connection to MySQL server during query 9 Answers 9 ...
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Difference between two dates in MySQL

... value can range from "-838:59:59" to "838:59:59". w3schools.com/SQl/func_mysql_timediff.asp – cREcker Aug 3 '17 at 12:21 ...
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MySQL Query GROUP BY day / month / year

...ecord_date), MONTH(record_date) Check out the date and time functions in MySQL. share | improve this answer | follow | ...