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Error 1046 No database Selected, how to resolve?

... You need to tell MySQL which database to use: USE database_name; before you create a table. In case the database does not exist, you need to create it as: CREATE DATABASE database_name; followed by: USE database_name; ...
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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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Using column alias in WHERE clause of MySQL query produces an error

...is executed, the column value may not yet be determined. Copied from MySQL documentation As pointed in the comments, using HAVING instead may do the work. Make sure to give a read at this WHERE vs HAVING though. share...
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What MySQL data type should be used for Latitude/Longitude with 8 decimal places?

... DECIMAL is the MySQL data-type for exact arithmetic. Unlike FLOAT its precision is fixed for any size of number, so by using it instead of FLOAT you might avoid precision errors when doing some calculations. If you were just storing and ret...
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Does MySQL foreign_key_checks affect the entire database?

When I execute this command in MySQL: 6 Answers 6 ...
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携程遭超长宕机:内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术

...密关注官方回应,如遇信息泄露,必要时可修改银行支付密码,以免造成经济损失。 律师说法 携程本次瘫痪毕竟对用户造成了损失以及后续可能造成的信息丢失或信息泄露问题,对此知名互联网行业律师赵占领表示,携程与...
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MySQL Great Circle Distance (Haversine formula)

...script that gets Longitude and Latitude values and then inputs them into a MySQL query. I'd like to make it solely MySQL. Here's my current PHP Code: ...
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Convert JS date time to MySQL datetime

Does anyone know how to convert JS dateTime to MySQL datetime? Also is there a way to add a specific number of minutes to JS datetime and then pass it to MySQL datetime? ...
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How to get all columns' names for all the tables in MySQL?

Is there a fast way of getting all column names from all tables in MySQL , without having to list all the tables? 10 Answe...
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How do I create a PDO parameterized query with a LIKE statement?

... thanks. had similar issue with csharp + Mysql + ODBC using like it would not return any rows using "select * from table where column like '%?%';" but will if I do like you did "select * from table where column like ?;" and set the parameter string so: string frag =...