大约有 42,000 项符合查询结果(耗时:0.0286秒) [XML]

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How can I suppress column header output for a single SQL statement?

I'm executing some SQL statements in batch (using the mysql command-line binary). I want one of my several SELECT statements to not print the column headers, just the selected records. Is this possible? ...
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What is the leading LINQ for JavaScript library? [closed]

... I personally find the LINQ/set operations Union, Intersect, Except and Distinct on enumerables in .NET. very useful. There is a jquery plugin called jQuery Array Utilities which provides these methods to be used on arrays. Code examples: $.distinct([1, 2, 2, 3]) ...
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How can I temporarily disable a foreign key constraint in MySQL?

Is it possible to temporarily disable constraints in MySQL? 10 Answers 10 ...
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MySQL indexes - what are the best practices?

I've been using indexes on my MySQL databases for a while now but never properly learnt about them. Generally I put an index on any fields that I will be searching or selecting using a WHERE clause but sometimes it doesn't seem so black and white. ...
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Adding multiple columns AFTER a specific column in MySQL

...ermitted in a single ALTER TABLE statement, separated by commas. This is a MySQL extension to standard SQL, which permits only one of each clause per ALTER TABLE statement. – informatik01 May 1 '19 at 13:21 ...
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json_encode is returning NULL?

... I bet you are retrieving data in non-utf8 encoding: try to put mysql_query('SET CHARACTER SET utf8') before your SELECT query. share | improve this answer | follo...
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In PHP with PDO, how to check the final SQL parametrized query? [duplicate]

In PHP, when accessing MySQL database with PDO with parametrized query, how can you check the final query (after having replaced all tokens)? ...
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Using backticks around field names

...ering if there's anything wrong with using backticks around field names in MySQL. 11 Answers ...
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JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区,...

...了的东西,比如tomcat里的servlet就是线程,没有线程我们如何提供多用户访问呢?不过很多刚开始接触线程的开发攻城师却在这个上面吃了不少苦头。怎么做一套简便的线程开发模式框架让大家从单线程开发快速转入多线程开发...
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TypeScript function overloading

... TypeScript 1.4, you can typically remove the need for an overload using a union type. The above example can be better expressed using: myMethod(a: string | number, b?: string) { alert(a.toString()); } The type of a is "either string or number". ...