大约有 19,000 项符合查询结果(耗时:0.0155秒) [XML]

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PHP Warning: POST Content-Length of 8978294 bytes exceeds the limit of 8388608 bytes in Unknown on l

...oad-max-filesize (change 2M to 2000M). 3. Now stop the Apache server and MySQL. 4. Now restart Apache server and MySQL. It worked fine after that. Enjoy ur working now :) share | improve this ...
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What does `unsigned` in MySQL mean and when to use it?

What does "unsigned" mean in MySQL and when should I use it? 1 Answer 1 ...
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How can I add comments in MySQL?

I want to add comment in SQL code. How can I do this? I'm using MySQL. 6 Answers 6 ...
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]

I've got two options for unicode that look promising for a mysql database. 2 Answers 2...
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Join vs. sub-query

I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why. ...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术

...的一个。 本文的目的是解释ØMQ架构的基本概念,它们是如何组合起来的,以及它们被如此设计的原因。   拓扑 拓扑是ØMQ最主要的概念,除非你知道“拓扑”代表什么,否则将与其他概念混淆更难理解,甚至理解不当。 按...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...编写“健身宝”手机应用程序   3.问题:   (1)如何获取走路步数、距离?   (2)如何计算走路时间?   (3)如何获得当前位置?   (4)如何存储信息?   4.规划:   (1)利用pedometer(计步器)组件...
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MySQL - length() vs char_length()

...ore accurately UTF-16LE) is what Windows misleadingly calls “Unicode”. MySQL doesn't support UTF-16; instead the usual approach for putting Unicode strings in it is to use UTF-8. – bobince Nov 14 '09 at 14:20 ...
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How to do a regular expression replace in MySQL?

... With MySQL 8.0+ you could use natively REGEXP_REPLACE function. 12.5.2 Regular Expressions: REGEXP_REPLACE(expr, pat, repl[, pos[, occurrence[, match_type]]]) Replaces occurrences in the string expr that match the regular express...
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WinImage 映像读写工具 - 软件下载 - 清泛网 - 专注IT技能提升

...动器中的内容,支持转换虚拟硬盘映像,可将物理驱动器重置为可引导,可读取并写入磁盘。 8.50WinXP,Win7,Win8,Win10712K