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Database development mistakes made by application developers [closed]
... exists--you should be using it.
It's quite common to see this failure on MySQL databases. I don't believe MyISAM supports it. InnoDB does. You'll find people who are using MyISAM or those that are using InnoDB but aren't using it anyway.
More here:
How important are constraints like NOT NULL...
Error 1022 - Can't write; duplicate key in table
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I thought MySQL Workbench would have fixed this when exporting the creation script, but that's what I get for "Ignore"ing the warning about this sort of thing when I opened the project.
– SnowInferno
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如何跟程序员谈一场没有Bug的恋爱 - 杂谈 - 清泛网 - 专注C/C++及内核技术
如何跟程序员谈一场没有Bug的恋爱现在越来越多的妹子把恋爱目标锁定在程序员上，原因无他：呆萌又多金。但如何和程序员相处一直是个问题，这篇文章就教你如何优（xin）雅（j 现在越来越多的妹子把恋爱目标锁定在程序...
AppInventor如何扫二维码？扫码结果如何与Web进行交互？ - App Inventor 2 ...
Q：请问扫二维码怎么实现？
[hide]A：使用“条码扫描器”组件：https://www.fun123.cn/reference/ ... html#BarcodeScanner
属性“使用外部扫描”设置为假，其他没有啥要注意的。就调用一下扫描方法，就能使用摄像头扫...
技术人员如何创业《三》- 合伙人的分工 - 资讯 - 清泛网 - 专注C/C++及内核技术
技术人员如何创业《三》- 合伙人的分工中国梦我们习主席上台后就大大倡导。国家领导人有他们的中国梦，创业者也怀揣着创业的梦想。我们张罗好产品就要准备风风火火的大干一番了。 “中国梦”我们习主席上台后就大大...
You can't specify target table for update in FROM clause
I have a simple mysql table:
11 Answers
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What is SQL injection? [duplicate]
...d queries, or applying your language/toolkit's escaping functions (such as mysql_real_escape_string() in PHP).
Once you understand SQL Injection you'll get the joke behind this cartoon.
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Drop multiple tables in one shot in mysql
...m in the correct order, nor whether they actually exist.
N.B. this is for MySQL only (as in the question). Other databases likely have different methods for doing this.
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Is there a naming convention for MySQL?
...e your standard, then run with it.
To answer your question outright - no, MySQL doesn't have a preferred naming convention/standard, so rolling your own is fine (and yours seems logical).
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mysql Foreign key constraint is incorrectly formed error
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mysql error texts doesn't help so much, in my case, the column had "not null" constraint, so the "on delete set null" was not allowed
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