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SQL Server : GROUP BY clause to get comma-separated values [duplicate]
...ECT ReportId, Email =
STUFF((SELECT ', ' + Email
FROM your_table b
WHERE b.ReportId = a.ReportId
FOR XML PATH('')), 1, 2, '')
FROM your_table a
GROUP BY ReportId
SQL fiddle demo
sha...
正确重置MySQL密码 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...下面是错误答案：
首先停止MySQL服务，然后使用skip-grant-tables参数启动它：
shell> /etc/init.d/mysql stopshell> mysqld_safe --skip-grant-tables &
此时无需授权就可以进入到MySQL命令行，使用SQL重置MySQL密码：
UPDATE mysql.user SET Password=PASSWORD('......
正确重置MySQL密码 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...
下面是错误答案：首先停止MySQL服务，然后使用skip-grant-tables参数启动它：shell> /etc/init.d/mysql stopshell> mysqld_safe --skip-grant-tables &此时无需授权就可以进入到MySQL命令行，使用SQL重置MySQL密码：UPDATE mysql.user SET Password=PASSWORD(...
When to use nil, blank, empty? [duplicate]
...
Here I made this useful table with all the cases
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How do we count rows using older versions of Hibernate (~2009)?
For example, if we have a table Books, how would we count total number of book records with hibernate?
8 Answers
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How should I pass multiple parameters to an ASP.Net Web API GET?
...alls don't repeat them. In my case I'm just making an insert into another table to track which are processed.
– sig606
Jun 8 '12 at 16:40
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best practice to generate random token for forgot password
...rch in about a week's time for a low-budget attacker:
mt_rand() is predictable (and only adds up to 31 bits of entropy)
uniqid() only adds up to 29 bits of entropy
md5() doesn't add entropy, it just mixes it deterministically
Since a 56-bit DES key can be brute-forced in about 24 hours, and an a...
Limit file format when using ?
...ignature (ASP.NET, PHP, Ruby, Java). You might also want to refer to these tables for file types and their magic numbers, to perform a more robust server-side verification.
Here are three good reads on file-uploads and security.
EDIT: Maybe file type verification using its binary signature can also...
Why do people hate SQL cursors so much? [closed]
...I. Cursors are how parts of the RDBMS work under the hood. Often CREATE TABLE and INSERT have SELECT statements, and the implementation is the obvious internal cursor implementation.
Using higher-level "set-based operators" bundles the cursor results into a single result set, meaning less API b...
Converting Storyboard from iPhone to iPad
...e background for everything).
EDIT: It seems the default background for UITableView in the Attributes inspector is rather strange. I had to manually set the background to "Group Table View Background Color" for grouped table views, and "White Color" for non-grouped table views. It then was displa...