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Multiple Updates in MySQL
... is there a way to update multiple rows at once (as in, in one query) in MySQL?
17 Answers
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Count the items from a IEnumerable without iterating?
...some info:
The Count() extension doesn't always iterate. Consider Linq to Sql, where the count goes to the database, but instead of bringing back all the rows, it issues the Sql Count() command and returns that result instead.
Additionally, the compiler (or runtime) is smart enough that it will c...
How to strip HTML tags from a string in SQL Server?
I've got data in SQL Server 2005 that contains HTML tags and I'd like to strip all that out, leaving just the text between the tags. Ideally also replacing things like &lt; with < , etc.
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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...le里搜索，或到Dokan的官方网站去下载(Dokan官网)，源码是C语言的，应用例子有Ruby、.Net及C的。如果想要Delphi的例子代码，只能自己去找了。
刚开始时由于不清楚如何用Dokan来实现一个文件系统，所以需要做一些试验，结果一不...
How to use DISTINCT and ORDER BY in same SELECT statement?
...u want to do doesn't work is because of the logical order of operations in SQL, which, for your first query, is (simplified):
FROM MonitoringJob
SELECT Category, CreationDate i.e. add a so called extended sort key column
ORDER BY CreationDate DESC
SELECT Category i.e. remove the extended sort key ...
SQL selecting rows by most recent date
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So this isn't what the requester was asking for but it is the answer to "SQL selecting rows by most recent date".
Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row
SELECT t.chargeId, t.chargeType, t.serviceMonth FROM(
SELECT chargeId,MAX(serviceMonth)...
Current executing procedure name
Is it possible to get the name of the current Stored Procedure in MS SQL Server?
5 Answers
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unresolved reference to object [INFORMATION_SCHEMA].[TABLES]
...g started working. You may also wish to open the Visual Studio Options... SQL Server Tools... Online Editing... enable "Resolve references to system views and master database objects".
– NYCdotNet
Jul 24 '17 at 15:34
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Want to find records with no associated records in Rails
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This is still pretty close to SQL, but it should get everyone with no friends in the first case:
Person.where('id NOT IN (SELECT DISTINCT(person_id) FROM friends)')
share
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How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
...m looking for a way to generate a "Create and insert all rows" script with SQL Management Studio 2008 R2.
4 Answers
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