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When should I use cross apply over inner join?
What is the main purpose of using CROSS APPLY ?
13 Answers
13
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What is SYSNAME data type in SQL Server?
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sysname is a built in datatype limited to 128 Unicode characters that, IIRC, is used primarily to store object names when creating scripts. Its value cannot be NULL
It is basically the same as using nvarchar(128) NOT NULL
EDIT
As mentioned b...
How can I convert this foreach code to Parallel.ForEach?
...l.ForEach and what does it exactly do?
Please don't reference any MSDN link.
5 Answers
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Delete with Join in MySQL
... want to delete the entries from the posts table:
DELETE posts
FROM posts
INNER JOIN projects ON projects.project_id = posts.project_id
WHERE projects.client_id = :client_id
EDIT: For more information you can see this alternative answer
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Django select only rows with duplicate field values
suppose we have a model in django defined as follows:
5 Answers
5
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How to get CSS to select ID that begins with a string (not in Javascript)?
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[id^=product]
^= indicates "starts with". Conversely, $= indicates "ends with".
The symbols are actually borrowed from Regex syntax, where ^ and $ mean "start of string" and "end of string" respectively.
See the specs for full information.
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Schema for a multilanguage database
I'm developing a multilanguage software. As far as the application code goes, localizability is not an issue. We can use language specific resources and have all kinds of tools that work well with them.
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Objective-C: difference between id and void *
... barriers for references of type id, but not for type void *. When declaring structures, this can be a critical difference. Declaring iVars like void *_superPrivateDoNotTouch; will cause premature reaping of objects if _superPrivateDoNotTouch is actually an object. Don't do that.
attempting to ...
How do I get the last inserted ID of a MySQL table in PHP?
I have a table into which new data is frequently inserted. I need to get the very last ID of the table. How can I do this?
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Random record in ActiveRecord
I'm in need of getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
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