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SQL WHERE ID IN (id1, id2, …, idn)
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Option 3 is simply horrible performance-wise. It sends a query every loop and hammers the database with small queries. It also prevents it from using any optimizations for "value is one of those in a given list"
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How to avoid merge-commit hell on GitHub/BitBucket
..., but you may not need that if you're keeping things as simple as possible and want to preserve all of your branch history on a merge.
Use the --ff-only Flag
Aside from rebasing, the use of the --ff-only flag will ensure that only fast-forward commits are allowed. A commit will not be made if it w...
LINQ to Entities case sensitive comparison
...our SQL Server which by default has SQL_Latin1_General_CP1_CI_AS Collation and that is NOT case sensitive.
Using ObjectQuery.ToTraceString to see the generated SQL query that has been actually submitted to SQL Server reveals the mystery:
string sqlQuery = ((ObjectQuery)context.Thingies
.Wher...
Is there an Eclipse line-width marker?
...neral -> Editors -> Text Editors -> Show Print Margin
Tick this and it should show the line.
As a quick way of finding this, use the search filter in the top and filter on "margin".
Notes from the comments - unverified by me, but I have no reason to doubt them:
It has changed someho...
Forcing child to obey parent's curved borders in CSS
I have a div inside of another div. #outer and #inner . #outer has curved borders and a white background. #inner has no curved borders and a green background. #inner extends beyond the curved borders of #outer . Is there anyway to stop this?
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Pull request without forking?
...I, github recently added a button to merged pull requests to make it easy (and intuitive) to delete the pull request branch: github.com/blog/1335-tidying-up-after-pull-requests
– David M
Feb 11 '13 at 22:36
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Fastest way to convert string to integer in PHP
...("hello"): 0.93678 (222%)
On average, calling intval() is two and a half times slower, and the difference is the greatest if your input already is an integer.
I'd be interested to know why though.
Update: I've run the tests again, this time with coercion (0 + $var)
| INPUT ($x) ...
You can't specify target table for update in FROM clause
...you should only be selecting the columns you need in that innermost query, and adding a good WHERE clause to limit the results, too.
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git ignore exception
I have a gitignore file that makes git ignore *.dll files, and that is actually the behavior I want. However, if I want an exception ( i.e. to be able to commit foo.dll ), how can I achieve this?
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Is there a numpy builtin to reject outliers from a list
...numpy builtin to do something like the following? That is, take a list d and return a list filtered_d with any outlying elements removed based on some assumed distribution of the points in d .
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