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String concatenation does not work in SQLite
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field1 || field2 returns null if one of the fields is null. One might want to do ifnull(field1,'')||ifnull(field2,''). That will give you a response if one or both fields are null. Then you get to figure out what you want to do if both were null.
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How to sort an array of associative arrays by value of a given key in PHP?
... It shouldn't require any change to work with numeric keys. If you're hitting a bug or weird behaviour related to numeric keys, post it as a new question.
– Josh Davis
Jan 5 '12 at 0:22
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Selecting a row in DataGridView programmatically
....SelectedRows.Clear();
foreach(DataGridViewRow row in dataGrid.Rows)
{
if(YOUR CONDITION)
row.Selected = true;
}
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Which iOS app version/build number(s) MUST be incremented upon App Store release?
...umber you used (for that same version).
You can re-use Build Numbers in different release trains, but you cannot re-use Build Numbers within the same release train. For macOS apps, you cannot re-use build numbers in any release train.
Based on the checklist, the following (Version, Build Nu...
How do I log ALL exceptions globally for a C# MVC4 WebAPI app?
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If your web API is hosted inside an ASP.NET application, the Application_Error event will be called for all unhandled exceptions in your code, including the one in the test action you have shown. So all you have to do is hand...
How to discover number of *logical* cores on Mac OS X?
...lanagan how many physical cores does the machine have and what chip is it? If it's a core i7 with 2 physical cores for example, it will show as 4 because the chip supports hyper-threading and presents itself to the OS as if it has 4 addressable cores.
– jkp
Sep...
Format / Suppress Scientific Notation from Python Pandas Aggregation Results
How can one modify the format for the output from a groupby operation in pandas that produces scientific notation for very large numbers?
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Want to exclude file from “git diff”
I am trying to exclude a file ( db/irrelevant.php ) from a Git diff. I have tried putting a file in the db subdirectory called .gitattributes with the line irrelevant.php -diff
and I have also tried creating a file called .git/info/attributes containing db/irrelevant.php .
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How to obtain the last path segment of a URI
...rching for Android's android.net.Uri (not java.net.URI) and ended up here. If you're using that instead, there's a method there called getLastPathSegment() which should do the same thing. :)
– pm_labs
Mar 4 '13 at 4:19
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JPA and Hibernate - Criteria vs. JPQL or HQL
... to express queries in Hibernate, but sometimes Criteria Queries are more difficult to understand/build than HQL.
21 Answe...