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sqlalchemy: how to join several tables by one query?
...can receive multiple criteria if comma separated. Is it preferable to use one .filter() with comma separations inside the parenthesis, or use multiple .filter() like the above answer?
– Intrastellar Explorer
Apr 18 '19 at 22:27
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Regular expression for matching latitude/longitude coordinates?
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This one will strictly match latitude and longitude values that fall within the correct range:
^[-+]?([1-8]?\d(\.\d+)?|90(\.0+)?),\s*[-+]?(180(\.0+)?|((1[0-7]\d)|([1-9]?\d))(\.\d+)?)$
Matches
+90.0, -127.554334
45, 180
-90, ...
Unit testing Anti-patterns catalogue
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Yeah, that's my favorite one. I do it all the time. Oh... wait... you said that this was a bad thing. :-)
– guidoism
Sep 10 '10 at 22:37
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C# Regex for Guid
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This one is quite simple and does not require a delegate as you say.
resultString = Regex.Replace(subjectString,
@"(?im)^[{(]?[0-9A-F]{8}[-]?(?:[0-9A-F]{4}[-]?){3}[0-9A-F]{12}[)}]?$",
"'$0'");
This matches the follo...
Using IntelliJ to amend git commit message
Can one amend a git commit message using IntelliJ , or should one resort to command line?
9 Answers
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
I have a JPA-persisted object model that contains a many-to-one relationship: an Account has many Transactions . A Transaction has one Account .
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What is the difference between user and kernel modes in operating systems?
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How the switch occurs.
The switch from user mode to kernel mode is not done automatically by CPU. CPU is interrupted by interrupts (timers, keyboard, I/O). When interrupt occurs, CPU stops executing the current running program, switch to kernel mode, executes interrupt handler. This handler saves...
How to get different colored lines for different plots in a single figure?
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Edit:
First off, if you have a lot (>5) of things you want to plot on one figure, either:
Put them on different plots (consider using a few subplots on one figure), or
Use something other than color (i.e. marker styles or line thickness) to distinguish between them.
Otherwise, you're go...
How to change an application icon programmatically in Android?
...de. It has a button increment. When pressed, the shortcut is replaced with one that has a new counting number.
First you need these two permissions in your manifest:
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
<uses-permission android:name="com.andr...
How to escape double quotes in JSON
I'm trying to show double quotes but it shows one of the backslashes:
7 Answers
7
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