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Fast way to discover the row count of a table in PostgreSQL
I need to know the number of rows in a table to calculate a percentage. If the total count is greater than some predefined constant, I will use the constant value. Otherwise, I will use the actual number of rows.
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Get full path without filename from path that includes filename
... testing File.Exists() and/or Directory.Exists() on your path first to see if you need to call Path.GetDirectoryName
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Convert string to symbol-able in ruby
...from string to symbol), and .to_s can convert (from symbol to string). and if you are dealing with an array consider .map(&:to_sym) or .map(&to_s) to convert all elements.
– jasonleonhard
Nov 5 '15 at 22:22
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Getting all selected checkboxes in an array
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and what to do if uncheck check box, to remove value from array
– Jubin Patel
Jun 7 '13 at 10:38
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Git push error: Unable to unlink old (Permission denied)
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Also keep in mind that if you still have the file opened this error will appear as well. Had the same error and that was why i was not able to push my changes in.
– Matias
Nov 3 '16 at 14:05
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How to make button look like a link?
...a link using CSS. The changes are done but when I click on it, it shows as if it's pushed as in a button. Any idea how to remove that, so that the button works as a link even when clicked?
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How can I detect when an Android application is running in the emulator?
I would like to have my code run slightly differently when running on the emulator than when running on a device. ( For example , using 10.0.2.2 instead of a public URL to run against a development server automatically.) What is the best way to detect when an Android application is running in the em...
Set title background color
...etextcolor">#FFFF00</color>
</resources>
In the AndroidMANIFEST.xml, set the theme attribute either in the application (for the whole application) or in the activity (only this activity) tags
<activity android:name=".CustomTitleBar" android:theme="@style/customTheme" ...
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Entity Framework Code First - Advantages and disadvantages of Fluent Api vs Data Annotations [closed
...can see):
Switch off cascading deletes:
.WillCascadeOnDelete(false)
Specify foreign key column name in the database when the key isn't exposed in your object model:
.Map(conf => conf.MapKey("MyForeignKeyID"))
Fine granular tuning of relationships, especially in all cases where only one side o...
How to run an application as “run as administrator” from the command prompt? [closed]
...w a gasket. Like any power command, it is both useful and necessary in specific contexts.
– b1nary.atr0phy
Jul 19 '16 at 10:58
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