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How to find the size of an array in postgresql
...e trick. Or if you know that the array is 1-dimensional (which is likely) and are running PostgreSQL 9.4 or higher, you can use cardinality:
SELECT cardinality(id) FROM example;
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Exclude folder from search but not from the project list
...fy Source Root by going to Settings > Project Settings > Directories and adding additional directories.
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Xcode Find and replace in all project files
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are there shortcuts? ⌘3 opens find and search but can I also switch between find and replace?
– IceFire
Oct 30 '18 at 7:21
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How can I pass a constant value for 1 binding in multi-binding?
... it is any other primitive data type, you need to define a static resource and reference this.
Define the sys namespace in the root of the XAML to point to System in mscorlib, and the following should work:
<TextBlock>
<TextBlock.Resources>
<sys:Int32 x:Key="fixedValue">123...
How do I compare two files using Eclipse? Is there any option provided by Eclipse?
...orer / Navigator with control-click. Now right-click on one of the files, and the following context menu will appear. Select Compare With / Each Other.
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What is the difference between JDK dynamic proxy and CGLib?
...roxy Design Pattern , What is the difference between JDK's Dynamic Proxy and third party dynamic code generation API s such as CGLib ?
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Statistics: combinations in Python
... +1 for suggesting to write something simple, for using reduce, and for the cool demo with pascal triangle
– jon_darkstar
Nov 8 '10 at 15:32
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Return first match of Ruby regex
I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
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Possible to access the index in a Hash each loop?
...me thing as (key,value) = arr, putting the first value (the key) into key, and the second into value.
– rampion
Jan 18 '10 at 2:45
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What's the difference between := and = in Makefile?
For variable assignment in Make, I see := and = operator. What's the difference between them?
3 Answers
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