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What is this operator in MySQL?
...perator, two values are compared and the result is either 0 (not equal) or 1 (equal); in other words: 'a' <=> 'b' yields 0 and 'a' <=> 'a' yields 1.
Unlike the regular = operator, values of NULL don't have a special meaning and so it never yields NULL as a possible outcome; so: 'a' <=...
Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
... [A-Za-z0-9_] word characters (including the underscore)
Example at regex101.com
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How to initialize all the elements of an array to any specific value in java
...l the elements to a specific value? Whenever we write int[] array=new int[10]; , this simply initialize an array of size 10 having all elements equal to zero. I just want to change this initialization integer for one of my array. i.e. I want to initialize an array which has all elements equal to ...
SQL Server add auto increment primary key to existing table
As the title, I have an existing table which is already populated with 150000 records. I have added an Id column (which is currently null).
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Git alias with positional parameters
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371
The most obvious way is to use a shell function:
[alias]
files = "!f() { git diff --name-st...
Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
I want to toggle a variable between 0 and 1. If it's 0 I want to set it to 1, else if it's 1 I want to set it to 0.
31 Answ...
LISTAGG in Oracle to return distinct values
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19c and later:
select listagg(distinct the_column, ',') within group (order by the_column)
from the_table
18c and earlier:
select listagg(the_column, ',') within group (order by the_column)
from (
select distinct the_c...
How to validate date with format “mm/dd/yyyy” in JavaScript?
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19 Answers
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What are the differences between json and simplejson Python modules?
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13 Answers
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