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Best practices for SQL varchar column length [closed]
...), it does not make any difference whether you declare a column as VARCHAR(100) or VARCHAR(500).
You should see the max length provided for a VARCHAR column as a kind of constraint (or business rule) rather than a technical/physical thing.
For PostgreSQL the best setup is to use text without a le...
How do I expire a PHP session after 30 minutes?
... session.gc_divisor. And using the default values for those options (1 and 100 respectively), the chance is only at 1%.
Well, you could simply adjust these values so that the garbage collector is started more often. But when the garbage collector is started, it will check the validity for every reg...
Equivalent of LIMIT and OFFSET for SQL Server?
...h is taking a lot of time for higher volume of data example with offset of 1000000. How can I deal with this.
– Saroj Shrestha
Oct 28 '18 at 11:01
1
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How do you test running time of VBA code?
...ble(m_CounterStart)
crStop = LI2Double(m_CounterEnd)
TimeElapsed = 1000# * (crStop - crStart) / m_crFrequency
End Property
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To ternary or not to ternary? [closed]
...alue, so it cuts down on unnecessary repetition or variables:
x = (y < 100) ? "dog" :
(y < 150) ? "cat" :
(y < 300) ? "bar" : "baz";
rather than
if (y < 100) { x = "dog"; }
else if (y < 150) { x = "cat"; }
else if (y < 300) { x = "bar"; }
else { x = ...
Use CSS3 transitions with gradient backgrounds
... solid #839DB0;
cursor:pointer;
width: 150px;
height: 100px;
}
#DemoGradient:Hover{
background-position:100px;
}
<div id="DemoGradient"></div>
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How to override toString() properly in Java?
... }
public static void main(String args[]){
Student s1=new Student(100,”Joe”,”success”);
Student s2=new Student(50,”Jeff”,”fail”);
System.out.println(s1);//compiler writes here s1.toString()
System.out.println(s2);//compiler writes here s2.toString()
}
} ...
How to randomly select rows in SQL?
...le1
WHERE (ABS(CAST(
(BINARY_CHECKSUM
(keycol1, NEWID())) as int))
% 100) < 10
https://msdn.microsoft.com/en-us/library/cc441928.aspx
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How to paginate with Mongoose in Node.js?
...om a .find() call? I would like a functionality comparable to "LIMIT 50,100" in SQL.
31 Answers
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How may I sort a list alphabetically using jQuery?
...s not noticable with relatively short lists, but on a list containing over 100 elements it takes 3-4 seconds to finish sorting.
– Nathan Strong
Dec 29 '10 at 19:19
5
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