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Difference between VARCHAR and TEXT in MySQL [duplicate]
...ring
can be part of an index
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TEXT has a fixed max size of 2¹⁶-1 = 65535 characters.
VARCHAR has a variable max size M up to M = 2¹⁶-1.
So you cannot choose the size of TEXT but you can for a VARCHAR.
The other difference is, that you cannot put an index (except for a fulltext ...
Why does modern Perl avoid UTF-8 by default?
...oint has a distinct uppercase one, or vice versa, is broken. For example, "ª" is a lowercase letter with no uppercase; whereas both "ᵃ" and "ᴬ" are letters, but they are not lowercase letters; however, they are both lowercase code points without corresponding uppercase versions. Got that? They ...
How to move screen without moving cursor in Vim?
...line
Ctrl-e Moves screen down one line
Ctrl-u Moves cursor & screen up ½ page
Ctrl-d Moves cursor & screen down ½ page
Ctrl-b Moves screen up one page, cursor to last line
Ctrl-f Moves screen down one page, cursor to first line
Ctrl-y and Ctrl-e only change the cursor position if it woul...
How to manually expand a special variable (ex: ~ tilde) in bash
...ably, I'd go with either of these two:
Charle's Duffy's solution
Håkon Hægland's solution
Original answer for historic purposes (but please don't use this)
If I'm not mistaken, "~" will not be expanded by a bash script in that manner because it is treated as a literal string "~". You can fo...
Where can I download english dictionary database in a text format? [closed]
...purpose dictionary you can look up most words in.
– Lèse majesté
Dec 28 '12 at 2:50
2
The Objec...
Regular expression to match DNS hostname or IP Address?
... Non-latin (Punycoded) hostnames must be converted to ASCII form first (éxämplè.com = xn--xmpl-loa1ab.com) and then validated.
– Alix Axel
Jul 21 '13 at 8:36
6
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How to unescape HTML character entities in Java?
... @NickFrolov, your comments seem a bit messed up. auml is for instance ä and not д.
– aioobe
Oct 17 '16 at 1:52
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show 3 more comments...
What is self-documenting code and can it replace well documented code? [closed]
...is being done:
/* compute displacement with Newton's equation x = vₒt + ½at² */
const float gravitationalForce = 9.81;
float timeInSeconds = 5;
float displacement = (1 / 2) * gravitationalForce * (timeInSeconds ^ 2);
And the final version of code as documentation with zero comments needed:
f...
Is the size of C “int” 2 bytes or 4 bytes?
...xteen bits of storage:
UINT_MAX 65535 // 2¹⁶ - 1
Thus we can see that unsigned int require (at least) 16 bits, which is where you get the two bytes (assuming CHAR_BIT is 8)... and later when that limit increased to 2³² - 1, people were stating 4 bytes instead...
How do I get user IP address in django?
... answered May 12 '11 at 9:38
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