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Transaction isolation levels relation with locks on table
.... This means B reads the data under some condition i.e. WHERE aField > 10 AND aField < 20, A inserts data where aField value is between 10 and 20, then B reads the data again and get a different result.
SERIALIZABLE - lock on a full table(on which Select query is fired). This means, B reads th...
Check if an image is loaded (no errors) with jQuery
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edited Jul 16 '15 at 12:09
Abhinav Upadhyay
2,3481818 silver badges3131 bronze badges
answered Dec 30 ...
Add x and y labels to a pandas plot
... that object.
ax = df2.plot(lw=2, colormap='jet', marker='.', markersize=10, title='Video streaming dropout by category')
ax.set_xlabel("x label")
ax.set_ylabel("y label")
Or, more succinctly: ax.set(xlabel="x label", ylabel="y label").
Alternatively, the index x-axis label is automatically se...
Android and XMPP: Currently available solutions [closed]
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106
Smack
Smack is a open-source XMPP client library. Since version 4.1 it runs natively on Android...
Using LIMIT within GROUP BY to get N results per group?
... |
-----------------------------------------------------------
| p01 | 2006,2003,2008,2001,2007,2009,2002,2004,2005,2000 |
| p02 | 2001,2004,2002,2003,2000,2006,2007 |
-----------------------------------------------------------
And then you could use FIND_IN_SET, that retur...
Trim last character from a string
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303
"Hello! world!".TrimEnd('!');
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EDIT:
What I've noticed in this type of questions ...
PHP function to generate v4 UUID
...P manual, you could use this:
function gen_uuid() {
return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
// 16 bits for "time_mid"
mt_rand( 0, 0xffff ),
// 16 bits for "time_hi_and...
Macro vs Function in C
...ategy for fixing this is to put the statements inside a "do { ... } while (0)" loop.
If you have two structures that happen to contain a field with the same name but different semantics, the same macro might work on both, with strange results:
struct shirt
{
int numButtons;
};
struct webpage...
Rerender view on browser resize with React
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Find the division remainder of a number
... it might not be what you would expect when talking about the remainder: -10 % 3 == 2. However a/b*b + a%b == a still holds true, since python always rounds towards -Infinity, unlike some other languages, which round towards 0 but would return -1.
– marcelj
Oct...