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MySQL, update multiple tables with one query
... edited Jul 8 at 9:11
underscore_d
4,90633 gold badges2828 silver badges5454 bronze badges
answered Feb 23 '12 at 16:41
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Find intersection of two nested lists?
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You can use filter(set(c1).__contains__, sublist) for efficiency. btw, the advantage of this solution is that filter() preserves strings and tuples types.
– jfs
Mar 14 '09 at 10:46
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How to generate random number with the specific length in python
... use an arbitrary number of digits:
from random import randint
def random_with_N_digits(n):
range_start = 10**(n-1)
range_end = (10**n)-1
return randint(range_start, range_end)
print random_with_N_digits(2)
print random_with_N_digits(3)
print random_with_N_digits(4)
Output:
33
124
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Are unused CSS images downloaded?
... </style>
</head>
<body>
<?php if(isset($_GET['foo'])) {
file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']);
} ?>
</body>
</html>
If test.txt is populated with the browser's user agent, then the image is downloaded. This was not the ...
How to Create Multiple Where Clause Query Using Laravel Eloquent?
...e more granular wheres passed as an array:
$query->where([
['column_1', '=', 'value_1'],
['column_2', '<>', 'value_2'],
[COLUMN, OPERATOR, VALUE],
...
])
Personally I haven't found use-case for this over just multiple where calls, but fact is you can use it.
Since June 2...
How does BLAS get such extreme performance?
... of the Strassen algorithm - ibm.com/support/knowledgecenter/en/SSFHY8/essl_welcome.html
– ben-albrecht
Oct 1 '18 at 13:36
2
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ERROR: Error 1005: Can't create table (errno: 121)
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To check constraints use the following SQL query:
SELECT
constraint_name,
table_name
FROM
information_schema.table_constraints
WHERE
constraint_type = 'FOREIGN KEY'
AND table_schema = DATABASE()
ORDER BY
constraint_name;
Look for more information there, or try to see where ...
Is there a way to perform “if” in python's lambda
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If you still want to print you can import future module
from __future__ import print_function
f = lambda x: print(x) if x%2 == 0 else False
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What is the advantage to using bloom filters?
... Alex BudovskiAlex Budovski
16.1k66 gold badges4646 silver badges5757 bronze badges
2
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How do I get NuGet to install/update all the packages in the packages.config?
...tall each package
$packages.packages.package | % { Install-Package -id $($_.id) -Version $($_.version) }
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